Matheson Model 18 Single Stage General Purpose Brass RegulatorSEQ18NI, No InletA CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. This regulator is not equipped with a CGA-Inlet connection. See CGA Connection Chart.pdf in the downloads section for specific gas types and associated inlets, then browse our CGA-Inlet section to tailor your regulator to your application’s needs.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson, series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass Regulator SEQ18, CGA-580 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-580 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson, series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass RegulatorSEQ18, CGA-326A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-326 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (944 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass Regulator SEQ18, CGA-350 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-350 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (944 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass RegulatorSEQ18, CGA-510A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-510 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (944 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass RegulatorSEQ18, CGA-540A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-540 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (944 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass RegulatorSEQ18, CGA-580A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-580 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (944 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18 Single Stage General Purpose Brass Regulator SEQ18, CGA-590 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-590 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 2000 CFH (944 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 2-50 PSIG Delivery Pressure Gauge: 0-60 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18 regulator is to be used in applications requiring delivery pressures up to 50 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass Regulator SEQ18BNI, No Inlet A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. This regulator is not equipped with a CGA-Inlet connection. See CGA Connection Chart.pdf in the downloads section for specific gas types and associated inlets, then browse our CGA-Inlet section to tailor your regulator to your application's needs. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass RegulatorSEQ18B, CGA-320A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-320 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass RegulatorSEQ18B, CGA-326A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-326 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass RegulatorSEQ18B, CGA-350A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-350 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass Regulator SEQ18B, CGA-510 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-510 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass RegulatorSEQ18B, CGA-540A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-540 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass RegulatorSEQ18B, CGA-580A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-580 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18B Single Stage General Purpose Brass RegulatorSEQ18B, CGA-590A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-590 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 900 CFH (425 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 0-15 PSIG Delivery Pressure Gauge: 0-30 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18B regulator is to be used in applications requiring delivery pressures up to 15 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass Regulator SEQ18HNI, No Inlet A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. This regulator is not equipped with a CGA-Inlet connection. See CGA Connection Chart.pdf in the downloads section for specific gas types and associated inlets, then browse our CGA-Inlet section to tailor your regulator to your application's needs. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass Regulator SEQ18H, CGA-320 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-320 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass RegulatorSEQ18H, CGA-326A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-326 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass Regulator SEQ18H, CGA-350 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-350 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass RegulatorSEQ18H, CGA-510A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-510 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass RegulatorSEQ18H, CGA-540A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-540 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass Regulator SEQ18H, CGA-580 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-580 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18H Single Stage General Purpose Brass Regulator SEQ18H, CGA-590 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-590 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 10-200 PSIG Delivery Pressure Gauge: 0-400 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18H regulator is to be used in applications requiring delivery pressures up to 200 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass Regulator SEQ18LNI, No Inlet A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. This regulator is not equipped with a CGA-Inlet connection. See CGA Connection Chart.pdf in the downloads section for specific gas types and associated inlets, then browse our CGA-Inlet section to tailor your regulator to your application's needs. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass Regulator SEQ18L, CGA-320 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-320 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass RegulatorSEQ18L, CGA-326A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-326 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass Regulator SEQ18L, CGA-350 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-350 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass RegulatorSEQ18L, CGA-510A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-510 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass RegulatorSEQ18L, CGA-540A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-540 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass Regulator SEQ18L, CGA-580 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-580 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18L Single Stage General Purpose Brass Regulator SEQ18L, CGA-590 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-590 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 4000 CFH (1890 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 4-100 PSIG Delivery Pressure Gauge: 0-150 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18L regulator is to be used in applications requiring delivery pressures up to 100 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass Regulator SEQ18RNI, No Inlet A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. This regulator is not equipped with a CGA-Inlet connection. See CGA Connection Chart.pdf in the downloads section for specific gas types and associated inlets, then browse our CGA-Inlet section to tailor your regulator to your application's needs. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass Regulator SEQ18R, CGA-320 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-320 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass RegulatorSEQ18R, CGA-326A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-326 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass Regulator SEQ18R, CGA-350 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-350 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass RegulatorSEQ18R, CGA-510A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-510 fitting.Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass Regulator SEQ18R, CGA-540 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-540 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass Regulator SEQ18R, CGA-580 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-580 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.

Matheson Model 18R Single Stage General Purpose Brass Regulator SEQ18R, CGA-590 A CGA fitting is the standardized system for the attachment of a compressed gas cylinder to the required regulator or transfer line. The three digit number, CGA (XXX), corresponds to specific gasses which that fitting is tailored for. See CGA Connection Chart.pdf in the downloads section for specific gas types compatible with this Nickel Plated Brass CGA-590 fitting. Regulator Specifications Maximum Inlet Pressure: 3000 psig (20,700 kPa) Maximum Flow Rate: 5000 CFH (2360 LPM)(At 2000 psig, N2) Flow Capacity (Cv): 0.17 (without outlet valve) Operating Temperature: -20°F to 140°F (-29°C to 60°C) Porting (Regulator Body): 1/4” NPT Female Porting Configuration: 2 High, 2 Low Delivery Pressure Range: 20-500 PSIG Delivery Pressure Gauge: 0-1000 PSIG Cylinder Pressure Gauge: 0-4000 PSIG This is a Matheson Single Stage Brass regulator with a 1/4 in MNPT outlet connection (with loose 1/4 in hose barb) and 1/4 in FNPT body porting. It comes equipped with 2 inch inlet and delivery pressure gauges, outlet needle valve, Neoprene seals, chrome plated brass bonnet, and a PTFE Teflon seat. This Matheson series 18, model 18R regulator is to be used in applications requiring delivery pressures up to 500 PSIG and can accept a maximum inlet pressure of 3000 PSIG. This regulator is suitable for a variety of applications that require gasses that are 99.995% or lower purity. This regulator is not suitable for any application requiring the supply of corrosive gas (non-corrosive gas applications only). Single-Stage vs. Two-Stage Both single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When considering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applications where supply pressure will remain constant. Two-Stage regulators inherently control for variations in supply pressure while producing a constant output and therefore can be used without an operator present and in applications which require a very specific delivery pressure. The specification sheet for this series of regulator can be found in the downloadable section as a .PDF.