Brand-New Welch 2014 Chemical Duty PTFE Dry Diaphragm Vacuum Pump DryFast Collegiate, 1 phase 115/VAC 60hz. 2014B-01 Preserve your budget while enjoying the advantages of a Welch DRYFAST vacuum pump. Chemical resistant Collegiate Model 2014 pump is perfect for MeCl2 and other volatile solvent rotary evaporations. Achieve precise vacuum control down to 40 torr using convenient adjustment knob. 25 lpm flow enables multi-user use for organic solvent filtrations and other routine chemistry lab operations – while enabling fume discharge to your hood. Modern, compact design weighs only 15 lbs. Buy the DRYFAST® pump for the vacuum levels you need. Lower vacuum levels are required to drive evaporation of volatile solvents. Use solvent volatility criteria above to size your pump for safe, high-yield evaporations at 35° C. Ranges of Application: • Harsh Chemical Fume Applications> • Small, lightweight, oil-free, low maintenance> • Precision vacuum adjustment feature>

Brand-New Welch 2034 DryFast Chemical Duty PTFE Dry Diaphragm Vacuum Pump, with built in vacuum regulator, Research, 2034B-01 Preserve your budget while enjoying the advantages of a Welch DRYFAST vacuum pump. Chemical resistant Research Model 2034 pump is perfect for MeCl2 and other volatile solvent rotary evaporations. Achieve precise vacuum control down to 9 torr using convenient adjustment knob. Includes built in vacuum regulator with 25 lpm flow enabling multi-user use for organic solvent filtrations and other routine chemistry lab operations. This allows fume discharge to your hood. Modern, compact design weighs only 21.3 lbs. Buy the DRYFAST® pump for the vacuum levels you need. Lower vacuum levels are required to drive evaporation of volatile solvents. Use solvent volatility criteria above to size your pump for safe, high-yield evaporations at 35° C. Operating voltage range 100-230 VAC, 50/60Hz. Ranges of Application: • Harsh Chemical Fume Applications> • Small, lightweight, oil-free, low maintenance> • Precision vacuum adjustment feature>

New Welch 2054 High Capacity DRY Diaphragm Pump w/ PTFE Contact Surfaces, PN 2054B-01 The Welch-Ilmvac 2054B-01 is a powerful, dry, chemical duty vacuum pump. It is very high capacity with a strong flow of 100 lit/min, along with the deep ultimate vacuum of 6 Torr, makes this quiet diaphragm pump the perfect vacuum oven pump. The Welch Ilmvac chemical duty pumps can be used for any harsh chemical service. The Ilmvac PTFE pumps are designed for quick and easy, infrequent maintenance. The Welch Ilmvac PTFE pumps are light weight and quiet diaphragm membrane vacuum pumps providing excellent performance for rotary evaporators, vacuum ovens, degassing, mixing and networked vacuum projects .Use these powerful dry diaphragm vacuum pumps for vacuum applications requiring high flow. Welch Ilmvac Chemical Resistant pumps are ideal for scale-up operations. This Welch PTFE pump has 4 heads. 115V 60HZ. 6 TORR 97 LPM.Ranges of Application:• Harsh Chemical Fume Applications.• Small, lightweight, oil-free, low maintenance.• Pilot plant, light applications.

New Welch 2067 High Capacity DRY Diaphragm Pump w/ PTFE Contact Surfaces, PN 2067B-01 The Welch-Ilmvac 2067B-01 is a powerful, dry, chemical duty vacuum pump. It is very high capacity with a strong flow of 221 lit/min, along with the deep ultimate vacuum of 56 Torr, makes this quiet diaphragm pump the perfect vacuum oven pump. The Welch Ilmvac chemical duty pumps can be used for any harsh chemical service. The Ilmvac PTFE pumps are designed for quick and easy, infrequent maintenance. The Welch Ilmvac PTFE pumps are light weight and quiet diaphragm membrane vacuum pumps providing excellent performance for rotary evaporators, vacuum ovens, degassing, mixing and networked vacuum projects .Use these powerful dry diaphragm vacuum pumps for vacuum applications requiring high flow. Welch Ilmvac Chemical Resistant pumps are ideal for scale-up operations. This Welch PTFE pump has 4 heads. 115V 60HZ. 58 TORR 221 LPM.Ranges of Application:• Harsh Chemical Fume Applications.• Small, lightweight, oil-free, low maintenance.• Pilot plant, light applications.

Welch CHEMSTAR Dry, Chemical, Oil-Free High Vacuum Pump Ultimate Pressure 0.50 Torr, Flow 4.94 cfm, 115V 1ph. PN: 2070B-01 The Welch CHEMSTAR Dry Model 2070 is Welch’s revolutionary new dry vacuum solution for demanding deep vacuum chemical process needs. This automated system easily handles your most challenging vacuum applications while saving both time and expense. Pump corrosive gases with ChemStar Dry to eliminate pump oil changes and the ritual of cold trapping. The Welch CHEMSTAR Dry Model 2070 delivers ~ 150 l/min (5.3 CFM) pumping speed at 0.2 to 20 torr the process power zone never before attainable with an economical dry vacuum pump. ChemStar Dry comes ready to plug and play with a 115V plug. thread adapters for both intake and exhaust, weighs 50 lbs., and has dimensions LxWxH, 18x8.5x18.5 in. ChemStar Dry’s integrated multistage pumping mechanism is software driven and fully chemical resistant. Vapor load optimization and system self-cleaning are electronically controlled. High gas flow and the deep vacuum needed for demanding processes are now available in a compact unit about the size of a tower PC. NOTE: INCLUDES HARDWARE CONNECTION