Centering Ring O-Ring Replacement, BUNA, ISO-63 Vacuum Fitting, ISO MF LF Flange Size NW-63 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-63. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: –55° to 120°C (–65° to 248°F) O-Ring BUNA, for NW-63 Centering Ring, ISO-LF Flange Size: NW-63 Common Dimensions: ID = 2.85 (72mm)

Centering Ring O-Ring Replacement, BUNA, ISO-80 Vacuum Fitting, ISO MF LF Flange Size NW-80 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-80. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: –55° to 120°C (–65° to 248°F) O-Ring, BUNA for NW-80 Centering Ring, ISO-LF Flange Size: NW-80 Common Dimensions: ID = 3.35 (85mm)

Centering Ring O-Ring Replacement, BUNA, ISO-100 Vacuum Fitting, ISO MF LF Flange Size NW-100 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-100. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: –55° to 120°C (–65° to 248°F) O-Ring, BUNA for NW-100 Centering Ring, ISO-LF Flange Size: NW-100 Common Dimensions: ID = 4.10 (104mm)

Centering Ring O-Ring Replacement, BUNA, ISO-160 Vacuum Fitting, ISO MF LF Flange Size NW-160 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-160. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-160 Centering Ring, ISO-LF Flange Size: NW-160 Common Dimensions: ID = 6.22 (158mm)

Centering Ring O-Ring Replacement, BUNA, ISO-200 Vacuum Fitting, ISO MF LF Flange Size NW-200 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-200. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-200 Centering Ring, ISO-LF Flange Size: NW-200 Common Dimensions: ID = 8.19 (208mm)

Centering Ring O-Ring Replacement, BUNA, ISO-250 Vacuum Fitting, ISO MF LF Flange Size NW-250 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-250. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-250 Centering Ring, ISO-LF Flange Size: NW-250 Common Dimensions: ID = 9.96 (253mm)

Centering Ring O-Ring Replacement, BUNA, ISO-320 Vacuum Fitting, ISO MF LF Flange Size NW-320 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-320. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-320 Centering Ring, ISO-LF Flange Size: NW-320 Common Dimensions: ID = 12.95 (329mm)

Centering Ring O-Ring Replacement, BUNA, ISO-400 Vacuum Fitting, ISO MF LF Flange Size NW-400 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-400. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-400 Centering Ring, ISO-LF Flange Size: NW-400 Common Dimensions: ID = 15.94 (405mm)

Centering Ring O-Ring Replacement, BUNA, ISO-500 Vacuum Fitting, ISO MF LF Flange Size NW-500 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-500. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-500 Centering Ring, ISO-LF Flange Size: NW-500 Common Dimensions: ID = 19.92 (506mm)

Centering Ring O-Ring Replacement, BUNA, ISO-630 Vacuum Fitting, ISO MF LF Flange Size NW-630 These BUNA Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-630. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. They are made of BUNA. Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight. Temperature Range: �55� to 120�C (�65� to 248�F) O-Ring, BUNA for NW-630 Centering Ring, ISO-LF Flange Size: NW-630 Common Dimensions: ID = 25.90 (658mm)