These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flages are made of corrosive stainless steel.Half Nipple, NW-63 Vacuum Fittings, ISO-LF Large Flange Size NW-63, Stainless Steel

These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flages are made of corrosive stainless steel.Half Nipple, NW-80 Vacuum Fittings, ISO-LF Large Flange Size NW-80, Stainless Steel

These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flages are made of corrosive stainless steel.Half Nipple, NW-100 Vacuum Fittings, ISO-LF Large Flange Size NW-100, Stainless Steel

These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flages are made of corrosive stainless steel.Half Nipple, NW-160 Vacuum Fittings, ISO-LF Large Flange Size NW-160, Stainless Steel

These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flages are made of corrosive stainless steel.Half Nipple, NW-200 Vacuum Fittings, ISO-LF Large Flange Size NW-200, Stainless Steel

These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flages are made of corrosive stainless steel.Half Nipple, NW-250 Vacuum Fittings, ISO-LF Large Flange Size NW-250, Stainless Steel

These half nipple weld stubs 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 Viton® centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum flanges are made of stainless steel. Half Nipple, NW-320 Vacuum Fittings, ISO-LF Large Flange Size NW-320, Stainless Steel