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 Fluorine rubber 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 fittings are made of corrosive resistant stainless steel.
C Clamps, KF (NW) Components, Vacuum Hardware
Wholesale Blank Flange, NW-100 Vacuum Fittings, ISO-LF Large Flange Size NW-100, Stainless Steel
These blank flanges follow International Standards Organization (ISO) standards and have a flange size of NW-100.
$13.00 $29.99




Half Nipple - Long, KF 16 (NW 16), Stainless Steel
Half Nipple - Long, KF 10 (NW 10), Stainless Steel
Half Nipple - Long, KF 50 (NW 50), Stainless Steel
Half Nipple - Long, KF 40 (NW 40), Stainless Steel
Wholesale 6.3" Bored Blank Flange, Stainless Steel, KF160 (NW160)
ISO Centering Ring, ISO 80, Stainless Steel
Stainless Steel 316,KF-16 Vacuum Bellows Hose, 40 Inch, Flexible Coupling, ISO-KF Flange Size NW-16
Wholesale 3" Bored Blank Flange, Stainless Steel, KF80 (NW80)
Flexible Hose Coupling, Unbraided Vacuum Hose, KF 16 (NW 16), Stainless Steel Vacuum Fitting, 20", 500mm
NW/KF40 Aluminum Flange Clamp + Centering O-rings with Fluorine Rubber
Flexible Hose Coupling, Unbraided Vacuum Hose, KF 16 (NW 16), Stainless Steel Vacuum Fitting, 40", 1000mm
ISO Centering Ring, ISO 200, Stainless Steel
ISO Centering Ring, ISO 100, Stainless Steel 







