Reducer Cross KF-40 to KF-25 Vacuum Fittings, ISO-KF Flange Size NW-40 to NW-25, Stainless Steel
Reducer Cross KF-40 to KF-25 Vacuum Fittings, ISO-KF Flange Size NW-40 to NW-25, Stainless Steel

These KF-40 to KF-25 Reducer Cross vacuum fittings follow ISO-KF standards and have a flange size of NW-40 to NW-25. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of corrosive resistant 304 stainless steel.

Reducer Cross KF-40 to KF-25
ISO-KF Flange Size: NW-40 to NW-25
Common Dimensions: A= 5.12" (130mm), B= 2.22" (58mm)
Product: Reducer Cross KF-40 to KF-25 Vacuum Fittings, ISO-KF Flange Size NW-40 to NW-25, Stainless Steel
Condition:      New
Warranty:     Against Product Defect
Part Number: P102656
Price: $236.62