Adapter KF-25 to 1/2 in. NPT-Male, ISO-KF Flange Size NW-25, Stainless Steel
Adapter KF-25 to 1/2 in. NPT-Male, ISO-KF Flange Size NW-25, Stainless Steel

These adapters are KF-25 to 1/2 inch NPT-male. The flange size follows ISO-KF standards and is NW-25. They are commonly used to make connections between ISO-KF fittings and 1/2 inch NPT-female fittings. The ISO-KF flanges 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 Stainless Steel.

Adapter KF-25 to 1/2 in. NPT-Male, ISO-KF Flange Size NW-25, Stainless Steel
Flange Size: ISO-KF NW-25
Pipe Thread Size: 1/2 in. NPT-Male
Common Dimensions: A = 1.6" (41mm), B = .39" (10mm)
Product: Adapter KF-25 to 1/2 in. NPT-Male, ISO-KF Flange Size NW-25, Stainless Steel
Condition:      New
Warranty:     Against Product Defect
Part Number: P101972
Price: $79.08