Adapter KF-25 to 4 VCR Female, ISO-KF Flange Size NW-25, Stainless Steel
These adapters are KF-25 to 4 VCR female. The flange size follows ISO-KF standards and is NW-25. They are commonly used to make connections between ISO-KF fittings and VCR Tubing. 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. VCRŽ is a registered trademark brand name of tube fitting providing by The Swagelok Company.
Adapter KF-25 to 4 VCR female, ISO-KF Flange Size NW-25, Stainless Steel
Flange Size: ISO-KF NW-25
Tubing Size: 4 VCR (1/4 inch)
Common Dimensions: A = 1.40" (36mm), B = .19" (5mm)