Adapter KF-50 to ASA 2 inch, Vacuum Fittings, with O-Ring Groove, Stainless Steel
These adapters are KF-50 to ASA 2 inch vacuum fittings with and O-Ring groove. They follow ISO-KF standards and have a flange size of NW-50. They are commonly used to make connections between ISO-KF and ASA vacuum fittings. 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 stainless steel.
Adapter KF-50 to ASA 2 inch with O-Ring Groove
ISO-KF Flange Size: NW-50 to ASA 2 inch
Common Dimensions: A = 1.81" (46mm), B = 1.83" (46mm), C = 6.00" (152mm)
Groove ID (O-Ring) = 3.42"