Elbow 90 Degrees KF-16 Vacuum Fittings, ISO-KF Flange Size NW-16, Machined, AluminumThese KF-16 90 degree elbow vacuum fittings follow ISO-KF standards and have a flange size of NW-16. 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 Machined Aluminum.KF-16 Elbow 90 DegreesISO-KF Flange Size: NW-16Common Dimensions: A = 1.6" (40mm)

Elbow 90 Degrees KF-25 Vacuum Fittings, ISO-KF Flange Size NW-25, Machined, AluminumThese KF-25 90 degree elbow vacuum fittings follow ISO-KF standards and have a flange size of 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 Machined Aluminum.KF-25 Elbow 90 DegreesISO-KF Flange Size: NW-25Common Dimensions: A = 1.97" (50mm)

Elbow 90 Degrees KF-40 Vacuum Fittings, ISO-KF Flange Size NW-40, Machined, AluminumThese KF-40 90 degree elbow vacuum fittings follow ISO-KF standards and have a flange size of NW-40. 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 Machined Aluminum.KF-40 Elbow 90 DegreesISO-KF Flange Size: NW-40Common Dimensions: A = 2.55" (65mm)