- A: 2.16 in / 55 mm
- B: 1.57 in / 40 mm
- C: 2.75 in / 70 mm
These KF-40 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. 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.
KF-40 Vacuum Fittings, ISO-KF Flange Size NW-40, Stainless Steel
*Applications: Used in building piping systems, aerospace, automotive, chemical processing, food and beverage, foreline vacuum piping and process systems.
*Material: Stainless steel, very durable and can be processed neatly.
*ISO-KF flange size: KF40-70mm
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