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Centering Ring Adaptive KF20 to KF25 Vacuum Fittings, ISO-KF Flange Size NW-20 to NW-25

Print Version
Part Number:
  Against Product Defect

Available Now:  250  

Sale: $13.94

Centering Ring Adaptive KF20 to KF25 Vacuum Fittings, ISO-KF Flange Size NW-20 to NW-25 13.944
Expecting:   16
Anticipated Arrival:  16 on 2021-11-19



Centering Ring Adaptive KF-20 to KF-25 Vacuum Fittings, ISO-KF Flange Size NW-20 to NW-25, Stainless Steel with VitonŽ O-ring.

These KF-20 to KF-25 Centering Ring Adaptive vacuum fittings follow ISO-KF standards and have a flange size of NW-20 to 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 corrosive resistant stainless steel with VitonŽ O-Ring. VitonŽ is well known for its excellent resistance to heat (400°F/200°C) and to aggressive fuels and chemicals. VitonŽ is a registered trademark of DuPont Performance Elastomers.

KF-20 to KF-25 Centering Ring Adaptive with VitonŽ O-ring
ISO-KF Flange Size: NW-20 to NW-25
These adaptive centering rings are for obsolete bore sizes.


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Ideal Vacuum Products, LLC
5910 Midway Park Blvd NE,
Albuquerque, NM 87109-5805

Phone: (505) 872-0037
Fax: (505) 872-9001

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