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Out of Stock   Kalrez Centering Ring, KF-40 Vacuum Fittings, ISO-KF Flange Size NW-40, Stainless Steel 283.2
Anticipated Arrival:  5 on 2020-04-30
RoHS Compliance Sticker


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Kalrez Centering Ring, KF-40 Vacuum Fittings, ISO-KF Flange Size NW-40, Stainless Steel

Chemical Resistant Kalrez Centering Ring, KF-40 Vacuum Fittings, ISO-KF Flange Size Vacuum Fitting NW-40
Stainless Steel With Kalrez O-Ring

These KF-40 centering ring vacuum fittings are supplied with chemical resistant Kalrez 6375 O-ring material and are designed for use with standards ISO-KF 40 (NW-40) vacuum fittings. The O-ring material, Kalrez 6375, is a Perfluoroelastomer (FFKM) well known for its excellent chemical resistance when handling amines, acids, bases, and other aggressive chemicals while also having excellent resistance to heat (525F/275C) and steam. Kalrez 6375 is considered to have the widest possible operating range of chemicals and operational temperatures applicable for a variety of applications which makes it a popular choice for use in high-technology vacuum areas.

These KF-40 centering rings are commonly used to build fore-line vacuum piping inside chemical process systems, semiconductor, oil, and gas connections. 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, chemical resistant Kalrez 6375 material. 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. Kalrez is a Perfluoroelastomer (FFKM) and registered trademark of DuPont Performance Elastomers.

KF-40 Centering Ring with Kalrez O-Ring
ISO-KF Flange Size: NW-40

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PDF Logo RoHS Compliance Download

PDF Logo Kalrez 6375 Brochure.pdf

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Ideal Vacuum Logo Water Mark
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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