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KF Seals

KF Centering Rings
We offer aluminum and stainless steel centering rings for KF flanges. Following sealing materials are available: Perbunan, Buna, Silicone, Viton, EPDM, Neoprene and FFKM. KF seals are also available with outer centering ring.
The name KF (for Klein Flansche) was adopted by ISO, DIN, and Pneurop standards organizations. It is also called QF, NW, and DN. The flange is sized by the largest nominal tube I.D. (mm) that can be welded to it. Standards sizes are: KF16, KF25, KF40, and KF50. Intermediate sizes KF10, KF20 and KF32 are not so common and do only have a smaller bore size than the mating KF16, KF25 and KF40.
datasheet datasheet: KF Seals
datasheet datasheet: KF Seals 2

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