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Category: ISO Seal St. Steel inner ring

The centering ring, enclosing a rubber elastomeric O-ring, establishes a vacuum seal between two mating ISO-K or ISO-F flange faces. ISO-K fittings, aided by claw clamps, can be swiftly assembled in any orientation, with the clamp securely fitting into a ridged groove on the back side of the ISO-K flange. In contrast, ISO-F fixed flange vacuum fittings differ, featuring a bolt circle where bolts align the two flanges. ISO seals are rated for a vacuum range of 10-8 mBar. These Centering Rings incorporate a metal support ring with an elastomer seal, and certain ones are designed with an additional metal Outer Ring. They are also recognized as ISO-K centering rings without outer rings.

Dimensions DN63 – DN630
Operating °C: -60 °C – 200 °C
Pressure range: 10-7 mbar – 2.5 bar
Seal: EPDM, FFKM, Neoprene, Perbunan, Silicone, Viton

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