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Product ID : QF2025ASRB
QF2025ASRB Adaptive Centering Ring Assembly, Material=304 Stainless, Brand=Buna-N, A=1.02, B=0.87, C=0.81, NW Flange Size=20 to 25
Description
More details on associated web pages:
Adaptive Centering Ring Assembly, 304 Stainless and Aluminum
Available with Viton® or Buna O-ring, this reducing centering ring is for joining two different size NW flanges with a quick flange clamp.NW Vacuum Fittings
(Catalog F64)

Industry standard die-cast aluminum clamp.

These aluminum hose nipples have longer stems for better multiple clamping of vacuum hose. Other sizes and lengths can be custom manufactured by S.I.S.