ISO Outer / Inner Ring Centering Ring w/O-Ring is available in the following sizes: ISO 63, ISO 80, ISO 100, ISO 160, ISO 200, ISO 250, ISO 320, ISO 400, ISO 500. ISO Outer / Inner Ring Centering Ring w/O-Ring is made out of Aluminum, Stainless Steel , Viton. ISO Flange Series are comprised of two smooth face flanges clamped together with a combination of metal centering rings, and elastomeric O-Rings.
