Q-267 FLUOROELASTOMER 75 Q RING

This quad-ring is supplied in AS568-267 black Viton® (FKM) 75 Shore A built to an inside diameter of 8.234 in (209.14 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.512 in (216.2 mm), catalogued under part number QV70267. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Viton® (FKM) delivers excellent resistance to compression set and permeation, very low compression set at elevated temperature. This material stands up to engine and transmission fluids, petroleum oils and fuels, and chlorinated solvents. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or amines call for a different compound. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.

You will find this material specified across oil and gas, chemical processing, and automotive fuel systems.

Stocked as QV70267 and sold individually. Nominal inside diameter is listed as 8 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.