Q-321 FLUOROELASTOMER 75 Q RING

The QV70321 is an AS568-321 black Viton® (FKM) 75 Shore A Quad-Ring supplied with an inside diameter of 1.162 in (29.51 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.582 in (40.18 mm). This quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Viton® (FKM) is specified here for very low compression set at elevated temperature and long service life in hot, chemically aggressive environments. Expect good resistance to aromatic hydrocarbons, petroleum oils and fuels, and chlorinated solvents. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

You will find this material specified across high-temperature process equipment, automotive fuel systems, and aerospace.

This item is sold individually under part number QV70321. Nominal inside diameter is listed as 1 3/16 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.