Q-373 FLUOROELASTOMER 75 Q RING

This quad-ring is supplied in AS568-373 black Viton® (FKM) 75 Shore A with an inside diameter of 8.975 in (227.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.395 in (238.63 mm), catalogued under part number QV70373. It resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Expect good resistance to chlorinated solvents, many acids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) delivers outstanding high-temperature capability and long service life in hot, chemically aggressive environments. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Applications involving hot water and steam or low-molecular-weight organic acids call for a different compound. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.

Typical settings include automotive fuel systems, chemical processing, and high-temperature process equipment.

This item is sold individually under part number QV70373. Nominal inside diameter is listed as 9 inch. Review your operating media and conditions against this specification before installation.