Q-395 FLUOROELASTOMER 75 Q RING

QV70395 is an AS568-395 black Viton® (FKM) 75 Shore A Quad-Ring built to an inside diameter of 25.94 in (658.88 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 26.36 in (669.54 mm). In service, this quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

This material stands up to chlorinated solvents, aggressive chemicals, and many acids. That behavior comes from the compound itself: Viton® (FKM) offers excellent resistance to compression set and permeation, very low compression set at elevated temperature. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with hot water and steam or ketones and esters. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and two sealing bands per contact face rather than one.

It sees regular use in oil and gas, high-temperature process equipment, and automotive fuel systems.

Order part number QV70395, sold individually. Nominal inside diameter is listed as 26 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.