Q-441 FLUOROELASTOMER 75 Q RING

QV70441 is an AS568-441 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 6.975 in (177.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 7.525 in (191.14 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

Viton® (FKM) is specified here for long service life in hot, chemically aggressive environments, excellent resistance to compression set and permeation. Expect good resistance to many acids, engine and transmission fluids, and chlorinated solvents. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Exposure to ketones and esters or hot water and steam will shorten service life. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and two sealing bands per contact face rather than one.

Common environments for this compound include semiconductor equipment, oil and gas, and chemical processing.

This item is sold individually under part number QV70441. Unit weight is approximately 41.316 g and nominal inside diameter is listed as 7 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.