*Q-374 FLUOROELASTOMER 75 Q RING

Ordered as QV70374, this is an AS568-374 black Viton® (FKM) 75 Shore A Quad-Ring with an inside diameter of 9.225 in (234.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.645 in (244.98 mm). The quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Viton® (FKM) offers excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. The material holds up against aggressive chemicals, chlorinated solvents, and petroleum oils and fuels. Continuous operating temperature is published at -15°F (-26.1°C) to 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.

Common environments for this compound include automotive fuel systems, high-temperature process equipment, and semiconductor equipment.

This item is sold individually under part number QV70374. Nominal inside diameter is listed as 9 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.