Q-448 FLUOROELASTOMER 75 Q RING

Part number QV70448 is an AS568-448 black Viton® (FKM) 75 Shore A Quad-Ring built to an inside diameter of 9.475 in (240.67 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 10.025 in (254.64 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

As a material, Viton® (FKM) delivers long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. The compound resists petroleum oils and fuels, aromatic hydrocarbons, and engine and transmission fluids. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Verify compatibility before use with ketones and esters or amines. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Typical settings include high-temperature process equipment, aerospace, and chemical processing.

Reference part number QV70448 when ordering; the item is sold individually. Unit weight is approximately 59.551 g and nominal inside diameter is listed as 9 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.