Q-281 FLUOROELASTOMER 75 Q RING

APG stocks the QV70281, an AS568-281 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 14.984 in (380.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 15.262 in (387.65 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Viton® (FKM) is known for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. The compound resists chlorinated solvents, aromatic hydrocarbons, and many acids. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Applications involving amines or hot water and steam call for a different compound. The profile itself contributes two sealing bands per contact face rather than one and lower compressive load required to achieve a seal.

You will find this material specified across high-temperature process equipment, automotive fuel systems, and chemical processing.

Order part number QV70281, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.