Q-338 FLUOROELASTOMER 75 Q RING

QV70338 is an AS568-338 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 3.1 in (78.74 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.52 in (89.41 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Viton® (FKM) is specified here for outstanding high-temperature capability and very low compression set at elevated temperature. Expect good resistance to aggressive chemicals, aromatic hydrocarbons, and petroleum oils and fuels. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). The profile itself contributes two sealing bands per contact face rather than one and lower compressive load required to achieve a seal.

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

Order part number QV70338, sold individually. Unit weight is approximately 12.22 g and nominal inside diameter is listed as 3 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.