Q-034 FLUOROELASTOMER 75 Q RING

Ordered as QV70034, this is an AS568-034 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 2.114 in (53.7 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.254 in (57.25 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Expect good resistance to petroleum oils and fuels, aggressive chemicals, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) is valued for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in amines or hot water and steam. 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, semiconductor equipment, and chemical processing.

Reference part number QV70034 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.