568-238 FKM 75 SQUARE CUT RINGS

Ordered as SV70238, this is an AS568-238 black Viton® (FKM) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 3.484 in (88.49 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.762 in (95.55 mm). The quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Viton® (FKM) delivers the industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. Expect good resistance to petroleum oils and fuels, engine and transmission fluids, and aggressive chemicals. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or ketones and esters call for a different compound.

Common environments for this compound include chemical processing, oil and gas, and high-temperature process equipment.

SV70238 ships individually. Nominal inside diameter is listed as 3 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.