568-437 FKM 75 SQUARE CUT RINGS

APG stocks the SV70437, an AS568-437 black Viton® (FKM) 70 Shore A Square-Cut Ring with an inside diameter of 5.975 in (151.77 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.525 in (165.74 mm). A square-cut ring presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.

As a material, Viton® (FKM) is known for outstanding high-temperature capability and very low compression set at elevated temperature. Expect good resistance to chlorinated solvents, many acids, and aromatic hydrocarbons. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. The profile itself contributes a rectangular section that will not roll in the groove and greater resistance to extrusion than a round section of the same size. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

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

SV70437 ships individually. Nominal inside diameter is listed as 6 inch. Review your operating media and conditions against this specification before installation.