568-468 FKM 75 SQUARE CUT RINGS

SV70468 is an AS568-468 black Viton® (FKM) 70 Shore A Square-Cut Ring with an inside diameter of 19.455 in (494.16 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 20.005 in (508.13 mm). In service, this square-cut ring offers greater contact area against the gland wall than an equivalent o-ring.

This material stands up to chlorinated solvents, aromatic hydrocarbons, and petroleum oils and fuels. Viton® (FKM) offers very low compression set at elevated temperature and long service life in hot, chemically aggressive environments. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in ketones and esters or hot water and steam. The profile itself contributes simple lathe-cut manufacture at low tooling cost 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.

You will find this material specified across high-temperature process equipment, oil and gas, and semiconductor equipment.

This item is sold individually under part number SV70468. Nominal inside diameter is listed as 19 1/2 inch. Review your operating media and conditions against this specification before installation.