568-155 FKM 75 SQUARE CUT RINGS

The SV70155 is an AS568-155 black Viton® (FKM) 70 Shore A square profile Quad-Ring measuring an inside diameter of 3.987 in (101.27 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.193 in (106.5 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.

Viton® (FKM) is specified here for excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. The material holds up against aromatic hydrocarbons, engine and transmission fluids, and aggressive chemicals. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with amines or low-molecular-weight organic acids.

It sees regular use in aerospace, automotive fuel systems, and chemical processing.

Reference part number SV70155 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 inch. Check the compound against your process media, pressure and temperature before committing to a design.