-050 BLACK FKM 70D SQUARE RING

The SV70050 is an AS568-050 black Viton® (FKM) 70 Shore A Square-Cut Ring measuring an inside diameter of 5.239 in (133.07 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 5.379 in (136.63 mm). This square-cut ring resists the spiral failure that affects round rings on long reciprocating strokes.

This material stands up to aggressive chemicals, many acids, and aromatic hydrocarbons. Viton® (FKM) is specified for the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). The profile itself contributes a rectangular section that will not roll in the groove and a flat contact band that spreads sealing load across a wider area. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

It sees regular use in semiconductor equipment, high-temperature process equipment, and automotive fuel systems.

This item is sold individually under part number SV70050. As always, verify media compatibility and operating conditions against the requirements of your specific application.