568-221 FEP ENCAPSULATED SILICONE

This o-ring is supplied in AS568-221 red PTFE-Encapsulated Silicone 70 Shore A measuring an inside diameter of 1.421 in (36.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.699 in (43.15 mm), catalogued under part number TES70221. It delivers dependable bidirectional sealing in a compact groove envelope. This item is further identified as ORING 70 Durometer.

Expect good resistance to steam, nearly all process chemicals, and strong acids and solvents. PTFE-Encapsulated Silicone offers strong resistance to permeation and a non-contaminating, non-stick sealing surface. Rated temperature range runs from -75°F (-59.4°C) to 400°F (204.4°C) in continuous service. It should not be specified for service in installation over sharp edges or tight-radius dynamic flexing.

You will find this material specified across food and beverage processing, cryogenic and high-temperature equipment, and chemical processing.

Order part number TES70221, sold individually. Nominal inside diameter is listed as 1 7/16 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.