*568-391 FEP ENCAPSULATED SILICONE

Part number TES70391 is an AS568-391 red PTFE-Encapsulated Silicone 70 Shore A O-Ring measuring an inside diameter of 21.953 in (557.61 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 22.373 in (568.27 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: ORING 70 Durometer.

Expect good resistance to strong acids and solvents, nearly all process chemicals, and steam. PTFE-Encapsulated Silicone is widely chosen for excellent recovery across extreme temperature cycling and strong resistance to permeation. Continuous operating temperature is published at -75°F (-59.4°C) to 400°F (204.4°C). It should not be specified for service in tight-radius dynamic flexing or installation over sharp edges.

Maintenance and OEM teams specify it across cryogenic and high-temperature equipment, food and beverage processing, and chemical processing.

TES70391 ships individually. Nominal inside diameter is listed as 22 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.