568-248 FEP ENCAPSULATED SILICONE

Ordered as TES70248, this is an AS568-248 red PTFE-Encapsulated Silicone 70 Shore A O-Ring built to an inside diameter of 4.734 in (120.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.012 in (127.3 mm). The 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 wide temperature swings, steam, and nearly all process chemicals. That behavior comes from the compound itself: PTFE-Encapsulated Silicone is widely chosen for chemical inertness of PTFE with the wide temperature range of silicone and a seamless PTFE jacket over a resilient silicone core. Continuous operating temperature is published at -75°F (-59.4°C) to 400°F (204.4°C).

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

Order part number TES70248, sold individually. Nominal inside diameter is listed as 4 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.