*568-344 FEP ENCAPSULATED SILICONE

APG stocks the TES70344, an AS568-344 red PTFE-Encapsulated Silicone 70 Shore A O-Ring measuring an inside diameter of 3.85 in (97.79 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.27 in (108.46 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint. This item is further identified as ORING 70 Durometer.

The material holds up against steam, strong acids and solvents, and wide temperature swings. PTFE-Encapsulated Silicone offers a non-contaminating, non-stick sealing surface and a seamless PTFE jacket over a resilient silicone core. Published continuous service range is -75°F (-59.4°C) to 400°F (204.4°C). Applications involving tight-radius dynamic flexing or installation over sharp edges call for a different compound.

It sees regular use in cryogenic and high-temperature equipment, pharmaceutical manufacturing, and chemical processing.

Reference part number TES70344 when ordering; the item is sold individually. Nominal inside diameter is listed as 3 7/8 inch. Review your operating media and conditions against this specification before installation.