568-447 FEP ENCAPSULATED SILICONE

APG stocks the TES70447, an AS568-447 red PTFE-Encapsulated Silicone 70 Shore A O-Ring supplied with an inside diameter of 8.975 in (227.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.525 in (241.94 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. This item is further identified as ORING 70 Durometer.

PTFE-Encapsulated Silicone is specified here for chemical inertness of PTFE with the wide temperature range of silicone and excellent recovery across extreme temperature cycling. Expect good resistance to wide temperature swings, strong acids and solvents, and steam. The material carries a published service range of -75°F (-59.4°C) to 400°F (204.4°C).

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

TES70447 ships individually. Nominal inside diameter is listed as 9 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.