APG stocks the TES70353, an AS568-353 red PTFE-Encapsulated Silicone 70 Shore A O-Ring with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.395 in (137.03 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Supplementary detail from the product record: ORING 70 Durometer.
It resists nearly all process chemicals, wide temperature swings, and strong acids and solvents. PTFE-Encapsulated Silicone offers a non-contaminating, non-stick sealing surface and chemical inertness of PTFE with the wide temperature range of silicone. Rated temperature range runs from -75°F (-59.4°C) to 400°F (204.4°C) in continuous service. Exposure to tight-radius dynamic flexing or installation over sharp edges will shorten service life.
It sees regular use in chemical processing, food and beverage processing, and cryogenic and high-temperature equipment.
Order part number TES70353, sold individually. Nominal inside diameter is listed as 5 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 568-353 FEP ENCAPSULATED SILICONE
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 4.975 inch (126.37 mm)
Actual Outside Diameter 5.395 inch (137.03 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium