This o-ring is supplied in AS568-443 black PTFE-Encapsulated Viton® 90 Shore A with an inside diameter of 7.475 in (189.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.025 in (203.84 mm), catalogued under part number TEV80443. It remains the most cost-effective sealing element available for pressurized assemblies.
PTFE-Encapsulated Viton® is specified here for seamless PTFE jacket over a resilient elastomer core and chemical inertness of PTFE with the memory of a rubber o-ring. Expect good resistance to steam, aggressive oxidizers, and strong acids and solvents. Published continuous service range is -75°F (-59.4°C) to 400°F (204.4°C). Exposure to installation over sharp edges without care or service requiring tight-radius dynamic flexing will shorten service life.
Typical settings include food and beverage, pharmaceutical manufacturing, and aggressive-media valves and pumps.
Stocked as TEV80443 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 568-443 FEP ENCAPSULATED VITON ORING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 7.475 inch (189.87 mm)
Actual Outside Diameter 8.025 inch (203.84 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium