This o-ring is supplied in AS568-144 black PTFE-Encapsulated Viton® 90 Shore A measuring an inside diameter of 2.487 in (63.17 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.693 in (68.4 mm), catalogued under part number TEV80144. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
PTFE-Encapsulated Viton® is widely chosen for a non-stick sealing surface that resists fouling and chemical inertness of PTFE with the memory of a rubber o-ring. The compound resists steam, strong acids and solvents, and nearly all process chemicals. Service temperature is rated from -75°F (-59.4°C) through 400°F (204.4°C). Applications involving service requiring tight-radius dynamic flexing or installation over sharp edges without care call for a different compound.
Common environments for this compound include aggressive-media valves and pumps, food and beverage, and pharmaceutical manufacturing.
TEV80144 ships individually. Nominal inside diameter is listed as 2 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Description 568-144 FEP ENCAPSULATED VITON ORING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 2.487 inch (63.17 mm)
Actual Outside Diameter 2.693 inch (68.4 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium