This o-ring is supplied in AS568-044 black PTFE-Encapsulated Viton® 90 Shore A built to an inside diameter of 3.739 in (94.97 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.879 in (98.53 mm), catalogued under part number TEV80044. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, PTFE-Encapsulated Viton® is known for long service life in aggressive chemical duty and a seamless PTFE jacket over a resilient elastomer core. This material stands up to nearly all process chemicals, aggressive oxidizers, and strong acids and solvents. Published continuous service range is -75°F (-59.4°C) to 400°F (204.4°C). Applications involving installation over sharp edges without care or service requiring tight-radius dynamic flexing call for a different compound.
It sees regular use in aggressive-media valves and pumps, food and beverage, and pharmaceutical manufacturing.
This item is sold individually under part number TEV80044. Nominal inside diameter is listed as 3 3/4 inch. Review your operating media and conditions against this specification before installation.
Description *568-044 FEP ENCAPSULATED VITON ORING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 3.739 inch (94.97 mm)
Actual Outside Diameter 3.879 inch (98.53 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium