This o-ring is supplied in AS568-048 black PTFE-Encapsulated Viton® 90 Shore A with an inside diameter of 4.739 in (120.37 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.879 in (123.93 mm), catalogued under part number TEV80048. It creates a positive seal at flange, piston and rod interfaces without added hardware.
The compound resists steam, nearly all process chemicals, and aggressive oxidizers. That behavior comes from the compound itself: PTFE-Encapsulated Viton® is valued for long service life in aggressive chemical duty and a seamless PTFE jacket over a resilient elastomer core. Service temperature is rated from -75°F (-59.4°C) through 400°F (204.4°C).
It sees regular use in aggressive-media valves and pumps, food and beverage, and pharmaceutical manufacturing.
Reference part number TEV80048 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 3/4 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 *048 VITON ENCAPSULATED ORING
Actual_ID 4.739 inch (120.37 mm)
Actual_CS 0.07 inch (1.78 mm)
Actual_OD 4.879 inch (123.93 mm)
ProductCode Description O-Rings - Bulk - Premium