This o-ring is supplied in AS568-470 black PTFE-Encapsulated Viton® 90 Shore A supplied with an inside diameter of 20.955 in (532.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 21.505 in (546.23 mm), catalogued under part number TEV80470. It creates a positive seal at flange, piston and rod interfaces without added hardware.
PTFE-Encapsulated Viton® is specified for chemical inertness of PTFE with the memory of a rubber o-ring and a seamless PTFE jacket over a resilient elastomer core. The compound resists nearly all process chemicals, steam, and aggressive oxidizers. Service temperature is rated from -75°F (-59.4°C) through 400°F (204.4°C). It is not the right choice where service requiring tight-radius dynamic flexing or installation over sharp edges without care are present.
Typical settings include aggressive-media valves and pumps, chemical processing, and pharmaceutical manufacturing.
Stocked as TEV80470 and sold individually. Nominal inside diameter is listed as 21 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 568-470 FEP ENCAPSULATED VITON ORING
uf_description2 90 DUROMETER
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 20.955 inch (532.26 mm)
Actual_OD 21.505 inch (546.23 mm)
ProductCode Description O-Rings - Bulk - Premium