The TEV80424 is an AS568-424 black PTFE-Encapsulated Viton® 90 Shore A O-Ring supplied with an inside diameter of 4.35 in (110.49 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.9 in (124.46 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, PTFE-Encapsulated Viton® is specified for chemical inertness of PTFE with the memory of a rubber o-ring, excellent resistance to permeation and contamination. It resists strong acids and solvents, aggressive oxidizers, and nearly all process chemicals. 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.
You will find this material specified across semiconductor equipment, aggressive-media valves and pumps, and chemical processing.
Reference part number TEV80424 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 3/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description 568-424 FEP ENCAPSULATED VITON ORING
uf_description2 90 DUROMETER
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 4.35 inch (110.49 mm)
Actual_OD 4.9 inch (124.46 mm)
ProductCode Description O-Rings - Bulk - Premium