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
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 4.35 inch (110.49 mm)
Actual Outside Diameter 4.9 inch (124.46 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium