462 PTFE SOLID BACKUP RING FDA

APG stocks the TST462SO, an AS568-462 white PTFE (Teflon) 55 Shore D Back-Up Ring measuring an inside diameter of 16.455 in (417.96 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 17.005 in (431.93 mm). A back-up ring bridges the extrusion gap so the primary seal holds its shape under load.

As a material, PTFE (Teflon) delivers near-universal chemical inertness and non-stick, non-contaminating surface characteristics. The material holds up against solvents, steam, and nearly all industrial chemicals. Rated temperature range runs from -65°F (-53.9°C) to 500°F (260°C) in continuous service. Verify compatibility before use with elemental fluorine at temperature or service requiring elastic recovery.

It sees regular use in pharmaceutical and biotech, chemical processing, and food and beverage.

Reference part number TST462SO when ordering; the item is sold individually. Nominal inside diameter is listed as 16 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.