Ordered as TSP232, this is an AS568-232 white PTFE (Teflon) 55 Shore D Back-Up Ring with an inside diameter of 2.734 in (69.44 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.012 in (76.5 mm). The back-up ring allows a standard o-ring to operate at higher pressures than it could unsupported.
PTFE (Teflon) is specified here for near-universal chemical inertness and non-stick, non-contaminating surface characteristics. The compound resists solvents, steam, and nearly all industrial chemicals. The material carries a published service range of -65°F (-53.9°C) to 500°F (260°C). Verify compatibility before use with service requiring elastic recovery or molten alkali metals.
Typical settings include laboratory equipment, food and beverage, and aggressive-media pipelines.
Order part number TSP232, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 2107-232 PTFE SPIRAL B/U FDA
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 2.734 inch (69.44 mm)
Actual_OD 3.012 inch (76.5 mm)
ProductCode Description O-Rings - Backup Rings