267 PTFE SOLID BACKUP RING FDA

This back-up ring is supplied in AS568-267 white PTFE (Teflon) 55 Shore D built to an inside diameter of 8.234 in (209.14 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.512 in (216.2 mm), catalogued under part number TST267SO. It allows a standard o-ring to operate at higher pressures than it could unsupported.

PTFE (Teflon) delivers a very wide continuous service temperature range and near-universal chemical inertness. The compound resists oxidizing media, nearly all industrial chemicals, and strong acids and bases. Published continuous service range is -65°F (-53.9°C) to 500°F (260°C).

Maintenance and OEM teams specify it across chemical processing, pharmaceutical and biotech, and laboratory equipment.

Reference part number TST267SO when ordering; the item is sold individually. Nominal inside diameter is listed as 8 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.