*2107-336 PTFE SPIRAL B/U FDA

The TSP336 is an AS568-336 white PTFE (Teflon) 55 Shore D Back-Up Ring measuring an inside diameter of 2.85 in (72.39 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.27 in (83.06 mm). This back-up ring bridges the extrusion gap so the primary seal holds its shape under load.

PTFE (Teflon) is specified here for one of the lowest coefficients of friction of any solid and non-stick, non-contaminating surface characteristics. It resists steam, solvents, and strong acids and bases. The material carries a published service range of -65°F (-53.9°C) to 500°F (260°C).

Common environments for this compound include pharmaceutical and biotech, chemical processing, and aggressive-media pipelines.

Reference part number TSP336 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 7/8 inch. Review your operating media and conditions against this specification before installation.