This o-ring is supplied in AS568-441 white PTFE (Teflon) 55 Shore D with an inside diameter of 6.975 in (177.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 7.525 in (191.14 mm), catalogued under part number TFE441. It compresses into its gland to block fluid or gas migration across a joint.
As a material, PTFE (Teflon) is specified for near-universal chemical inertness and non-stick, non-contaminating surface characteristics. This material stands up to solvents, nearly all industrial chemicals, and steam. Rated temperature range runs from -65°F (-53.9°C) to 500°F (260°C) in continuous service.
Common environments for this compound include aggressive-media pipelines, pharmaceutical and biotech, and chemical processing.
This item is sold individually under part number TFE441. Nominal inside diameter is listed as 7 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 568-441 PTFE ORINGS FDA
uf_description2 6.975" (117.17MM) ID X .275" (6.99MM)
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 6.975 inch (177.17 mm)
Actual_OD 7.525 inch (191.14 mm)
ProductCode Description O-Rings - Bulk - Premium