APG stocks the A80440, an AS568-440 black Aflas (TFE/P) 80 Shore A O-Ring with an inside diameter of 6.725 in (170.82 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 7.275 in (184.79 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Aflas (TFE/P) is valued for strong resistance to rapid gas decompression and exceptional resistance to amine-based additives. It resists high-temperature steam, sour gas and hydrogen sulfide, and hot water. The material carries a published service range of -25°F (-31.7°C) to 450°F (232.2°C). It is not the right choice where low-temperature dynamic service or some chlorinated solvents are present.
You will find this material specified across power generation, geothermal equipment, and chemical processing.
A80440 ships individually. Unit weight is approximately 0.0379 g and nominal inside diameter is listed as 6 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -440 BLACK AFLAS 80D O-RING
uf_description2 0.275" (6.99MM) CS X 6.725" (170.82MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 6.725 inch (170.82 mm)
Actual_OD 7.275 inch (184.79 mm)
ProductCode Description O-Rings - Bulk - Premium