-139 BLACK AFLAS 80D O-RING

APG stocks the A80139, an AS568-139 black Aflas (TFE/P) 80 Shore A O-Ring with an inside diameter of 2.175 in (55.25 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.381 in (60.48 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to amines and corrosion inhibitors, high-temperature steam, and sour gas and hydrogen sulfide. That behavior comes from the compound itself: Aflas (TFE/P) offers excellent electrical insulating properties and high-temperature steam capability that most fluoroelastomers cannot match. Published continuous service range is -25°F (-31.7°C) to 450°F (232.2°C). Verify compatibility before use with some chlorinated solvents or aromatic hydrocarbons.

Common environments for this compound include geothermal equipment, chemical processing, and oil and gas production.

Order part number A80139, sold individually. Unit weight is approximately 1.609 g and nominal inside diameter is listed as 2 3/16 inch. Check the compound against your process media, pressure and temperature before committing to a design.