This o-ring is supplied in AS568-471 black EPDM (EPR) 80 Shore A with an inside diameter of 21.955 in (557.66 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 22.505 in (571.63 mm), catalogued under part number E80PC471. It remains the most cost-effective sealing element available for pressurized assemblies.
As a material, EPDM (EPR) is widely chosen for good electrical insulating characteristics, strong performance in outdoor and exposed installations. The material holds up against dilute acids and alkalis, phosphate ester hydraulic fluids, and water and steam. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It is not the right choice where mineral oil-based lubricants or aromatic hydrocarbons are present.
You will find this material specified across solar and roofing assemblies, brake and phosphate ester systems, and outdoor equipment.
Reference part number E80PC471 when ordering; the item is sold individually. Nominal inside diameter is listed as 22 inch. Check the compound against your process media, pressure and temperature before committing to a design.
description -471 BLACK EPDM 80D O-RING
uf_description2 PEROXIDE CURED, 0.275" (6.99MM) CS X 21.955" (557.66MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 21.955 inch (557.66 mm)
Actual_OD 22.505 inch (571.63 mm)
ProductCode Description O-Rings - Bulk - Commodity