E80PC370 is an AS568-370 black EPDM (EPR) 80 Shore A O-Ring supplied with an inside diameter of 8.225 in (208.92 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.645 in (219.58 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
It resists water and steam, ketones, and dilute acids and alkalis. That behavior comes from the compound itself: EPDM (EPR) offers strong performance in outdoor and exposed installations, good electrical insulating characteristics. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It is not the right choice where aromatic hydrocarbons or mineral oil-based lubricants are present.
You will find this material specified across outdoor equipment, HVAC and refrigeration, and brake and phosphate ester systems.
Reference part number E80PC370 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description -370 BLACK EPDM 80D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 8.225 inch (208.92 mm)
Actual Outside Diameter 8.645 inch (219.58 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity