Ordered as E80PC391, this is an AS568-391 black EPDM (EPR) 80 Shore A O-Ring with an inside diameter of 21.953 in (557.61 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 22.373 in (568.27 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.
EPDM (EPR) is specified here for strong performance in outdoor and exposed installations, outstanding weather, ozone and sunlight resistance. The compound resists dilute acids and alkalis, water and steam, and ozone, UV and weathering. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C).
Typical settings include outdoor equipment, brake and phosphate ester systems, and HVAC and refrigeration.
E80PC391 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description -391 BLACK EPDM 80D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 21.953 inch (557.61 mm)
Actual Outside Diameter 22.373 inch (568.27 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity