Ordered as E80PC218, this is an AS568-218 black EPDM (EPR) 80 Shore A O-Ring measuring an inside diameter of 1.234 in (31.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.512 in (38.4 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, EPDM (EPR) is specified for strong performance in outdoor and exposed installations, good electrical insulating characteristics. This material stands up to phosphate ester hydraulic fluids, ozone, UV and weathering, and brake fluid. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). It should not be specified for service in aromatic hydrocarbons or mineral oil-based lubricants.
Maintenance and OEM teams specify it across water and steam systems, solar and roofing assemblies, and HVAC and refrigeration.
Reference part number E80PC218 when ordering; the item is sold individually. Nominal inside diameter is listed as 1 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -218 BLACK EPDM 80D O-RING
uf_description2 PEROXIDE CURED, 0.139" (3.53MM) CS X 1.234" (31.34MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 1.234 inch (31.34 mm)
Actual_OD 1.512 inch (38.4 mm)
ProductCode Description O-Rings - Bulk - Commodity