APG stocks the E80PC212, an AS568-212 black EPDM (EPR) 80 Shore A O-Ring with an inside diameter of 0.859 in (21.82 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.137 in (28.88 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
The compound resists ozone, UV and weathering, brake fluid, and ketones. EPDM (EPR) is specified for good electrical insulating characteristics, outstanding weather, ozone and sunlight resistance. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. Applications involving mineral oil-based lubricants or petroleum oils and fuels call for a different compound.
You will find this material specified across solar and roofing assemblies, potable water applications, and brake and phosphate ester systems.
Order part number E80PC212, sold individually. Nominal inside diameter is listed as 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -212 BLACK EPDM 80D O-RING
uf_description2 PEROXIDE CURED, 0.139" (3.53MM) CS X 0.859" (21.82MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.859 inch (21.82 mm)
Actual_OD 1.137 inch (28.88 mm)
ProductCode Description O-Rings - Bulk - Commodity