APG stocks the E80PC284, an AS568-284 black EPDM (EPR) 80 Shore A O-Ring with an inside diameter of 17.955 in (456.06 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 18.233 in (463.12 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
This material stands up to water and steam, brake fluid, and ozone, UV and weathering. EPDM (EPR) is known for very good flexibility at low temperature, excellent hot water and steam resistance. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). Exposure to aromatic hydrocarbons or petroleum oils and fuels will shorten service life.
It sees regular use in potable water applications, brake and phosphate ester systems, and solar and roofing assemblies.
Reference part number E80PC284 when ordering; the item is sold individually. Nominal inside diameter is listed as 18 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description -284 BLACK EPDM 80D O-RING
uf_description2 PEROXIDE CURED, 0.139" (3.53MM) CS X 17.955" (456.06MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 17.955 inch (456.06 mm)
Actual_OD 18.233 inch (463.12 mm)
ProductCode Description O-Rings - Bulk - Commodity