The E3X21 is a black EPDM (EPR) 70 Shore A O-Ring supplied with an inside diameter of 21 mm (0.827 in), a cross section of 3 mm (0.118 in), and an outside diameter of 27 mm (1.06 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, EPDM (EPR) delivers strong performance in outdoor and exposed installations, outstanding weather, ozone and sunlight resistance. Expect good resistance to ozone, UV and weathering, water and steam, and brake fluid. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C).
Common environments for this compound include outdoor equipment, water and steam systems, and potable water applications.
E3X21 ships individually. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 3MM CS X 21MM ID BLACK EPDM 70D
uf_description2 METRIC O-RING
Actual_OD 27 mm (1.06 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 21 mm (0.827 inch)
ProductCode Description O-Rings - Metric - Commodity