E2.5X40 is a black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 40 mm (1.575 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 45 mm (1.77 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
Expect good resistance to dilute acids and alkalis, ozone, UV and weathering, and ketones. That behavior comes from the compound itself: EPDM (EPR) is widely chosen for outstanding weather, ozone and sunlight resistance, very good flexibility at low temperature. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It should not be specified for service in aromatic hydrocarbons or mineral oil-based lubricants.
Typical settings include solar and roofing assemblies, potable water applications, and HVAC and refrigeration.
Reference part number E2.5X40 when ordering; the item is sold individually. Unit weight is approximately 0.836 g. Review your operating media and conditions against this specification before installation.
Description 2.5MM CS X 40MM ID BLACK EPDM 70D
Actual Outside Diameter 45 mm (1.77 inch)
Actual Cross Section 2.5 mm (0.098 inch)
Actual Inside Diameter 40 mm (1.575 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity