Epr O Ring Specifications

This is particularly useful when sealing phosphate ester hydraulic fluids and in brake systems that use fluids having a glycol base.

Epr o ring specifications.

This is particularly useful when sealing phosphate ester hydraulic fluids and in brake systems that use fluids having a glycol base. Ethylene propylene rubber is an elastomer prepared from ethylene and propylene monomers ethylene propylene copolymer and at times with an amount of a third diene monomer ethylene propylene diene terpolymers. What is viton a. Epr aka epm ep copolymer contains only ethylene and propylene monomers.

Family of rubber materials. Epr ethylene propylene is especially good for steam among other things. Epdm aka ept ep terpolymer is composed of ethylene propylene and a third monomer called a diene three different dienes are in. Parker s 70 durometer black epdm e0803 70 is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking.

Monomers while a terpolymer greek three units is composed of three monomers. Ep copolymers must be peroxide cured while epdm polymers can be cured via sulfur or peroxide. 900 series o rings feature a round cross section. Buna n and viton o rings can be used for sealing valves faucets flanges engines and more.

While this is important information in terms of o ring manufacturing this difference is transparent to the end user. Parker s 90 durometer black epdm e0652 90 is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking. Epdm o rings feature lower cost steam and chemical resistance for numerous applications. Epr has a temperature range of 50 f to 160 f good tear resistance excellent abrasion resistance and fair to good resilience.

Both o rings and x rings are often referred to by the collective term seals. Each features a round cross section. Explore the world s largest inventory of epdm o rings at marco rubber. Epr specifically refers to ep copolymer while epdm refers to ep terpolymer.

Ctg s experienced engineers will custom tailor a seal to fit your exact requirements and manufacture 1 or 1 000 seals to your specifications that same day. Speak with a product expert. O rings from ct gasket polymer co inc.