Epr O Ring Specifications

900 series o rings feature a round cross section. Epdm o rings feature lower cost steam and chemical resistance for numerous applications. Epr specifically refers to ep copolymer while epdm refers to ep terpolymer.

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Epr has a temperature range of 50 f to 160 f good tear resistance excellent abrasion resistance and fair to good resilience.

Epr o ring specifications. While this is important information in terms of o ring manufacturing this difference is transparent to the end user. Epr ethylene propylene is especially good for steam among other things. Its temperature range is 60 degrees f to 260 degrees f and also works well with water hydraulic fluids brake fluids silicone oils and alcohol. O rings from ct gasket polymer co inc.

Ep copolymers must be peroxide cured while epdm polymers can be cured via sulfur or peroxide. What is viton a. Speak with a product expert. 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.

Both o rings and x rings are often referred to by the collective term seals. Epr aka epm ep copolymer contains only ethylene and propylene monomers. Family of rubber materials. 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.

Explore the world s largest inventory of epdm o rings at marco rubber. Epdm aka ept ep terpolymer is composed of ethylene propylene and a third monomer called a diene three different dienes are in. Each features a round cross section. This is particularly useful when sealing phosphate ester hydraulic fluids and in brake systems that use fluids having a glycol base.

Buna n and viton o rings can be used for sealing valves faucets flanges engines and more. Parker s 90 durometer black epdm e0652 90 is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking. This is particularly useful when sealing phosphate ester hydraulic fluids and in brake systems that use fluids having a glycol base. Monomers while a terpolymer greek three units is composed of three monomers.

They offer low temperature flexibility with low gas permeability. Parker s 70 durometer black epdm e0803 70 is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking. Fda and nsf61 compliant o rings feature a round cross section and medium hardness.