Epr O Ring Specifications

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Epr o ring specifications.

Epr aka epm ep copolymer contains only ethylene and propylene monomers. Explore the world s largest inventory of epdm o rings at marco rubber. Epr ethylene propylene is especially good for steam among other things. O rings from ct gasket polymer co inc.

Fda and nsf61 compliant o rings feature a round cross section and medium hardness. 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. While this is important information in terms of o ring manufacturing this difference is transparent to the end user.

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. Epr has a temperature range of 50 f to 160 f good tear resistance excellent abrasion resistance and fair to good resilience. Epdm o rings feature lower cost steam and chemical resistance for numerous applications. Each features a round cross section.

Buna n and viton o rings can be used for sealing valves faucets flanges engines and more. Parker s 70 durometer black epdm e0803 70 is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking. What is viton a. Family of rubber materials.

Epdm aka ept ep terpolymer is composed of ethylene propylene and a third monomer called a diene three different dienes are in. Ep copolymers must be peroxide cured while epdm polymers can be cured via sulfur or peroxide. 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. They offer low temperature flexibility with low gas permeability.

900 series o rings feature a round cross section. 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. Epr specifically refers to ep copolymer while epdm refers to ep terpolymer.