Applications - Industrial - O-Rings

O-Rings / Oil Field / Rolls / Seals

Description

O-Rings typically are used to seal between two surfaces. The o-ring presses against both surface with enough force that the fluid or gas can not escape. Because of the way most o-ring grooves are designed the o-ring is actually pushed into the gap between the mating surfaces by pressure on the other side.

Important properties for an o-ring include the ability to maintain its sealing force, usually measured as compression set or compressive stress relaxation, and the ability to maintain its sealing ability under temperature changes and different fluid exposures.

Environment

Industrial O-Rings are exposed to the following:
Temperatures from -40°C to 300°C
Fluids ranging from Water, Oil, Hydraulic Fluids, Refrigerants
Pressures up to 2000 psi
In some service conditions, the parts are required to withstand sudden changes in pressure.

Recommended Polymers

Nipol NBR

 

Additional Application - Oil

Description

Elastomers in oil service must retain all of the general properties required of O-rings. In addition, the compound should be based on a polymer with excellent resistance to oil exposure at a variety of temperatures and pressures.

Environment

O-rings formulated from Nipol DN 3380 have been tested in service temperatures up to 150°C with good retention of physical properties and minimal volume change.

Recommended Polymer

Nipol DN3380

 

Additional Application - Water

Description

O-Rings in water service must be formulated specifically to resist deformation with changes in pressure and elevated temperatures. DN 3335 has been formulated and tested for water service.

Environment

Water service typically produces wide shifts in pressure depending on the specific application. Low compression set is imperative for the compound to resist deformation with pressure changes. Compounds should also be tested for retention of properties with aging in water at temperatures up to 100°C.

Recommended Polymers

Nipol DN3335

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