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O Rings

Nitrile O Rings

Nitrile O Rings have a working temperature range -30 to +100 degrees C.

Nitrile O Rings have good chemical resistance to mineral oils and greases, hydraulic oils and also non-flammable hydraulic pressure fluids.

Our range includes British Standard (BS1806), British Metric (BS4518) and German Metric (DIN3771). We also stock materials such as Nitrile, Viton, Silicone, EP, Neoprene, Polyurethane and many more.

O-rings seal by mechanical deformation that creates a barrier to a fluid’s potential leak path between two closely mated surfaces. O-rings are typically installed in a groove that’s machined or molded in one of the surfaces to be sealed. Their rubber-like properties let the devices compensate for dimensional variations in the mating parts.
When properly sized, the clearance between the surfaces is less the OD of the O-ring. Thus, as the two surfaces contact, forming a gland, they compress the O-ring, which deforms the round cross section. This diametrically squeezes the seal, and the resulting force ensures surface contact with the inner and outer walls of the gland.