Buna N O Ring Seal

Buna n also known as nitrile or nbr is a synthetic rubber material.

Buna n o ring seal.

They also require less compression to make a seal so they offer a longer service life. Nitrile is unique among synthetic rubbers in that it is generally resistant to chemicals such as oil and fuel among other substances such as mineral and vegetable oils diluted acids. Buna n o rings also referred to as nbr o rings and nitrile o rings are the most widely used o ring material in the word because of low cost good mechanical performance with resistance to water most basic oils lubricants and some fuels many pneumatic hydraulic systems and the default choice for basic applications. Its versatility makes it an ideal material for o rings seals gaskets and custom molded components for all industries and applications.

Nitrile butadiene rubber nbr is a family of unsaturated copolymers of 2 propenenitrile and various butadiene monomers 1 2 butadiene and 1 3 butadiene the additives used to accomplish this are not always compatible with buna n and has resulted in the auto industry upgrading o rings to viton elastomers. Buna n o ring assortments also known as quattro seals and x rings these x profile o rings have four points of contact for a better seal in dynamic applications than round profile o rings. Get durable buna n and viton o rings from grainger to help tightly seal connections in a wide range of industrial applications. Viton seals are rendered ineffective at temperatures below 5 f with the material becoming hard and inflexible.

Buna n rings with durometer 70 shore a can offer hood physical properties and provide excellent resistance to petroleum products. However it can effectively seal mechanical objects at low temperatures to 22 f.