One of those things is the O-Ring, which was first patented in 1896. What is an O-Ring? It’s a doughnut-shaped loop designed to prevent the passage of liquids or gases. It’s one of the simplest precision mechanical pieces ever produced, and continue to be one of the most widely-utilized sealing products.

An O-Ring, also known as a “torus,” works in tandem with the glands in which they are installed. The gland is normally cut from the metallic hardware, and works with the O-Ring to seal. The gland and the O-Ring must be designed together to insure top performance.

How Does An O-ring Seal

Seals prevent fluids from escaping through the gaps in mating pieces of hardware. The O-Ring sits in the middle of a gland when it’s at rest, but as pressure begins to rise in the sealing system, the O-Ring shifts to the opposite side of the pressure.

Because the material is soft, the O-Ring is mechanically squeezed to plug the hole between the two mating hardware pieces.

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As the leading designer and manufacturer of rubber parts and seals, DESIOR Rubber has a wide range of products to meet all your sealing needs. From our vast o-ring inventory of virtually any shape and size to our complex, custom sealing solutions, we have precisely what you need for any sealing application.

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