Sealing Rings and Types

Sealing Rings are round shaped mechanical gaskets which are also known as O-rings, Packing Joints and Toric Joint. As the name suggests, these rings are used for sealing liquid or gas in various applications. These can be used in static applications as well as dynamic applications where there is relative motion between the parts and the Sealing Ring.
The rings are largely used in rotating pump shafts and hydraulic cylinder pistons due to their reliable performance, simple mounting requirements and cost effective prices.

Made from different basic materials, These rings are a loop of elastomer with a disc-shaped cross-section; these are designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. Sealing rings are rigid in design and can withstand high temperature, pressure and chemicals.

Available in various metric and inch standard sizes, are the most useful sealing elements ever developed. These are sturdy and appropriate for vacuum applications, high temperature applications etc.

Sealing rings are available in various materials, but the most commonly used materials include different synthetic rubbers and elastomers. Various types of Sealing Rings available in the market; some of them are EPDM, CR, NBR, HNBR and SIL.

- Rubber sealing rings

Here in this article, buyers can find details about various types of Sealing Rings:

CR: These are resistant to sun rays, weather conditions and ozone. The operating temperature of these rings varies from from-55-12 Celsius degrees.

Sealing Ring

Sealing Rings

EPDM: Made from ethylene propylene terpolymer, these rings are resistant to weather, ozone resistant, water and chemicals. Inappropriate for Food Industry, these rings can be used in alcohol, allied liquids and in high-temperature vapor environment. EPDM find applications in automobile radiator, braking system and in sanitary bath equipment. The operating temperature of these rings varies from -55 to 150 Celsius degrees.

HNBR: These rings are known for their corrosion proof, tear proof and deformation proof properties. The HNBR can also withstand wear caused by ozone, sunshine and other weather conditions. These are widely used in washing machines, automobile engines and refrigerating systems. The working temperature of HNBR ranges from -40 to 150 Celsius degrees.

NBR: These are one of the most popular and reasonable sealing elements available in the market. Made from nitrile -butadiene rubber, these can be used in hydraulic liquid, gas oil, water and silicon oil. Not appropriate for Polar Solvent, the operating temperature of NBR varies from -40 to 120 Celsius degrees.

SIL: Made from premium quality silicon rubber, these are known for their heat resistance, cold resistance and ozone resistance. The SIL sealing rings are widely used in electric heaters, electric iron, micro-wave oven, kettle and water fountain.