Main Types And Applications Of Sealing Rings

Seal ring is an important sealing element widely used in various machinery, equipment and pipelines to prevent gas and liquid leakage. There are many types of sealing rings, each type has its specific application scenarios. The following are the main types and applications of sealing rings:

1. O-ring

O-ring is the most common sealing ring with a circular cross-section. It has the advantages of simple structure, small size and easy installation, and can be used in various static and dynamic sealing occasions. O-rings can withstand high pressure and temperature, have good compressibility and resilience, and can maintain good sealing performance in different working environments.

Application scenarios: O-rings are widely used for sealing in hydraulic systems, gas bottles, water tanks, etc., and can also be used in some pipes and valves that need to withstand higher pressures.

2. Rectangular sealing ring

Rectangular sealing ring is a sealing ring with a rectangular cross-section, and its material is mostly Polytetrafluoroethylene or rubber. Rectangular sealing rings have good corrosion resistance and high temperature resistance, and are suitable for environments with corrosive media such as strong acids and strong alkali. In addition, the rectangular sealing ring also has good anti-aging properties and a long service life.

Application scenarios: Rectangular sealing rings are commonly used in pipelines and valves in the chemical, pharmaceutical, food and other industries, and can also be used in some equipment that needs to be sealed for a long time.

3. V-shaped sealing ring

V-shaped sealing ring is a sealing ring with a V-shaped cross-section, and its material is mostly rubber or polytetrafluoroethylene. The V-shaped sealing ring has good elasticity and adaptability and can maintain good sealing performance in different working environments. In addition, the V-shaped sealing ring also has strong wear resistance and is suitable for some sealing situations involving high-speed rotation or reciprocating motion.

Application scenarios: V-shaped sealing rings are often used in high-speed rotating or reciprocating machinery such as bearings, gearboxes, and gas bottles. They can also be used in some pipes and valves that need to withstand greater pressure.

4. U-shaped sealing ring

U-shaped sealing ring is a sealing ring with a U-shaped cross-section, and its material is mostly rubber or polytetrafluoroethylene. The U-shaped sealing ring has good elasticity and adaptability and can maintain good sealing performance in different working environments. In addition, U-shaped sealing rings also have strong wear resistance and high temperature resistance, and are suitable for some high-temperature, high-pressure, and high-speed sealing occasions.

Application scenarios: U-shaped sealing rings are often used in high-temperature, high-pressure, high-speed machinery such as steam turbines and gas turbines, and can also be used in some pipes and valves that need to withstand greater pressure.

In short, sealing rings are one of the indispensable components in machinery, equipment and pipelines, and their performance directly affects the normal operation of the entire system. Therefore, when selecting and using a sealing ring, its material, structure, size, usage environment and other factors should be fully considered to ensure that it has good sealing performance and service life. At the same time, for different sealing occasions, appropriate sealing ring types and specifications should be selected to ensure the safety and stability of the entire system.