What is rubber seals of different shapes

 O-rings, X-rings, square o ring seals, etc.?

O-rings, X-rings and square o ring seals are rubber seals of different shapes that are important components used to achieve sealing effects in applications such as mechanical devices, pipe connections and container closures.

The following describes their working principles and sealing methods:

  • O-ring
    O-ring is an annular cross-section seal, which is usually made of rubber materials (such as NBR, EPDM, etc.). Suitable for static sealing and low pressure dynamic sealing. Its working principle is based on its ability to elastically deform and fill sealing gaps. When an O-ring is placed between two sealing surfaces, its elasticity causes the cross-section of the ring to be compressed, thereby forming a seal.
  • X-shaped ring
    The X-ring is a seal with a cross-section, also known as a square ring or fork seal. It is usually made of rubber material such as nitrile butadiene rubber (NBR). The working principle of the X-shaped ring is to achieve sealing through its special cross-sectional shape. The X-shaped ring will be compressed and deformed during installation to form four sealing lips. These lips contact the sealing surface and provide a sealing effect. Able to withstand large pressure and shear forces.
  • Square o ring seals
  • Square o ring seals, also known as square ring and square rubber seal, has a square or rectangular cross-sectional shape and is made of rubber material. Its working principle is to achieve a sealing effect through its cross-sectional shape and elasticity. When a square sealing ring is placed between the sealing surfaces, its elasticity causes the cross-section of the ring to be compressed, thereby providing a seal. Square sealing rings are suitable for special-shaped sealing requirements, such as doors, windows, valves and mechanical equipment.

O rings X rings square o ring seals

Applications

O-ring applications

  • Hydraulic system
    Commonly used in sealing components in hydraulic systems, such as hydraulic cylinders, valves and pumps. They can provide static sealing and low pressure dynamic sealing.
  • It is used in the automotive industry for liquid and gas sealing in automotive engines, transmission systems, braking systems, fuel systems and other parts.
  • Dust-proof sealing in electronic equipment, such as electronic instruments, circuit boards, and displays.
  • In the home appliance industry, such as washing machines, refrigerators, and air conditioners. Seal water, gas and refrigerant etc.

Application of X ring

  • High pressure seal
    High-pressure sealing applications in hydraulic systems, high-pressure pipes and connections, etc.
  • X rings are used in automotive braking systems, hydraulic cylinders and suspension systems in the automotive industry.
  • In the field of construction machinery, such as excavators, loaders, and bulldozers, X-rings are used to seal hydraulic cylinders and hydraulic systems.
  • Aerospace
    In order to meet the requirements under high pressure and high temperature conditions, X-rings are used in the aviation field to seal hydraulic and fuel systems.

Application of square o ring seals

  • square o ring seals are commonly used in doors, windows, glass curtain walls and building sealing to provide air tightness, waterproofing and sound insulation properties.
  • Used for sealing in valves and piping systems to prevent leakage and fluid loss.
  • Used in mechanical equipment to seal bearings, transmissions and rotating parts to prevent leakage of lubricating oil or liquid.
  • Square sealing rings are used in the chemical and food processing industries to seal containers, reactors and pipelines to ensure equipment safety and hygienic use.

Whether it is an O-ring, X-rings, square o ring seals. When necessary, you can consult Lindepolymer’s professional engineers to provide you with a suitable suitable sealing solution.