Floating Seal‘s Advantages and Disadvantages

Tue February 20, 2024

Seal group picture

There are many advantages of floating oil seals. This article will help you to understand the main advantages and disadvantages to help you better apply floating oil seals. The main benefits are as follows:

Advantages of Floating Oil Seal

  • Stable sealing performance;
  • Anti-pollution solid ability and reliable operation;
    Super anti-pollution, it can prevent dust particles and other impurities from entering, reduce the wear of seals and damage to mechanical equipment, reduce downtime, extend the service life of equipment and improve economic efficiency.
  • Long service life;
    Because the seal is made of metal material and is wear-resistant, it has a longer life than seals made of other materials.
  • Face damage is automatically compensated, and the structure is compact;
  • Automatically compensate for shaft eccentricity;
    Floating can also effectively compensate for the eccentricity of the shaft and the radial runout under dynamic working conditions. It can adapt to the axial and radial movement of the shaft without affecting the sealing ring. It is designed to float or move along the shaft so that it remains a constant ring. It helps prevent fluid leaks and extends the life of the machine by reducing wear on air seals.
  • Simple maintenance and easy repair;
    Maintenance is simple and low-cost and does not require frequent replacement. In terms of maintenance, you need to regularly inspect and lubricate the floating oil seal to ensure that it works properly. If the sealing or mating rings are damaged or worn, be sure to replace them promptly to avoid costly repairs and downtime. Proper maintenance and regular inspection of these seals are critical to ensuring their longevity and effectiveness in preventing fluid leakage.
  • Undertake high temperatures and pressures;
    The sealing working parameters range is wide (working pressure can reach 30 MPa, working temperature is -100~200℃). The floating ring sealing material is metal, so it is resistant to high temperatures; it is especially suitable for sealing gas media in centrifugal compressors. It can also achieve no leakage to the atmospheric environment and is ideal for sealing flammable, explosive, toxic and precious gas media.

Seal group

Disadvantages of Floating Oil Seal

The floating oil seal has high manufacturing precision, high manufacturing and processing requirements, and relatively high cost. It requires the use of high-precision processing equipment and technology. The non-concentricity of the ring, the non-verticality of the end face and the surface roughness have a significant impact on the sealing performance. In addition, this seal cannot be leak-tight against liquids. Although the gas can be sealed tightly, it requires a complex and expensive automated oil supply system.

In short, floating oil seals are an essential component of heavy machinery and industrial equipment. They provide reliable and efficient sealing performance and are an ideal seal choice for engineering and machinery in many particular working environments. With their ability to float, floating oil seals have become an essential part of many industries, helping to ensure the smooth operation of machinery and reducing maintenance costs. Proper maintenance and regular inspection of these seals are critical to ensuring their longevity and effectiveness in preventing fluid leakage.

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