Spring Energized Seals
Spring Energized Seals
Seal jacket
Metal spring energizer
Spring force
System pressure
What is a spring-energized seal?

Spring-energized seal typically consists of two basic components: the seal jacket and a corrosion resistant metal ring. When the seal is seated in the gland, the spring is under compression and it responds with constant force, pushing out the sealing lips and creating a gas tight seal against the sealing surface. The spring also provides resiliency to compensate for seal wear, gland misalignment or eccentricity. While spring force offers adequate force for sealing at low pressure, at high pressure the system pressure augments the spring force to provide tighter sealing.

Features of spring energized seals
  • Excellent dynamic and static sealing
  • Low friction: low coefficient of friction offers good wear resistance
  • High surface speed capability: up to 15 m/s
  • Wide temperature range: from -196 to 300 ℃
  • Almost universal chemical compatibility
  • Outstanding resistance to gap extrusion
Advantages of spring energized seals

The seal jacket of spring-energized seals is made from PTFE and other high-performance polymers. Spring-energized seals with a PTFE jacket are capable of operating over a wide temperature range from -196℃ to 300℃. They are virtually unlimited chemically inert, except for molten alkali metals, fluorine gas at high temperatures and Chlorine Trifluoride (CIF3). Spring force can meet the extremely demanding low friction requirements in dynamic applications, as well as the high load requirements needed for low-temperature sealing.
    1. Cantilever Spring Energized Seal
    2. Cantilever Spring Energized Seal FJSEALS cantilever spring energized seal is a single-acting seal, and makes use of a V shaped corrosion resistant ring embedded in a U-cup seal jacket. Explore
    1. Flanged Spring-Energized Rotary Seal
    2. Flanged Spring-Energized Rotary Seal FJSEALS flanged spring-energized seal is excellent in rotary, reciprocating and static applications, when there is a need to lock the seal in the groove. Explore
    1. Helical Spring Energized Seal
    2. Helical Spring Energized Seal FJSEALS helical spring energized seal is a single-acting seal consisting of a wound corrosion resistant metal spring installed in a U-shaped jacket. Explore
    1. Spring Energized Face Seal
    2. Spring Energized Face Seal FJSEALS spring energized face seal is a standard seal used for flat applications. Face seals are designed for either internal or external pressure, but not both. Explore

Our spring-energized seals can be used for high-pressure sealing systems, high-temperature sealing, low-temperature sealing, and more.

We provide customization options for materials, shapes, sizes, dynamic spring energized seals, static spring energized seals, and more, to meet the sealing needs of various mechanical devices.

We have adopted world-class high-precision sealing processing equipment, pure imported raw materials and strict quality management systems to rapidly produce precision sealing products of any shape (especially the special-shaped product), size, and material to meet customer needs.

As a professional manufacturer of spring seals, FJSEALS is capable to produce spring-energized seals in a wide range of sizes, from 5 mm to 2.6 m in diameter.

Spring-energized seals are available for seals to operate at temperatures as low as -196 ℃ and as high as 260 ℃.
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What We Do

FJSEALS is consistently offering high performance valve and cylinder sealing solutions. We strive to continually enhance our partnerships through a combination of excellent service and efficient production. Customers have valued FJSEALS as their design partner in selecting the right materials and advanced processing technology, and their reliable supplier for cost-effective and customized industrial sealing products with consistent high quality.

  • Why Us
    World-class high-precision sealing processing system for valve and cylinder application FJSEALS is a professional enterprise engaged in the production of industrial seals. FJSEALS has a highly qualified R&D team, and an experienced management team.
  • Why Us
    Customization of special-purpose products according to customer needs FJSEALS is able to quickly produce hydraulic and pneumatic sealing products, high and low-temperature valve seals, and other products of any size, specification, and material for customers.
  • Why Us
    We are committed to improving your sealing level Industries cover metallurgy, petroleum, shipping, mining, hydropower stations, low-temperature engineering, pharmaceuticals, and more.
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