Soon Seng PolySeal - oil seals, hydraulic seals, pneumatic seals, mechanical seals
Sonn Seng Poly Seal

Spring-Energized Seal





A spring-energized seal consists of a high performance polymer sleeve and a finger spring. The polymeric sleeve has a U-shaped profile and it can be made of PTFE, PTFE Carbon, PTFE Graphite, PTFE Bronze or PTFE Glass. The finger spring can be a V-spring (meander spring), Helical spring or canted coil spring. The spring materials can be made of stainless steel, PEEK or Inconel.

This type of seal is capable of handling extreme service conditions, such as ultra-low friction, chemical compatibility and extreme temperature is required. The spring will energize the sealing lip even at low pressure and also at high pressure. It was designed especially for turbine engines, rockets, missiles, and also to serve the most challenging oil and gas applications.

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