Cryogenic PTFE Spring Energized Seals
Cryogenic PTFE Spring Energized Seals are specifically engineered to provide reliable sealing performance in harsh cryogenic systems where ultra-low temperatures, high vacuum, and high pressures are present.
Constructed with a helical wound spring and a PTFE-based polymer jacket, these seals are primarily used as flange internal face seals in cryogenic devices. Compared with traditional O-rings, spring energized seals deliver superior friction control, dimensional stability, and extended wear life, ensuring a long-lasting and leak-free seal even under deep cryogenic conditions.
They are widely applied in valve flange connections, cryogenic piping systems, and LNG equipment where leakage prevention is essential.
Product Detail
Cryogenic PTFE Spring Energized Seals
- Design: Helical wound spring energizer ensures high load capability, ideal for static face sealing in low-temperature fields.
- Application: Commonly used in flange sealing of valves and external flange connections in cryogenic systems.
- Performance: Superior wear life, reduced friction, and consistent sealing integrity compared to conventional O-rings.
Advantages
- Suitable for both static and dynamic radial sealing (rod or piston).
- Medium to high spring load provides positive sealing with manageable friction.
- Reliable under medium to high system pressure.
- Superior wear resistance and extended service life compared with elastomer seals.
- Stable sealing capability in cryogenic environments (LNG, ethylene, vacuum).
Working Conditions
Material:
- Sealing Ring: PTFE + Carbon Fiber
- Spring: 316 Stainless Steel
Temperature Range: –50℃ ~ +180℃
Pressure: ≤80 MPa
Applicable Mediums: LNG, low-temperature ethylene, cryogenic fluids, high-vacuum systems
