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Spring energized seal is a spring-actuated, pressure-assisted sealing device consisting of a PTFE (or other polymer) jacket, especially encapsulating a corrosion-resistant metal spring energizer.

The jackets are precision machined from PTFE, filled PTFE composites and other high-performance polymers with temperature range from cryogenic to 280°C. We have a variety of energy storage springs for choose,each with characteristics that meet specific requirements.

Spring energized seals provide durable and reliable sealing solutions in critical applications and under extreme operating conditions in different industries.

spring energized seals are precision machined parts, both the seal diameter as well as the seal section are function critical. The jacket allows the system pressure to assist in maintaining a certain seating load. The high precision metal spring, located in the jacket creates the initial seating load needed to create positive sealing. Hongda are available in a wide variety of designs, each with a spring designs optimized to handle the most demanding applications.

Spring-energized seals are most valuable where leakage is critical and in extreme environments such as cryogenic. Just tell us your application condition and relevant requirements,our team of qualified engineers and materials specialists will carry out new projects development for you.

• Valves, cryogenic

• Oil field equipment

• Coolers

• Cryogenic swivels

• Filling machines

• Fuel control systems

• Gas turbine engines

• HPLC pumps

• Robotika

• Rotary joints

• Vacuum equipment

• Aero hydraulics & pneumatic systems