Outstanding physical features and technical characteristics make Chesterton Customseal spring-energised seals and pneumatic cylinder seals are the ideal choice in a wide variety of critical industrial equipment and applications.
Spring-energized seals can be used in both dynamic and static applications. Dynamic applications cover reciprocating (linear), rotary, and oscillating movements or any combination.
Considerations when determining whether to use standard polymeric seals or spring-energised seals include:
- Temperature (operating and ambient possible maximum/minimum)
- Operating pressure (what is not necessarily the maximum pressure in the system)
- Velocity (moving speed)
- Media (chemical compatibility: especially important in case of aggressive media)
- Friction level and wear
- Environment (for example, abrasive conditions)
- Application and operation of the equipment
- Seal cavity configuration
- Shelf-life limitation
Chesterton seal jackets can be made from a range of polymers, depending on the requirements of the application. Polymeric material options include PTFE, TFM, UHMW-PE, and PEEK. To suit the needs of specific applications, these can be filled with additives such as carbon, graphite, glass, molybdenum, and other materials.
Chesterton seal springs are fabricated using a range of high performance, corrosion-resistant metals and alloys based on the application temperatures and chemical requirements. Stainless steel is typical for fluids up to 127°C (260°F) and corrosive applications at lower temperatures. Eligiloy®, Hastelloy®, and nickel alloy materials are used for cryogenic and high-temperature, corrosive fluid environments.
|Sample Equipment||SES Benefits|
|Engineered valves operating in a temperature range of -45 – 177°C (-50 – 350°F), pressures up to 1,035 bar g (15,000 psi), while controlling a wide spectrum of fluids.||
|Cryogenic valves controlling LNG, nitrogen, oxygen, argon, and helium at temperatures to -180°C (-292°F).||
|Automotive paint pumps, adhesive pumps, and paint dispensers||
|High performance liquid chromatography (HPLC) plungers generating 345 bar g (5,000 psi) and beyond; over thousands of cycles in the presence of highly aggressive solvents.||
|Food, dairy, and beverage applications such as homogenizers, mixers, and dispensing equipment requiring low friction and chemical sterilization to meet cleanliness requirements and improve food safety.||