Pump seals featuring static spring energization and PTFE material

PTFE spring-energized pump static seals are ideal for use in applications involving aggressive chemicals, high pressures, and temperatures, and where traditional elastomeric seals are not suitable. These seals offer superior sealing performance, long service life, and minimal maintenance requirements, making them an attractive choice for a wide range of industrial applications.

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Introduction:

PTFE (polytetrafluoroethylene) spring-energized pump static seals are a type of sealing solution used in pumps and other fluid handling systems to prevent leakage of fluids. These seals are designed to provide reliable, long-lasting sealing performance in high-pressure and high-temperature applications.

The seals are made from PTFE, a synthetic fluoropolymer known for its excellent chemical resistance and low coefficient of friction. The PTFE material used in spring-energized seals is specially formulated to provide enhanced wear resistance and resilience in demanding environments.

The spring energization of these seals comes from a metallic spring element that is encapsulated within the PTFE material. The spring applies a constant radial force on the seal, ensuring a tight seal against the mating surface. This spring energization also allows the seal to compensate for wear and other dimensional changes in the sealing system.

Material

PTFE filled with bronze(glass,graphite,carbon,etc.)

Application Example

Inside face Seals in Static and rotary Service.

Outside face Seals in Static and rotary Service.

Radial Seals in Static Service.

Radial Seals in Reciprocating Motion.

Radial Seals in Rotary Motion.

Main advantages of PTFE seals:

High chemical resistance

Withstand speeds up to 30 m/s (5 900 ft/min)

Wide operating temperature range, –70 to +250 °C (–95 to +480 °F)