Helical Spring Seal

Helical Spring Seals are sophisticated spring-energized seals, designed for superior sealing performance. These seals incorporate a helical spring — a coiled ribbon of thin sheet metal — encased within a robust polymer jacket. This unique design allows the helical spring to exert a constant load on the sealing surface, ensuring a tight seal under varying pressure and temperature conditions.

Helical spring's high load versus deflection range makes it ideal for static applications or slow dynamics, such as stem seals and cryogenic valves. Its ability to apply additional force is crucial to counteract thermal effects and ensure reliable performance. The consistent load applied by the helical spring allows the seal to adapt to minor surface irregularities, maintaining an optimal seal and preventing leakage.

Helical Spring Seals are particularly effective in cryogenic valves, in which they can withstand extremely low temperatures while maintaining a tight seal. They are also well-suited for stem seals, providing a secure fit with their high load capacity. 

Manufactured from high-performance materials such as PTFE (Teflon), UHMWPE, and PEEK, Helical Spring Seals offer exceptional durability and resistance to chemical attack. PTFE is particularly effective in aggressive environments due to its low friction and chemical resistance, while UHMWPE provides excellent wear resistance, and PEEK offers superior mechanical strength for high-pressure and high-temperature applications. 

The versatility and robustness of Helical Spring Seals make them indispensable in various industrial settings. Whether used in cryogenic applications, high-pressure environments, or slow reciprocating systems, these seals deliver consistent, long-lasting performance, making them a key component in modern industrial applications.