The HELICOFLEX® seal is a spring-energized metal seal designed for high-performance static and semi-static sealing applications, combining a helicoidal spring with a metallic lining to achieve viscoplastic deformation and maintain sealing pressure. It is available in sizes from DN 4 to 8000 mm with cross-sections of 1.5 to 40 mm, and operates across temperatures from -272°C to 800°C and pressures from 10⁻¹⁰ mbar to 3000 bar. The seal delivers bubble-tightness down to 10⁻¹² Pa·m³/s, features excellent resistance to radiation and corrosion, and adapts to all flange standards including PNEUROP, ANSI, and ISO. Controlled compression is required, achieved via grooves or built-in limiters, ensuring optimal load distribution and minimizing elastic deformation. The metal-to-metal assembly protects against over-tightening and enhances thermal transient performance.
The HELICOFLEX® seal is a high performance, flexible metal seal that has exceptional compression and elastic recovery properties. This seal is composed of a close wound helical spring surrounded by one or more metal jackets. The spring is designed to have a specific compression resistance. During compression, the resulting specific pressure forces the jacket to yield and fill the flange imperfections while ensuring positive contact with the flange sealing faces. Each coil of the helical spring acts independently and allows the seal to conform to surface irregularities on the flange surface.
HELICOFLEX® design flexibility allows Technetics engineers to customize the seal characteristics to match each unique application.
| Technetics Group | |
|---|---|
| Product Category | Metal Ring Seals |
| Product Number | HELICOFLEX® |
| Product Name | Spring Energized Metal Resilient Seal |
| Application / Industry | Chemical/Processing; Cryogenic; Piping/Valves; Oil/Gas; Nuclear; Semiconductor; Vacuum; Life Sciences, Automotive |
| Seal Type | Spring-Energized |
| Shape | Round; Rectangular/Square; Oblong/Oval |
| Temperature | -458 to 1472 F (-272 to 800 C) |
