The sealing performance of resilient Metal Seals is based on the relative high specific contact load at the sealing line and a certain resiliency or spring back of the elastic metal seal.

At higher pressure the system pressure assist in creating seating load. The seal itself is energized by this pressure.

The seating load and the corresponding sealing line width are a function of the selected seal type, cross section, material, material thickness and the alloy properties itself.

Depending on the required tightness and the media to be sealed, a specific seating load will be required. Plating or coating with soft, ductile material will provide better sealing by filling up groove imperfections. The seating load will make the ductile layer to flow and fill up the groove surface irregularities.

Resilient Metal Seals require a controlled compression. Typically these seals are installed in a machined groove, or the compression is limited by a so called retainer plate.

Resilient metal seals from High Tech Metal Seals NV are used in the most extreme environmental conditions. Spring Energised Metal C Rings are used under extreme conditions where temperature can range from cryogenic up to extreme high temperatures, such as 800°C.
To serve the harsh conditions in today’s Oil and Gas exploration, High Tech Metal Seals NV designs and manufactures resilient metals seals which comply and exceed the ISO 15848 leakage requirements for valves intended for application with volatile air pollutants and hazardous fluids. High Tech Metals Seals are manufactured from high alloy materials so that the finished product complies with NACE MR0175 requirements. Silver plated Metal O rings or Metal C Rings, because of ductile layer are successfully used in high vacuum applications. Silver plated or PTFE coated spring energised C Rings and Metal C Rings comply and exceed the ISO 15848 leakage requirements, from cryogenic temperatures up to extreme high temperatures and pressures. In nuclear applications, particle research, and other radiation application, typically high load resilient metal seals, such as spring energized metal C Rings or Metal O Rings, with a ductile layer of silver are successfully used. High Tech Metal Seals NV, seals for extreme environmental conditions are particularly suited for high pressure. The system pressure assist in maintaining intimate contact with the mating flanges.