A metal seal is distinct due to its material. For axial seals, the design is determined by what strength and temperature properties are needed; most times, they will be produced from high temperature super alloys like Inconel® material.
Since our business has a large range of metal materials available, you will receive a metal solution that fits your needs.
While the inner design of a metal seal is key, the outside is just as important. Metal seal platings and coatings have exceptional features in sealing technology.
- The additional soft layer is instrumental in improving the leakage rate, used to fill the roughness of the counter flange and enhance the sealing performance.
- The softer the plating, the more it can improve and cover surface irregularities in the hardware. Generally, a metal seal lies side by side with the high demands placed on the surface quality of the customer’s hardware.
- Special patented coatings are used to improve the wear resistance. PTFE is typically applied, while plated seals use gold, silver, copper, tin, and nickel as a top layer. For jacketed seals, aluminum lining is used.
Since metal seals are engineered to address critical pressure, temperature and leak rate challenges, they have a greater design flexibility. As a result, our team has designed and manufactured special shapes to accommodate typical dimensional tolerances.
-250°C to +1100°C
(-423°F to +2000°F)
vacuum to 100,000 psi (6894 bar)
Slow speed - thermal expansion and limited rotation or translation
8 mm to 400 mm