Double Jacketed Gasket is made from graphite, ceramic, non-asbestos, etc filler covered with a thin metal jacket, such as SUS304, SUS316, Carbon steel, copper, soft iron, etc.
With excellent sealing performance, it can be used in sealing spots of pressure vessels, exchanger heat, condenser, plain hole, etc.
| Metal material | DinMaterial No. | HardnessHB | Temperature (?) | Densityg/cm3 |
| CS/Soft Iron | 1.1003/1.0038 | 90~120 | -60~500 | 7.85 |
| SS304, SS304L | 1.4301/1.4306 | 130~180 | -250~550 | 7.9 |
| SS316, SS316L | 1.4401/1.4404 | 130~180 | -250~550 | 7.9 |
| Copper | 2.0090 | 50~80 | -250~400 | 8.9 |
| Aluminum | 3.0255 | 20~30 | -250~300 | 2.73 |
Other special metal Ti, Mon 400 is also available on request.
Double jacketed gaskets have excellent sealing efficiency, provided by exerting strong pressure on circular rimes of the flanges, metal-jacketed gaskets can stand up to 30% deviation from the initial thickness, which is very useful in case of irregular or faulty flange rims. The chemical compatibility of the metal and the medium being sealed should be considered.
The filler material is completely enclosed by a two-piece metal jacket, which covers both the inside and outside diameters and both contact surfaces. It is designed for high pressure and temperature applications or where corrosion problems may exist with the filler being completely enclosed in a two-piece metal jacket.
Heat exchanger, Gas mains, Boiler and fuel, Pumps. Valve bonnets
