Material of flange gasket outer reinforcement ring or outer ring is solid metal.The role of the metal is:
1. Help to align the sealing element during installation.
2. To prevent the sealing element from being excessively compressed and damaged.
3. Prevent gasket blowing out and reduce flange rotation.
4. The outer reinforcing ring is not in contact with the sealing medium, so it is not required to be resistant to medium corrosion, so it is often made of carbon steel material. The outer reinforcing ring can also be made integral with the sealing element, such as metal toothed gaskets, wave toothed composite gaskets.
5. The material of the inner reinforcing ring or the inner ring is in contact with the fluid, and its material should be able to resist the corrosion of the sealing medium.
6. The function of the inner reinforcement ring is to prevent the gap between the sealing element and the container or pipeline flange to avoid the gap from interfering with the flow of fluid and the resulting fluid impact on the gasket.
