Metal spiral wound gasket is an important sealing element, which is widely used in petroleum, chemical industry, metallurgy, power generation, shipbuilding and other industries. It is the key component of static sealing of current China pressure pipelines, valves, pumps, heat exchangers and other equipment. . The selection and use of high-quality metal spiral wound gasket products are of great significance in reducing and eliminating running, running, dripping, and leaking, ensuring the safety of host equipment, and normal operation of pressure piping.
When purchasing a metal spiral wound gasket product, the following points should be noted:
1, according to working conditions to select the gasket.
2, the surface of the gasket body does not allow the impact of the sealing performance of the scars, voids, bumps and rust defects.
3, compression rate, rebound rate and sealing performance are important performance indicators for gaskets. In general, under the premise of satisfying compression ratio requirements, the higher the rebound rate is, the better; and it meets the requirements of the rebound rate standard. Under the premise, the test value of the compression ratio is also larger. Should choose a product with good sealing performance, moderate compression ratio and the greatest rebound rate.