Metal spiral wound gaskets are widely used in petroleum, chemical, metallurgical, power generation, shipping, and other industries. They are crucial components for static sealing in facilities such as pressure pipelines, valves, pumps, and heat exchangers in China. Therefore, the selection and use of metal spiral wound gaskets are of great significance in reducing and avoiding leaks, ensuring the normal operation of main equipment and pressure pipelines.

Metal spiral wound gaskets are semi-metallic materials processed from various materials. As an important sealing product, they have been widely used. Secondly, the surface of the product should not have any scratches or defects that could affect its sealing performance. The spot welding intervals of the product must be even, and there should be no defects such as unbonded areas or expansion. The surface should be free of any burrs or unevenness. The interval between the upper and lower sealing parts on the main body and the upper and lower surfaces of the reinforcing ring should be very stable and not loose. This ensures greater stability in subsequent applications. As a formal manufacturing enterprise, we have been constantly striving to reduce and avoid the existence of defective products, ensuring the normal operation of main equipment and pressure pipelines.

When purchasing metal spiral wound gaskets, attention should be paid to the following points:

Select gaskets based on operating conditions and flange sealing surface types.

Choose products from manufacturers with a complete and effectively operated quality certification system, and select products from companies that hold manufacturing licenses for special equipment (pressure pipeline components) and valid type test reports.

The surface of the gasket body should not have scratches, gaps, unevenness, or rust defects that could affect sealing performance. The non-metallic strip on the surface of the gasket body should be even and slightly higher than the metal strip, with clear texture but not exposing the metal strip. The spot welding intervals of the metal spiral wound gasket should be uniform, and there should be no defects such as incomplete fusion or over-fusion. The surface of the reinforcing ring should be free of burrs, unevenness, rust, and other defects. The interval between the upper and lower protruding surfaces of the gasket body and the upper and lower surfaces of the reinforcing ring should be the same. The inner reinforcing ring should be tightly fixed to the gasket body without loosening, while the outer reinforcing ring should maintain positioning with the gasket body and can be appropriately loosened.