Mechanical Seal Material Selection Guide

     The selection of mechanical seal materials should consider a variety of factors, including compatibility with fluids, operating conditions, environmental factors, wear and tear resistance, cost considerations, etc. The following is a detailed introduction:

     Metal sealing materials, such as stainless steel, tungsten carbide and titanium alloys, are suitable for harsh conditions such as high temperature, high pressure and high speed. They are wear-resistant, corrosion-resistant and high-temperature resistant. However, they are costly and are not suitable for low-temperature environments.

Non-metallic sealing materials, such as graphite, ceramic and PTFE, each have their own advantages. Graphite materials have good temperature resistance and corrosion resistance and are suitable for corrosion-resistant and high-temperature-resistant occasions; ceramic materials have high strength, high hardness and high-temperature resistance, and are suitable for chemical industry, food, medicine and other fields; PTFE Ethylene materials have the characteristics of low friction, corrosion resistance and high temperature resistance, and are suitable for chemical, electronic, medical equipment and other industries.

     Metal and non-metal combined sealing materials, such as Teflon packing, graphite packing and ceramic packing, have excellent sealing effect and are suitable for sealing under harsh conditions such as high temperature, high pressure and corrosion.

    In addition, when selecting mechanical seal materials, factors such as the material's elasticity, resistance to fluid erosion, friction factor, operating temperature range, mechanical properties, processing accuracy, and resistance to media corrosion should also be considered.