Mechanical Seal

The mechanical seal of the pump refers to the installation of the installation of the dynamic sealing function in the pump equipment, avoiding the flow of the fluid in the volute of the water pump through a part of the pump outside the pump shaft; Due to water pump for conceying fluid, with horizontal installation, high speed, high pressure, with solid particles, corrosion resistance and other characteristics, so the pumps with mechanical seal body material often need to resist the scour the impact of solid particles, high speed of sealing surface abrasion under high temperature, high pressure seal parameter is not stable, matrix structure corrosion, etc. The influence factors, higher requirements for mechanical seal sealing material, usally sealing surface friction pair optional material has nickel-bases carbide, cobalt base reaction sintering comented carbide, pressureless sintering of silicon carbide, metal graphite, ptfe filler graphite, ptfe filled with glass fiber, 3 ocidation 2 aluminium special ceramic, etc. The base material can be selected as 2Cr13 stainless iron, 301 stainless steel, 304 stainless steel, 316L stainless steel, 904L stainless steel, ptfe, etc. The spring compensable parts can be selected materials for HHS alloy, 1Cr18Ni9T9, 3Cr13, etc.