20 Valve Materials-Sealing surface material
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Sealing surface material
The sealing surface is the key working surface of the Lined Valve, and the quality of the sealing surface is related to the service life of the valve. Usually, the sealing surface material should consider factors such as corrosion resistance, abrasion resistance, erosion resistance, and oxidation resistance.
Rubber (including nitrile rubber, fluororubber, etc.)
Plastic (polytetrafluoroethylene, nylon, etc.)
Copper alloy (for low-pressure valves)
Chromium stainless steel (for ordinary high and medium pressure valves)
Stellite alloy (for high-temperature and high-pressure valves and highly corrosive valves)
Nickel-based alloy (for corrosive media)
