Classified by body material
(1) Metal material valve: The valve body and other parts are made of metal material. Such as cast iron valve, cast steel valve, alloy steel valve, copper alloy valve, aluminum alloy valve, lead alloy valve, titanium alloy valve, Monel alloy valve and so on.
(2) Non-metallic valve: its valve body and other parts are made of non-metallic material. Such as plastic valves, enamel valves, ceramic valves, FRP valves, etc.
(3) Metal valve body lining valve: The shape of the valve body is metal, and all the main surfaces in contact with the medium are lined, such as rubber-lined valves, plastic-lined valves, and ceramic-lined valves.
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