(1) Metal valve: its valve body and other parts are made of metal materials. 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, etc.
(2) Non metallic valve: its valve body and other parts are made of non-metallic materials. Such as plastic valve, enamel valve, ceramic valve, FRP valve, etc.
(3) Metal valve body lining valve: the shape of the valve body is metal, and the main surfaces in contact with the medium inside are lined, such as rubber lined valve, plastic lined valve, ceramic lined valve, etc.
