1. Valve: metal materials such as carbon steel, alloy steel, stainless steel valve, cast iron valve valve, the titanium alloy valve and monel valve, copper alloy, aluminum alloy, lead alloy valve valve valve, etc.
2. The metal valve body lining: such as rubber lining, fluorine-butterfly valves, valve lining lead, lining plastic valves, valve lining enamel valve.
3. Valve non-metallic materials: such as ceramic, glass, plastic valve valve.
Domestic manufacturer of ball valve, connection size are not unified. Main points of the following categories:
Ball valve ball is floating, under the effect of medium pressure, the fitness ball produce certain displacement and compression at the outlet seal surface, guarantee the outlet seal.