Both the handle lever butterfly valve and the worm gear butterfly valve are valves that need to be operated manually, commonly known as manual butterfly valves, but they are still different in use....
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There are many types and complex types of valves, mainly including gate valves, globe valves, throttle valves, butterfly valves, plug valves, ball valves, electric valves, diaphragm valves, check v...
Overview
Valve is an important product in general machinery. It is installed on various pipes or devices to control the flow of medium by changing the channel area in the valve. Its functions are: ...
China Groove Butterfly Valve Related Videos From Youtube