Valve castings are usually composed of valve body, valve cover, valve stem, valve disc, transmission mechanism and other components, which are widely used in the industrial field.
Main functions of valve castings in the industrial field are as follows:
1. Control the flow of media
Valve castings control the medium in the pipeline by opening or closing the valve disc.
2. Isolation purpose
Valve castings can be used to isolate systems with different media or different pressures to ensure the safety of the pipeline network and the normal operation of the system.
3. Adjustment purpose
Valve castings can control the flow and pressure of pipeline media by adjusting the angle or position of the valve disc.
4. Cut-off purpose
When it is necessary to stop the flow of the medium, the valve casting can play a good cut-off role to protect the safety of the pipeline.
5. Pressure reduction purpose
In the pipeline system, due to the different pressures of the medium, pressure fluctuations will occur, which will cause trouble for the stable operation of the pipeline system.
Valve castings can control the pressure of the outflow of the medium within a certain range through the pressure reduction effect, thereby ensuring the normal operation of the pipeline. 
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