Globe valves, a commonly used pipeline valve
Apr 09,2024
Globe valves, a commonly used pipeline valve, are used to control the flow of liquids or gases in pipelines. Globe valves are usually designed as a straight-through structure, which is characterised by the movement of the spool along the axis of the valve body to open and close the valve. Globe valves are mainly used to cut off or regulate the fluid in the fluid pipeline to achieve fluid control and prevent fluid backflow.
The structure of the globe valve mainly includes the valve body, bonnet, spool, seals and transmission device and other components. The valve body is the main part of the globe valve, used to support other parts and bear the pressure of the fluid. The spool is the key component of the globe valve, and it opens and closes the valve by moving up and down. Seals are used to ensure the sealing performance of the globe valve and prevent fluid leakage. The actuator is used to transmit the operating force to the spool to open and close the valve.
The operating principle of globe valves is to control the flow of fluid in the pipeline by rotating the spool to close or open the valve. When the valve is closed, the sealing surfaces between the spool and the seat fit against each other, preventing fluid from passing through the pipeline. When the valve needs to be opened, the operator rotates the spool through the actuator to separate it from the seat, thus allowing fluid to pass through the pipeline.
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