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Hat is the function of the globe valve

Posted by Bundor valve
Globe valve is used to cut off the flow of the medium, suitable for occasions that need to be opened frequently. The sealing parts of the globe valve are valve disc and valve seat. In order to make the globe valve close tightly, the mating surface of the valve disc and seat should be ground or gasketed, the sealing surface can also be inlaid with corrosion-resistant and wear-resistant materials such as bronze and stainless steel. The disc and stem of the globe valve are removable connected, so the disc and stem can be tightly fitted. The lift of the valve disc of the globe valve is generally controlled by the valve stem. The upper part of the valve stem is the handwheel, the middle part is the thread and the packing sealing section. The function of the packing is to prevent the medium inside the valve body from leaking along the valve stem.
What is the function of the globe valve?

1. The main function of the globe valve in the pipeline is to cut off and connect the fluid. The regulating flow of the globe valve is better than gate valve, but globe valve cannot be used to adjust the pressure and flow for a long time. Otherwise, the sealing surface of the globe valve may be eroded by the medium, destroy the sealing performance.
2. Globe valve can be used for water, steam, compressed air and other pipelines, but it is not suitable for medium pipelines with high viscosity, easy coking, and easy precipitation.
How dose globe valve works?
The disc of the globe valve moves vertically along the center line of the valve seat, relying on the spinning of the valve stem thread, so that the sealing surface of disc and the sealing surface of the seat are closely fitted together, thereby blocking the flow of the medium.
The advantages of globe valve
1. The working stroke is small and the opening and closing time is short.
2. Good sealing performance, small friction between sealing surfaces and long service life.
3. The adjustment performance is better.
Disadvantages of globe valve
1. The installation length is longer, the resistance of the medium flow is big.
2. The structure is more complicated, it is difficult to manufacture and maintain.
3. The fluid passes through the valve seat from bottom to top, the resistance is large, and the force required for opening and closing is large.
4. It is not suitable for media with granule, high viscosity and easy coking.
The connection can be thread and flange. Bundor Valve, a high-quality valve manufacturer, produces and supplies various materials and types of globe valves.