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What is Globe Valve?

Globe valve, also known as shut-off valve, is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to prevent leakage of the forced sealing surface. When the medium enters the valve from below the valve disc, the resistance to be overcome by the operating force is the friction between the stem and packing and the thrust generated by the pressure of the medium. The force to close the valve is larger than that to open the valve, so the diameter of the stem should be larger, otherwise the stem will be bent. According to the connection mode, it can be divided into three types: flange connection, screw connection and welding connection. After the appearance of self sealing valve, the medium flow direction of the stop valve will change from the top of the disc to the valve chamber. Under the action of medium pressure, the force to close the valve is small, while the force to open the valve is large, and the diameter of the stem can be reduced accordingly. At the same time, under the action of medium, this type of valve is also tight.

The globe valve\'s opening and closing part is a plug-shaped disc. The sealing surface is flat or conical. The disc moves linearly along the center line of the valve seat. It can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Therefore, this type of globe valve is very suitable for cut-off or regulation and throttling. Because the opening or closing stroke of the valve stem is relatively short, and it has a very reliable cut-off function, and because the change of the valve seat opening is directly proportional to the stroke of the valve disc, it is very suitable for regulating the flow.

DBV recently had finished a batch of globe valve with pneumatic actuator.And the valves are with extended bonnet for the low temperature using.As a valve manufacturer who has been specialized in the production of industrial valves for 20 years.DBV is experienced in the producing automation valves.If any projects regarding us,pls dont hesitate to contact us at info@dbv-armaturen.com.





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