Installation and maintenance of Globe Valve

The Globe Valve is a safety protection valve. The opening and closing parts of the Globe Valve are in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises and exceeds the specified value, it automatically opens and discharges the medium out of the system. Prevent the pressure of the medium in the pipeline or equipment from exceeding the specified value. Globe Valve are automatic valves that are mainly used in boilers, pressure vessels and pipelines to control pressure not to exceed specified values and play an important role in protecting personal safety and equipment operation.

According to the opening height of the Globe Valve disc, it can be divided into a slight lift Globe Valve and a full lift Globe Valve. The opening stroke height of the slightly lift Globe Valve is: ≤0.05d0 (minimum discharge throat diameter); the full lift Globe Valve opens The height is ≤0.25d0 (minimum discharge throat diameter).
Globe Valve are divided according to their structural forms and can be divided into plumb type, lever type, spring type and pilot type (pulse type); according to the valve body structure, they can be divided into two types: closed type and non-closed type. The closed Globe Valve means that the discharged medium does not leak out and is discharged along the outlet to the designated location. It is generally used in toxic and corrosive media. For Globe Valve for air and steam, non-closed Globe Valve are often used. The selection of Globe Valve products should be determined based on the actual sealing pressure.
For spring-type Globe Valve, there are springs with several working pressure levels within a nominal pressure (PN) range. When ordering, in addition to specifying the Globe Valve model, name, medium and temperature, the valve body sealing pressure should also be specified. , otherwise it is supplied according to the maximum sealing pressure.