Instrument valve types and their uses
Release date:
2021-07-14
According to the function of the instrument valve, instrument valves can be divided into the following categories: They can be divided into: shut-off valves, check valves, safety valves, regulating valves, and diverting valves. According to different operating pressures, they can be divided into vacuum valves, low-pressure valves, medium-pressure valves, high-pressure valves, and ultra-high-pressure valves.
According to instrument valve functions. Instrument valves can be divided into the following categories :
can be divided into : shut-off valves, check valves, safety valves, regulating valves, and diverting valves.
According to different operating pressures, they can be divided into vacuum valves, low-pressure valves, medium-pressure valves, high-pressure valves, and ultra-high-pressure valves.
According to the normal operating temperature, they can be divided into ultra-low temperature valves, low temperature valves, normal temperature valves, medium temperature valves, and high temperature valves.
According to different braking methods, they can be divided into : automatic valves and automatic valves ( safety valves, pressure reducing valves, steam traps, check valves, and automatic regulating valves. ) ; actuated valves can also be divided according to different power sources into ( electric valves, pneumatic valves, hydraulic valves, pneumatic valves, and electric valves. ) and manual valves.
According to the diameter of the fluid passing through the instrument valve, they can be divided into small instrument valves, medium instrument valves, large instrument valves, and extra-large instrument valves.
According to different structural shapes of instrument valves, they can be divided into : globe valves, plug valves, plug valves, rotary valves, butterfly valves, and slide valves.
According to different connection methods between instrument valves and other pipe fittings, they can be divided into threaded connection instrument valves, flange connection instrument valves, welded connection instrument valves, clamp connection instrument valves, clamp connection instrument valves, and butt clamp connection instrument valves.
According to manufacturing instrument valve materials used for valves : metal material instrument valves, non-metal material instrument valves, and metal valve body lined instrument valves.
There are many types of instrument valves, and there may be other classifications, but they still apply to gate valves, throttle valves, ball valves, butterfly valves, diaphragm valves, plunger valves, plug valves, check valves, safety valves, pressure reducing valves, steam traps, etc., used in industrial pipelines.
Use.
instrument valve Have the following uses :
(1) To connect or cut off the medium in the pipeline. Such as gate valves, globe valves, ball valves, plug valves, diaphragm valves, butterfly valves, etc.
(2) To regulate and control the flow and pressure of the medium in the pipeline. Such as throttle valves, regulating valves, pressure reducing valves, safety valves, etc.
(3) To change the flow direction of the medium in the pipeline. Such as distribution valves, three-way plugs, three-way or four-way ball valves, etc.
(4) To prevent backflow of the medium in the pipeline. Such as check valves and foot valves with different structures.
(5) To separate the medium. Such as steam traps and air traps with different structures.
(6) To indicate and adjust liquid levels. Such as liquid level indicators and liquid level regulators.
( Seven ) Other special uses. Such as temperature regulating valves, overcurrent protection emergency shut-off valves, etc.
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