Introduction to Instrument Valves
Release date:
2021-05-31
An instrument valve is a type of pipeline accessory. It is used to change the cross-section of the passage and the flow direction of the medium, controlling the flow of the conveyed medium. An instrument valve is a type of pipeline accessory. It is used to change the cross-section of the passage and the flow direction of the medium, controlling the flow of the conveyed medium. The sealing performance of the instrument valve refers to the ability of each sealing part of the valve to prevent medium leakage, which is an important technical performance indicator of the instrument valve. There are three sealing parts of the instrument valve: the contact area between the closing element and the valve seat sealing surfaces; the fit between the packing, valve stem, and packing box; and the connection between the valve body and the valve cover. Leakage at the first part is called internal leakage.
Instrument valve It is a type of pipeline accessory. It is used to change the cross-section of the passage and the flow direction of the medium, 。 A device used to control the flow of the conveyed medium
Instrument valve It is a type of pipeline accessory. It is used to change the cross-section of the passage and the flow direction of the medium, 。 A device used to control the flow of the conveyed medium. The sealing performance of the instrument valve refers to the ability of each sealing part of the instrument valve to prevent medium leakage, which is an important technical performance indicator of the instrument valve. Instrument valve There are three sealing parts: the contact area between the closing element and the valve seat sealing surfaces; the fit between the packing, valve stem, and packing box; 。 and the connection between the valve body and the valve cover. Leakage at the former is called internal leakage, 。 which is commonly referred to as not closing tightly, 。 and it affects Instrument valve the ability to cut off the medium. For shut-off valves, 。 internal leakage is not allowed. 。 Leakage at the latter two points is called external leakage, meaning the medium leaks from inside the valve to the outside. 。 External leakage causes material loss, 。 pollutes the environment, 。 and in severe cases can cause accidents. For flammable, explosive, toxic, or radioactive media, 。 external leakage is absolutely not allowed, 。 therefore instrument valves
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, 。 control 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 plug valves, 。 three-way or four-way ball valves, etc.
(4) To prevent backflow of the medium in the pipeline. Such as various types of check valves, 。 foot valves, etc.
(5) To separate the medium. Such as various types of steam traps, 。 air traps, etc.
(6) To indicate and regulate the liquid level height. 。 Such as liquid level indicators, 。 liquid level regulators, etc.
(7) Other special uses. Such as temperature control valves, 。 flow protection emergency shut-off valves, etc.
More information
Contact Us
Email: mj@jsmjfy.com
Address: No.288,Huanghai RD,Haian City, Jiangsu Province,China
Mobile Website