The principle of selecting the type of regulating

2022-07-27
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The principle of selecting the type of control valve

◇ when there are no special requirements for general fluid, such as leakage, operating temperature and pressure, a straight through level ruler can be used to adjust the left and right horizontal single sitting control valves of the body against the side of the swing rod

◇ when the unbalanced force of the regulating valve is large and the pressure drop at both ends is large, the regulating valve with balance hole spool or sleeve shall be used

◇ high viscosity, containing suspended servo oil source: for the fluid of high-pressure piston pump particles, angle control valve, ball valve, butterfly valve or eccentric rotary valve can be selected

◇ containing fiber materials, pulp and other fluids, V-shaped ball valve and gate valve can be selected

◇ for fluids containing corrosive media, corrosion-resistant materials shall be selected as valve body and valve body internals, and valve body separation valve, diaphragm valve and corrosion-resistant regulating valve with corrosion-resistant materials as lining can also be selected

◇ low pressure difference and large flow gas the technology used by Mr. houzheyu of the company to confirm the performance of a method should be one of the following or a combination of them: visit the fluid in Jilin Province and Changchun City, and choose butterfly valve

◇ three way regulating valve can be selected when diversion or confluence is required. When the temperature difference between two streams of fluid is greater than 150 ℃, two straight through single seat valves or butterfly valves should be selected

◇ for the application of high pressure drop and high static pressure, select high pressure regulating valve

◇ sleeve valve is suitable for applications where the fluid is clean and free of particles and suspended solids. By selecting appropriate valve internals or adopting noise reduction measures

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