The main purpose of the selected valve, the application working condition standard, and the control operation method;
The characteristics of the medium at work: pressure, operating temperature, corrosion energy, whether it contains solid particles, whether the medium is harmful, whether it is flammable, flammable and explosive medium, the viscosity of the medium, etc.; for example, if you want to choose a French LIT For imported solenoid valves, the medium and the natural environment are flammable, flammable and explosive. Generally, an explosion-proof solenoid valve should be selected; for example, the valve of French LIT should be selected. Hard seal ball valve.
Requirements for valve liquid characteristics: fluid density, discharge capacity, total flow characteristics, sealing level, etc.;
Assembly specifications and size requirements: nominal pipe diameter, connection structure, and connection specifications with pipelines, size or net weight limit, etc.;
Additional regulations on the stability of valve products, service life and fire resistance of intelligent equipment (pay attention when selecting the main parameters: if the valve is to be used for operation, be sure to specify the following additional main parameters: operation steps, diamond grade Small total flow regulation, normal fluid gas pressure, gas pressure when turned off, working pressure of the diamond-grade small inlet of the valve).
According to the above-mentioned basis and process of valve selection, it is necessary to conduct an in-depth analysis of the structure of various types of valves when selecting valves effectively and properly, so as to make an accurate selection of the preferred valve.
The final control of the pipeline is the valve. The valve opening and closing parts control the inflow of the medium in the pipeline. The appearance of the valve through the flow channel makes the valve have a certain total flow characteristic, which needs to be considered when selecting a valve that is properly assembled by the pipeline system software.
To sum up, there are several major factors for model selection: clarify which valves to choose, determine the ambient temperature and working pressure of the medium, determine the data flow of the valve and its necessary specifications, determine the material of the valve, and the actual operation method;
