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Considerations for selecting valves

Release time:

May 27,2024

How to choose the right valves is a very careful, complex, systematic work in the design, installation, operation and maintenance of piping systems. It is necessary to consider all aspects of the factors in order to make the right choice

Considerations for selecting valves

    How to choose the right valves is a very careful, complex, systematic work in the design, installation, operation and maintenance of piping systems. It is necessary to consider all aspects of the factors in order to make the right choice. Roughly consider the following aspects:

1、Depending on the place of use and the purpose of the valve, the valve can be selected to meet various requirements;

2、Confirm the working conditions of the valve, applicable medium, working pressure, medium temperature;

3、Determine the nominal through diameter to match the pipe: DN (mm);

4、Determine the way to connect with the pipeline: flange, internal (external) threaded, welded, clamped, clamp type, ferrule type, etc.;

5、Determine the mode of operation of the valve: manual, worm gear-operated, pneumatic, electric, hydraulic, solenoid-operated, electro-hydraulic, and so on;

6、Confirmation of valve types: gate valves, globe valves, throttle valves, piston valves, ball valves, butterfly valves, plug valves, check valves, safety valves, traps and other special valves;

7、Determine the use of the valve form: switching, regulating, safety, etc.

8、Determine the material of the valve shell and internal parts: grey iron, ductile iron, carbon steel, alloy steel, stainless steel, copper alloy, aluminium alloy, plastic, etc.

9、Determine the valve's sealing performance requirements, sealing rating, or sealing leakage;

10、Determine protective coating requirements, packaging requirements, and shipping requirements for the valve;

11、Special needs of the valve should also determine: structure length, valve height, external dimensions, flow resistance, discharge capacity, flow characteristics, protection class, explosion-proof performance and other parameters;

12、Determine the installation position and posture of the valve.

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