Overview of Control Valve Standards:
At present, in the field of automatic control, whether a process can meet various process control indicators, whether the control process is stable, whether overshoot, attenuation ratio, and interference are within the specified range, whether it is stable, fast, and accurate, in addition to reasonable process design, whether the regulating valve can act correctly according to the consciousness of the subject, and the control consciousness of the process subject is the correct change of material energy and flow rate
In automatic control, due to poor quality of regulating valves, poor flow characteristics, large leakage, and unreliable operation, automatic control loses high-quality regulation, causing huge economic losses to production and increasing labor intensity.
Due to the installation of the regulating valve on the process pipeline, it is in direct contact with the operating medium and has been subjected to harsh working conditions such as high temperature, high pressure, corrosion, and friction for a long time. Therefore, the selection of regulating valves is closely related to system control. Therefore, it is particularly important to choose and install regulating valves correctly and reasonably.
Selection of regulating valve products:
△ Direct single seat regulating valve: simple structure, easy assembly, small leakage, but unbalanced by fluid impact, suitable for small diameter applications.
△ Direct dual seat regulating valve: less affected by fluid impact imbalance, but not tightly closed, with large leakage, suitable for large diameter pipelines.
Angle regulating valve: The valve body of the angle regulating valve is less affected by fluid impact and less prone to fouling, making it particularly suitable for fluids with high viscosity and floating materials.