The flow characteristics of electric control valve directly affect the control quality and stability of the system, so it needs to be selected correctly.
When the electric control valve is actually used, the control valve is always installed in the process pipeline system, and the pressure difference before and after the electric control valve changes with the resistance of the pipeline system. Therefore, when selecting the flow characteristics of the regulating valve, it should be considered not only according to the process characteristics, but also in combination with the piping situation of the system.
According to the feedback of the on-site personnel, our regulating valve could not play a regulating role. The company sent technicians to the site to check the reasons. Later, it was learned through communication with the on-site technicians that the purchasing personnel only provided the caliber when purchasing, but did not provide relevant data, resulting in the selected diameter being too large and unable to play a regulating role. This problem can only be returned to the factory for internal hole shrinkage, This not only delays the user's working conditions, but also increases the use cost. Therefore, when purchasing the regulating valve, be sure not to provide only the diameter because of unclear parameters. Be sure to ask some use requirements of the on-site user (such as flow range, pressure in front of the valve, pressure behind the valve, flow medium, etc.) to avoid unnecessary losses.
