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Solutions to common faults of electric control valve


Electric control valve It is mainly composed of electric actuator and control valve. The electric actuator provides power to drive the regulating valve, and receives the switch and regulation signals of the control system. The control valve plate regulates the medium in the pipeline. Electric control valve in the long-term use of the process, the total inevitable will encounter some problems, the next for you to introduce the common problem solving measures.
1. The control signal does not act after power on. The first one may be caused by motor damage, which can be judged according to the resistance value by measuring the motor winding with a multimeter. The second problem is that the pipe may be blocked by removing debris.
2. The electric control valve is not closed tightly. This situation is mainly due to the wear of the seal ring.
3. The regulating valve cannot be opened. Most of this situation is due to the new installation of soft seal control valve in the process of installation flange mounting screw is too tight, so that the rubber extrusion deformation and the butterfly plate.
4. The electric control valve does not act to regulate the signal. If it is confirmed that there is no problem with the control signal, you can check the control module by replacing it. If the module is damaged, replace it with a new one, otherwise check the motor again.