In terms of pressure drop, we don't know whether you know that excessive pressure drop of electric butterfly valve will increase energy loss. However, it must be clear that valves are not the only reason for the pressure drop in the pipeline system. There are other reasons that can make the pressure drop fluctuate, such as the fluid section of the pipeline and the friction force on the inner wall of the pipeline, which can be changed by the flow direction of the parts. As you know, the fluid characteristics of on-off butterfly valves are more than three times that of globe valves, in other words, three fourths of gate valves of the same size.

Fault 2: The actuator does not act, and the power light is on but the signal light is not. Processing method: check whether the polarity of input signal is correct; Use the comparison and exchange method to judge whether the control module is good.