Why should the water pump be opened in time after the pump is started?
Just like peeing, just getting ready to pee, it feels like holding a chicken.
The circulating water pump outlet valve is closed when starting, normal after the water outlet valve is opened, I found that, with the valve opening, the current is slowly sinking, you tell me why?, and the other is the opposite of the pump (with the valve opening current increases).
There are many kinds of water pumps in power plants! Single-stage centrifugal pumps generally do not open in time, with the valve opening current increased! Multi stage centrifugal pump should be opened in time, otherwise it will lead to fever due to compression of liquid! With the valve opening, the current will increase! Single stage axial flow pump usually open the valve open, with the valve opening, current changes little or fall!
