Centrifugal pump flow control method:
Method one: centrifugal pump outlet valve opening adjustment
In this method, the pump and outlet pipeline control valve series effect as the use of a new pump system, the maximum output pressure of the pump has not changed, but the flow curve has been attenuated.
Method two: centrifugal pump bypass valve regulation
In this way, the valve and the pump parallel effect as the new pump system, the maximum output pressure of the pump to change, while the flow curve characteristics of the flow curve is more close to linear.
Method three: centrifugal pump to adjust the impeller diameter
This method does not use any external components, and the flow characteristic curve varies with the diameter.
Method four: centrifugal pump speed control
Impeller speed change directly to change the pump flow curve, the characteristics of the curve does not change the speed decreases, the curve of the flat head and the maximum flow are reduced.