Relationship between outlet pressure and flow rate of hydraulic diaphragm pumps
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Is there a relationship between the pump outlet pressure and flow rate of a hydraulic diaphragm pump?
The outlet valve is closed – what about the pump head flow? If the outlet valve is closed halfway, the pressure will also rise – what about the pump head flow rate?
Can it be understood that, with a constant outlet backpressure, the flow rate remains unchanged?
The flow rate is determined by the size of the diaphragm, its stroke, and the number of cycles
The outlet pressure of a positive displacement pump depends on the back pressure or pipeline resistance
If the process parameters remain unchanged and only the opening degree of the outlet valve varies, will the flow rate stay the same?
Could I add a valve to the outlet pipeline and manually adjust its opening degree? Assuming a constant diaphragm stroke, the frequency remains fixed. Does the traffic remain unchanged at this time?
If it changes, it indicates a pump failure
The volume of water pumped by the diaphragm pump remains constant; if the valve in the outlet pipeline is closed, will the flow rate before the valve not change? Is the water compressed?