If the suction pressure of a centrifugal pump increases, will the discharge pressure also increase?
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The pump is designed for an inlet pressure of 0.6 MPa and an outlet pressure of 1.5 MPa. If the actual operating inlet pressure is 1.2 MPa, what will be the outlet pressure? Is it around 2 MPa?
It will increase, but not by such a proportion. What is more important are factors such as the pump’s structure, sealing, and material; whether they are suitable for such pressure is what needs to be considered.
Pump outlet pressure = inlet pressure + head; since the head remains constant, the outlet pressure becomes 2.1 MPa
Discharge pressure: 1.5 MPa; the discharge pressure is equal to the resistance in the outlet pipeline (including pipeline resistance, head loss, and back pressure, etc.)
Analyze each specific issue individually; if the pressure at the liquid outlet remains unchanged, the head pressure of your pump will decrease. For example, if the pipeline after the outlet is a suspended discharge outlet