Question: How are the pump suction pressure and discharge pressure determined?
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As the title suggests, I would greatly appreciate your guidance; the more detailed, the better. It would be best to have example problems. Thank you first
Pump suction side pressure = Pressure at the inlet liquid level – Resistance in the inlet pipeline (or by using an inlet vacuum gauge). Pump discharge side pressure = Value shown on the outlet pressure gauge – Suction side pressure (or value from the inlet vacuum gauge)
In actual production, it is based on flow rate. . .
Pressure gauges are generally installed at the outlet of the pump, while the pressure at the inlet can be calculated based on the tank pressure and pipeline resistance. If one knows all the parameters of the pump as well as the pressure at the pump inlet, then it is certainly possible to calculate the pressure at the pump outlet.
The simplest and most effective method is to install a meter for direct reading. Secondly, it is calculated based on the pump’s performance curve and the medium in the operating environment. Finally, it can be inferred based on experience.