The outlet diameter of the horizontal double-suction single-stage centrifugal pump is 350, and the pipe connection diameter is 800. Will this affect the head?
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The pump has a flow rate of 1600 m3/h and a head of 55 meters; the outlet diameter is 350 mm and the pipe connection diameter is 800 mm. Is that acceptable? Does it affect head? I’m seeking help from all the experts! !
It has no impact, but the outlet valve needs to be well controlled, as it can easily become overloaded
Generally speaking, changes in the outlet pipe diameter have little impact on the operation of the pump; if the requirements are not high, it will not have a significant effect on the pump. If the flow rate of the pump is kept constant and the diameter of the pump inlet remains unchanged, while the diameter of the outlet pipe is increased, the flow velocity of the fluid will decrease. The resistance in the outlet pipeline will reduce, which in turn will result in a slight increase in the pump’s head pressure. If the pipe diameter is too large, it is necessary to adjust the valve so that the pump operates at a normal flow rate; otherwise, if it operates at a high flow rate, the head pressure will definitely be low. When the outlet diameter is larger, the flow velocity of the liquid decreases, which means the liquid stays in the pipeline for a longer time; this has an impact on the temperature of the pipeline, and special fluids may experience crystallization or decomposition. Please correct me if there are any mistakes in what I said