Centrifugal pump outlet line pressure
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This post was last edited by SuperFree2316 on 2011-8-8 08:32. There is a centrifugal pump of the model XBD16/108-PD, with a head of 160 meters and a flow rate of 388.8 cubic meters； Motor model: YB2-355M2-4, power 250KW, speed 1480 revolutions per minute. The pump’s inlet pipeline is DN300, while the outlet pipeline is DN200. What is the maximum pressure that can be reached in the outlet pipeline in Mpa?
1.6 MPa plus the static pressure at the pump outlet
It should be the inlet pressure plus the pressure difference resulting from the elevation of 160 meters for the medium being transported.
Reply to 2# bingxuerui: Agree with what was said on the second floor
By examining the performance curve of this pump, it can be seen that the maximum head is greater than 160 meters, around 193 meters; thus the maximum pressure at the pump outlet is 18.67 MPa. However, at this point the pump’s flow rate is very low, and its efficiency is quite low.
The time of greatest pressure is when the flow rate through the outlet valve is at its lowest; it must be greater than 1.6 MPa
:) Learned new knowledge again!~~~