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Thread: centrifugal pump operation

  1. #1
    Associate Engineer
    Join Date
    Oct 2015
    Location
    Israel
    Posts
    1

    centrifugal pump operation

    Hello,

    I really need your help:

    I have a liquid filling machine that produces coolant fluid. the centrifugal pump (its parameters i can provide) sucks the liquid from the bottom of an IBC container. the bottom of the IBC is more or less at the same hight as the pump.
    this is a small batch system that is not very operational since the demand is high for the coolant fluid.

    Therefore a tank was constructed[4m3]. when it is full, the liquid level is 4 meters above the pump.

    My worry is that because of the big hight difference the liquid pressure will over-flud the pump even if it is not operating and the liquid will pour out of the machine without any control.

    I havent tested the tank yet, so my question is what do i need to do in order to know will the pump hold the pressure or not?

    Thanks very much.
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  2. #2
    Technical Fellow Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,625
    You need to determine the rated "Head Pressure" of the system and pump. The pump head pressure should exceed the fluid pressure and provide rated flow as required.

    See:

    Head Pressure Overview and Equations

    Head Loss Darcy and Weisback Equations and Calculator
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

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