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CIP Pump size

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  • CIP Pump size

    We are looking at buying a dedicated CIP pump for our brewery. And are a little confused on sizing. The pump will be used for cleaning 20bbl tanks and 5bbl tanks.

    We have been looking at a 2hp pump with a stainless steal head that is designed for 70m of lift giving 60psi.

    IS this way too strong for a CIP pump? I know our tanks are rated to 1bar or about 15psi, is that an issue?

    Any advice would be apreciated.

  • #2
    Its not so much pressure as it is flow rate for CIP, you should be looking for a pump that can supply the appropriate flow for the 20bbl tanks CIP. You need a pump curve so that you can factor the amount of head required to see if the flow will be there. In short, more info is required for this. There are several pump suppliers on here, I am sure they will chime in.

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    • #3
      Once you have selected your pump type you have to select the right size. Pick too small a pump and the problems will be obvious but picking too big a pump can be just as bad. Not only are you wasti…

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      • #4
        1 hp

        A 1 HP C-114 pump is good for typical 60 bbl vessel.
        You definitely do not need a 2 for your size.
        Warren Turner
        Industrial Engineering Technician
        HVACR-Electrical Systems Specialist
        Moab Brewery
        The Thought Police are Attempting to Suppress Free Speech and Sugar coat everything. This is both Cowardice and Treason given to their own kind.

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        • #5
          OK, thanks for the information. I have been offered the following pump, and spoken with another brewer down here in Peru who uses this.



          It's a stainless steel head and can push 350l/min. Is that sufficient flow for CIP on a 20bbl tank? I did check the link on sizing a pump, and have read through it, but it doesn't specifically mention CIP, and as we only plan to use this pump for CIP that's what we want to size it for.

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          • #6
            Originally posted by Wayki View Post
            OK, thanks for the information. I have been offered the following pump, and spoken with another brewer down here in Peru who uses this.


            We use it in Ecuador for our CIP, good enough. It has a stainless open impeller that prevents clogging.

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            • #7
              Check what the sprayhead requirements are - flow rate and pressure. Allow 1 bar for every ten metres the sprayhead is above the pump. For a small system like yours, line pressure losses are normally negligible. Add the height pressure required - probably around 0.5 bar (7 - 8 psi) to the spray head requirement.

              Then check the pump curve to see what flow rate it gives at the required total of sprayhead and height pressure. If the flow rate or pressure is less than required, then no, the pump is not suitable.
              dick

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              • #8
                Thanks Dick, that helps alot, however I am stuggling to find where to read pressure on the pump curve chart. There was one on that link, but I can't see pressure. Is it missing something or am I just not reading it right?

                By my calculations I need about 60 to 70psi.

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                • #9
                  The two dark lines that curve downwards are the pressure outputs plotted against the flow rate, for two different pumps, A and B

                  The vertical axis is expressed in metres of head (LH side) or feet heat (RH side), the bottom axis expressed in volume as litres / minute or metres cubed / hour.

                  If you have a conventional sprayball, I would expect you to need about 1.5 bar, equivalent to 15 metres / 450 - 50 ft at the spray head, plus a little for the vertical lift. Again, for a 20 brl vessel, I would expect the sprya head to be no more than 15 to 20 ft (5 - 6 metres) above the pump. In other words, I would expect you to require a pump output pressure of around 20 metres - 2 bar to suit the sprayhead. Nowq what flow rate you require is purely sprayhead dependent - so you need to refer to the operating specs for the sprayhead specified.

                  Sprayballs - typically around 1.5 bar at the head, but can be a bit higher.

                  Rotating sprayheads - 2.5 to 3.5 bar , but again, vary somewhat.

                  High pressure cleaning heads such as Toftejorgs, which you will not have fitted in a vessel this size - 4.5 to 5.5 bar at the head
                  dick

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