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Thread: CPE "Dry Hopper" pump (MH-20HIS)

  1. #1
    Join Date
    Feb 2013
    Location
    Anaheim, CA
    Posts
    16

    CPE "Dry Hopper" pump (MH-20HIS)

    Was hoping to get some feedback on this dry hopping pump from CPE Systems. If anyone has experience or purchased this unit, I'd love to hear how well it works.

    https://www.cpesystems.com/collectio...ping-equipment


    Thanks,
    Mike

  2. #2
    Join Date
    Jan 2015
    Location
    Gulfport, MS
    Posts
    12
    I bought one. The results have been mixed so far but we've only had it for about 3 weeks. It works great for adding fruit puree. We haven't quite figured out the art of dry hopping with it yet. CPE said they should go in dry with no issue. We can't get it to work that way, however we have been able to let beer back up into the hopper to create a slurry with the hops and they go in much easier. We did go with the slightly bigger pump and I'm very pleased with the pump itself. We just haven't quite figured out the hopper yet. I'm curious as to if anyone has had any luck getting the hops to go in without making a slurry.

  3. #3
    Join Date
    Feb 2013
    Location
    Anaheim, CA
    Posts
    16
    I'm assuming the bottom of the hopper is getting clogged or the pellets are getting stuck?

    So the theory was it worked like a Venturi sucking the pellets down into the recirc line. Also, I'm assuming the hopper is under pressure in order to not let beer back up. If you are doing a slurry, could it hold 44# to make a slurry that wouldn't clog the bottom T?

    I know they also have a shredder pump but the sales guy said he wouldn't recommend that one. Plus the pump can only be used for shredding and not around the brewhouse.

  4. #4
    Join Date
    Jul 2012
    Location
    Burnaby BC Canada
    Posts
    322
    Quote Originally Posted by GulfSide View Post
    I bought one. The results have been mixed so far but we've only had it for about 3 weeks. It works great for adding fruit puree. We haven't quite figured out the art of dry hopping with it yet. CPE said they should go in dry with no issue. We can't get it to work that way, however we have been able to let beer back up into the hopper to create a slurry with the hops and they go in much easier. We did go with the slightly bigger pump and I'm very pleased with the pump itself. We just haven't quite figured out the hopper yet. I'm curious as to if anyone has had any luck getting the hops to go in without making a slurry.
    We have heard this from other customers as well, so we have added a pneumatic vibrator to help feed the hops in and eliminate the bridging problem you mention. If you contact us we can send you one at no-cost that you can easily install on your hopper.
    Your CPE Systems Team!
    CPE Systems Inc.
    800-668-2268
    CPEsystems.com
    Thinkpumps.com
    sales@cpesystems.com

  5. #5
    Join Date
    Apr 2014
    Location
    AUS
    Posts
    142
    Quote Originally Posted by GulfSide View Post
    I bought one. The results have been mixed so far but we've only had it for about 3 weeks. It works great for adding fruit puree. We haven't quite figured out the art of dry hopping with it yet. CPE said they should go in dry with no issue. We can't get it to work that way, however we have been able to let beer back up into the hopper to create a slurry with the hops and they go in much easier. We did go with the slightly bigger pump and I'm very pleased with the pump itself. We just haven't quite figured out the hopper yet. I'm curious as to if anyone has had any luck getting the hops to go in without making a slurry.
    This hopper looks similar to the Rolec DH range of dry hoppers. They are fairly easy to use, but they are sensitive to pressure differentials. We set or hopper chamber to 15psi and the FV to 14.5psi with no pump running. Note that the FV pressure is the pressure on the inlet of the dry hopper AND NOT the pressure gauge on the FV. Once you turn your pump on, cock your inlet butterfly valve to about half, you will see the inlet pressure drop. This will allow for the beer passing underneath the dry hop chamber to not enter the hops chamber.
    Open the valve underneath the dry hop chamber fully and keep adjusting your inlet butterfly valve to regulate the amount of hops/beer flow. You will note that if the dry hopper chamber has too much pressure, it will keep blowing CO2 into the beer stream and no hops. If your inlet beer pressure is too close to the pressure of the dry hopper, no pellets will go into the beer stream and beer will likely fill the dry hopper chamber etc. etc.

    Hopefully this helps. PM me if you need more help.

    Cheers

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