+ Reply to Thread
Results 1 to 10 of 10

Thread: procon pumps

  1. #1
    Join Date
    Mar 2011
    Location
    Lancaster NH
    Posts
    121

    Default procon pumps

    Thinking of upgrading my home made RO system pump to a procon stainless 150 gph, and have a question about the rating of 150 gph . Im thinking that this refers to wide open unrestricted flow. Does any one have an idea what it would be pinched down to 150 psi.


    thanks
    44 27'08/71 27'56
    300 totalish taps 250 on tube and bosworth sap sucker
    50 bucket and bags about 40-50 gallons a season
    on a 2 by 7 home made evaporator and sugar shack
    1st gen circa 1966 still learning stuff

  2. #2
    Join Date
    Jan 2020
    Location
    Canaseraga ny
    Posts
    27

    Default

    Procon style pumps are positive displacement rotary vane pumps. This means that there is a definitive amount of fluid with each revolution achieving the rated GPM. This pump curve changes very little with pressure up to the rated maximum. I run a pro con 240 that is rated at 250 PSI. The difference when u increase PSI is the work that the motor has to do under load, not the GPM as that should be similar along the entire curve. With a lower pressure, you should be working your motor less and increasing the workload as you get closer to that 250 PSI max rating. Anyone else feel free to correct me if I did not state any of that correctly.
    Belle Hollow Syrup
    Canaseraga, NY

    325 Taps
    Smoky Lake Hybrid 2x4
    100 GPH RO
    Oil barrel Arch

  3. #3
    Join Date
    Mar 2011
    Location
    Lancaster NH
    Posts
    121

    Default

    [QUOTE=Bellehollow;396598]I run a pro con 240

    What do you run for motor hp for the 240
    44 27'08/71 27'56
    300 totalish taps 250 on tube and bosworth sap sucker
    50 bucket and bags about 40-50 gallons a season
    on a 2 by 7 home made evaporator and sugar shack
    1st gen circa 1966 still learning stuff

  4. #4
    Join Date
    Jan 2020
    Location
    Canaseraga ny
    Posts
    27

    Default

    3/4hp with a 1/2hp shallow well feed pump. The 3/4hp is slightly undersized when I push the 250 psi but works. Somewhere there is a procon chart that spells out motor requirement at different system operating pressures.
    Belle Hollow Syrup
    Canaseraga, NY

    325 Taps
    Smoky Lake Hybrid 2x4
    100 GPH RO
    Oil barrel Arch

  5. #5
    Join Date
    Feb 2017
    Location
    NY
    Posts
    80

    Default

    A 140gph pump will do 128gph at 250psi (i'm not sure they make a 150gph series 4 or 5). The max horsepower on the 140 is .64hp.
    The 240gph will do 228gph at 250psi, and max hp is .86.

  6. #6
    Join Date
    Mar 2011
    Location
    Lancaster NH
    Posts
    121

    Default feed pumps

    Are feed pumps required when using procon pumps or can they be gravity feed successfully?
    44 27'08/71 27'56
    300 totalish taps 250 on tube and bosworth sap sucker
    50 bucket and bags about 40-50 gallons a season
    on a 2 by 7 home made evaporator and sugar shack
    1st gen circa 1966 still learning stuff

  7. #7
    Join Date
    Jan 2020
    Location
    Canaseraga ny
    Posts
    27

    Default

    Not required as pro cons are self priming, but highly susceptible to damage when run dry. I would say highly recommended running a feed pump from what I have seen on here. Only caveat may be how much head pressure you have on your pump intake side.
    Belle Hollow Syrup
    Canaseraga, NY

    325 Taps
    Smoky Lake Hybrid 2x4
    100 GPH RO
    Oil barrel Arch

  8. #8
    Join Date
    Mar 2011
    Location
    Lancaster NH
    Posts
    121

    Default

    [QUOTE=Bellehollow;396607]Not required as pro cons are self priming, but highly susceptible to damage when run dry. I would say highly recommended running a feed pump from what I have seen on here. Only caveat may be how much head pressure you have on your pump intake side.[/QUOTE

    I will be flooded on the suction as the feed tank is about 5 foot over pump. Would something like a surflo pump help?

    thanks for the input
    44 27'08/71 27'56
    300 totalish taps 250 on tube and bosworth sap sucker
    50 bucket and bags about 40-50 gallons a season
    on a 2 by 7 home made evaporator and sugar shack
    1st gen circa 1966 still learning stuff

  9. #9
    Join Date
    Feb 2014
    Location
    Orford Quebec
    Posts
    29

    Default

    The larger procons series5 and 6 need a feed pump, the smaller ones run fine on gravity, the advantage of a feed pump is a low pressure switch to shut the whole system down you run out of sap

  10. #10
    Join Date
    Jul 2012
    Location
    Lawrence County Ohio
    Posts
    255

    Default

    here's the spec sheet from their website http://www.proconpumps.com/content/S...0Pump_spec.pdf
    2012 15 jugs
    2017 125 3/16 -18"x 6' drop flue, home made arch
    2018 240 3/16 -Deer Run 125 RO
    2019 450 3/16 -converted RO to electric, added a membrane
    2020 600 3/16 -Maple Pro 2x6 Raised Flue, added AOF/AUF
    2021 570 3/16 -built a SS steam hood, new Smoky Lake SS filter press

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts