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Thread: Gast pump questions

  1. #1
    Join Date
    Feb 2017
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    Richmond NH
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    Default Gast pump questions

    I have a couple questions about gast pumps. I'm looking at buying a 1550 for my small Bush. Specifically this one:
    https://www.ebay.com/itm/Gast-Oil-le...cAAOSwAQBauWN9

    It looks like this one is configured as a "compressor" rather than a vacuum pump. After looking at the gast site it looks like the only difference I see is the vacuum pump comes with different filter and a muffler. Can they be used in either configuration?

    Also, this pump is rated at 1440rpm. I would think that is just for 50hz motors. The bearing and rebuild kit is the same for every 1550. Would it be alright to just run it at 1725 rpms?

    Screenshot_20200114-071007.jpg

    Screenshot_20200114-071001.jpg

    Thanks for any help.
    smoky lake 2x4 hybrid pan on homemade arch
    Hope to have 200+ for 2020 on vac
    24x12 sugar house
    2019 Kubota L2501 work horse

  2. #2
    Join Date
    Feb 2017
    Location
    Richmond NH
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    Default

    Here's the link to the gast site with all the specs. Pages 29 and 30 are the 1550

    http://gastmfg.com/uploads/catalogs/...2012_lores.pdf
    smoky lake 2x4 hybrid pan on homemade arch
    Hope to have 200+ for 2020 on vac
    24x12 sugar house
    2019 Kubota L2501 work horse

  3. #3
    Join Date
    Feb 2017
    Location
    Richmond NH
    Posts
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    Default

    Any info at all is appreciated
    smoky lake 2x4 hybrid pan on homemade arch
    Hope to have 200+ for 2020 on vac
    24x12 sugar house
    2019 Kubota L2501 work horse

  4. #4
    Join Date
    May 2011
    Location
    Chatham NH
    Posts
    1,160

    Default

    Gast pumps are good. Not sure how many taps you are looking to hook up, might consider a 2567 , those are direct mounted to a 1-1.5hp motor, the one you are looking at looks belt driven? Also that pump looks to only pull 20" , I would go for something that will get you up to 25-28" of vacuum
    Last edited by n8hutch; 01-16-2020 at 06:47 AM.
    Nate Hutchins
    Nate & Kate's Maple
    2018 1000 taps?
    20x36 sugarhouse
    CDL 600gph RO
    Franken evaporator, lapierre arch, smokylake pans and a leader hood with pre-heater.
    A wife and 2 kids.

  5. #5
    Join Date
    Mar 2017
    Location
    Vermont
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    Default

    Below pump is a much better deal and pulls 28 pounds and 16 cfm.
    https://www.ebay.com/itm/GAST-MFG-CO....c100930.m5375
    2016- 50 buckets. Made 4 gallons
    2017- 100 buckets, 50 taps on 3/4 mainline and 3/16th tubing + shurflo vacuum. Made 30 gallons.
    2018- 1000 taps on 3/16 + vacuum, 60 buckets - made 378 gallons of syrup.
    2019- 1713 taps on 3/16 + vacuum, NO buckets. Made 500 gallons.
    2020- 2700?

  6. #6
    Join Date
    Feb 2017
    Location
    Richmond NH
    Posts
    206

    Default

    It's going to be on 200-300 taps Max. I was looking for a belt driven unit so I could run it off a gas motor. No electric at the site yet. After searching on here several people claim they are getting over 20hg with the 1550. Plus I like that it's oilless so I don't have to worry about that too.
    smoky lake 2x4 hybrid pan on homemade arch
    Hope to have 200+ for 2020 on vac
    24x12 sugar house
    2019 Kubota L2501 work horse

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