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Thread: R.O. high pressure hose

  1. #1
    Join Date
    Jul 2018
    Location
    Minnesota
    Posts
    45

    Default R.O. high pressure hose

    What is a good 1/2" hose to use for the high pressure side of an r.o.? I see some using plastic reinforced water lines with hose barb fittings/hose clamps. I worry they would slip off the hose barb fittings under pressure. Would s.s. hose barb fittings with hose clamps have better grip on the hose than plastic barbs? I'll be using a procon 660 and it says up to 250 psi. The best hose I can find is rated for 200psi working pressure at 70.° however it does say the burst pressure is 4 times higher.

    Link to hose: https://www.usplastic.com/catalog/it...x?itemid=44394
    Thanks for any advice.

  2. #2
    Join Date
    Mar 2009
    Location
    milton ontario
    Posts
    120

    Default

    I used pex pipe with shark bite fittings on my old ro and it worked at 250 psi. It's not rated for that but it worked.
    3x12 Grimm
    1200 on vacuum
    woodmizer LT40HD25
    6 little sap haulers
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  3. #3
    Join Date
    Mar 2015
    Location
    Peoria, IL
    Posts
    597

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    I would keep looking for appropriate rated hose. If an underrated hose burst and the RO be down for a day or 2 you would sure be sorry

    Also all the fitting on the high pressure side of my RO are stainless.
    Last edited by mol1jb; 01-18-2020 at 07:35 PM.
    Camp Wokanda
    Peoria Park District

    2020 - 210 taps 3/16 shurflo, upgraded hp pump on RO - 66 gallons
    2019 - 150 taps 3/16 shurflo, Deer Run 125 dolly RO - 73 gallons
    2018 - 120 taps 3/16 hybrid (shurflo), 2x6 raised flue w/hood, homemade arch w/ AUF & AOF - 34.5 gallons
    2017 - 60 taps 3/16 gravity, oil tank arck w/ steam pans - 12.5 gallons

  4. #4
    Join Date
    Mar 2015
    Location
    Peoria, IL
    Posts
    597

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    https://www.google.com/aclk?sa=L&ai=...BAgLEEM&adurl=

    Here is some 1/2 inch hose rated at 250psi
    Camp Wokanda
    Peoria Park District

    2020 - 210 taps 3/16 shurflo, upgraded hp pump on RO - 66 gallons
    2019 - 150 taps 3/16 shurflo, Deer Run 125 dolly RO - 73 gallons
    2018 - 120 taps 3/16 hybrid (shurflo), 2x6 raised flue w/hood, homemade arch w/ AUF & AOF - 34.5 gallons
    2017 - 60 taps 3/16 gravity, oil tank arck w/ steam pans - 12.5 gallons

  5. #5
    Join Date
    May 2006
    Location
    New Hartford, N.Y.
    Posts
    1,982

    Default

    I opted for an actual high pressure hose made at a local high pressure/hydraulic shop when I rebuilt my RO back when I bought it. It is a braided stainless casing with food grade nylon tubing inside of it, with threaded stainless fittings on both ends. However, my unit runs at a higher pressure than yours. But piece of mind is a nice thing too. Sometimes paying a little more for something better isn't a bad thing. A lesser hose, under any pressure, is both a potential leak and potential projectile.

    Steve
    2014 Upgrades!: 24x40 sugarhouse & 30"x10' Lapierre welded pans, wood fired w/ forced draft, homemade hood & preheater
    400 taps- half on gravity 5/16, half on gravity 3/16
    Airablo R.O. machine - in the house basement!
    Ford F-350 4x4 sap gatherer
    An assortment of barrels, cage tanks & bulk tanks- with one operational for cooling/holding concentrate
    And a few puzzled neighbors...

    http://s606.photobucket.com/albums/t...uckethead1920/

  6. #6
    Join Date
    Jul 2012
    Location
    Lawrence County Ohio
    Posts
    215

    Default

    I used the braided food grade hose from Amazon in 1/2" and 3/4" when I upgraded my Deer Run 125 gas pump to 1 1/2 hp electric, procon 330 and added a membrane. I used the Stainless npt-ins fittings from Amazon. It's hard to find good hose clamps these days. I went to three different hardware stores before I found the ones I like, the ones Lowes carries now aren't even stainless.

    I run my RO up to 275 and have not had an issue with the hose. I did blow the bottom torque ring off one of the vessels wen my 2 1/2"x 10" filter cartridge imploded and sucked into the pump and membrane. It didn't hurt any of the hoses, stainless or schedule 80 PVC fittings. I upgraded my filter to a 4 1/2"x20". I usua;;y run 600 gallon of sap, but after the RO impleded, had to order a new pump, filter and membrane- the permeate tube broke off when the torque ring came off- I was down for a week, luckily we were froze up, when it thawed, I ran 1200 gallon through the 4 1/2"x20" and everything ran fine. The stainless fittings, tees, elbows from Amazon are of terribly poor quality, and require a LOT of the heavy duty stainless double thick teflon tape. It took me 3 or 4 runs to stop all the leaks. I swapped a few of them out with schedule 80 from Lowes.

    Where did you get your 660 from? I'm goin to upgrade to that pump or a Goulds next year and add another 2 membranes.

    Ben
    2012 15 jugs
    2017 125 3/16 -18"x 6' drop flue, home made arch
    2018 240 3/16 12 bags -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



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  7. #7
    Join Date
    Mar 2009
    Location
    North Augusta
    Posts
    90

    Default

    Hi

    Try these. I use them at 250 psi for 3 years on home built ROs.

    https://www.plumbingsupply.com/flexes.html

    Stainless rated by 200 psi, you can by different sizes. I always by an extra couple but have never need them. I got this tip from bricklayer

    You won’t be disappointed

    Thanks
    Darrell
    Powered by oil fired 3X8 Lapierre cooker
    736 taps
    330 GPH RO
    Auber Auto Drawoff
    Lapierre Siro Filter
    2 adult kids
    2 dogs
    "memories of the old way"
    Kioti CK27
    Facebook Halladaymaple

  8. #8
    Join Date
    Mar 2011
    Location
    North Grenville, Ontario
    Posts
    775

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    The hoses from plumbing supply work awesome. They have a true 1/2” diameter and there is no restriction in flow. Originally I just had one of these a 60” flex to feed my membrane. But I have since upgraded all my hoses on my RO to these stainless flex hoses. I probley got rid of 6 90 degree fittings in doing so. My flow increased a lot. And I have 0 leaks.
    400 taps on vacuum
    Lapierre Releaser
    2x5 Phaneuf
    Auber auto drawoff
    Homemade arch with AUF
    Homemade RO single 4" MES 4040 membrane
    CDL 16 x 16 bottler
    Wesfab 7" short bank filter press
    Delaval 73's

  9. #9
    Join Date
    Jul 2018
    Location
    Minnesota
    Posts
    45

    Default

    Thanks all, I think I will go the stainless route. bmbmkr I lucked out and found my pump on eBay. A large company was getting rid of extra inventory. Brand new I paid just under $200. Its nice to get lucky once in awhile!

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