RO question

[Nemo5]

If you’re close to Canada princess auto has a 3hp with a 56hc frame which is pretty much same as 56c.
https://www.princessauto.com/en/deta...or/A-p8601668e
https://www.grainger.com/tps/motors_...onal_chart.pdf


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[Minnesota Tapper]

Nemo5 thanks for that. I see they have a sealed and also a drip proof motor in the right size. I'm in central mn. Shipping estimator is $100. Which I'd pay for a good motor but I'm a little hesitant. Never heard of princess auto or power fist motors. There must be a reason baldor,marathon,weg,dayton motors dont make a 3hp 1 phase 56c in 1725 rpm. I'll make some calls tomorrow. Thanks!

[wiam]

Nemo5 thanks for that. I see they have a sealed and also a drip proof motor in the right size. I'm in central mn. Shipping estimator is $100. Which I'd pay for a good motor but I'm a little hesitant. Never heard of princess auto or power fist motors. There must be a reason baldor,marathon,weg,dayton motors dont make a 3hp 1 phase 56c in 1725 rpm. I'll make some calls tomorrow. Thanks!

I have bought some hydraulic parts from Princess and had no problems.

[Minnesota Tapper]

Unfortunately the baldor has a 184t frame. Procon mount fits 56c. I'm going to research the power fist one.
I'd like to map out my pumps and lines on paper and get a parts list going for fittings etc. I'm going to do 2 membranes in series for now. In the future what could I add to this ro that the 660 would properly handle? If I put a tee after the procon with one side of the tee feeding the 2 membranes I will use now, can I add a line off the right side of the tee in the future? Going to another bank of 1or2 more membranes in series? Or would the pump only be able to keep up with 3 membranes in series? Just want to plumb in hard fittings now for future provisions if I can.

[neil2fish]

MT, I just finished a second season on a homebuilt very similar to what you're proposing. After talking with the fellas at MES we went with a 3 post pyramid - two in parallel with the combined concentrate feeding #3 in series. I put a Procon 360 on a 2hp 56C. I believe I was told that you cannot get a 56C above 2hp... ? I found that i don't need any more than 2. The 4040 MES membranes I'm running are rated for 120gph with 70 degree water. Cold sap knocks that down a ton so I have at least 33% more pump than I need and then some. I have my motor on a VFD and use it like a throttle. At 40hz I can pull 66% water@ 275psi, with a concentrate flow very near 50gph.(depending on ambient temps) With this setup we can add another post in series using the same equipment. I find that when my membranes are fouling I can recirc raw sap back to my feed tank at about 50psi for ten minutes or so and get a nice rinse and restore performance without having to use permeate. I played with a recirc loop this year and see a use for it when you want to go higher concentration single pass. Like others have stated, however, I think my best efficiency comes when I'm running straight through and getting 1.5-2 gpm permeate regardless of concentrate flow. The number that counts is GPH water removed...

Like you, the more I learned, the more uncertain I was. Hope this helps.

[Minnesota Tapper]

neil2fish I find your comment," the more I learn the more uncertain I am,"so accurate I laughed. Thanks for the rundown of your system. Sounds like a nice balance. I'll remember the tip of flushing with sap for 10 minutes if needed. That's a dang good idea. I agree at least in the u.s. the 56c frame does not go above 2h.p. Bet I spent 4 hours on the web and grainger catalogs etc looking for one. Pretty sure I'm better off in the long run with a strong 2 h.p. Theres only a tiny area at the max gph and max psi on procons flow chart that requiress over 2 h.p. Sounds like I'll be fine anyways without the 3hp. I found some nice quality stainless hi/low shutoff sensors at automationdirect.com. MPS25-1C-P500A and MPS-1C-D60A.
Can anyone recommend a source for the high pressure hoses? I dont care to use the clear vinyl high pressure water hoses. Dont trust them. I'd prefer stainless braided or something along those lines in the 250 or higher working pressure range. Unless theres a better option I'm not thinking of. Drinking water safe of course. Appreciate all the advice given so far. Enormously helpful!

[Mead Maple]

Yeah just something to keep in mind I'd say. If you have a large sugar house with it's own breaker panel probably not a big deal if you've got ample power to it. As of right now I would just keep the Genny near by to run everything since I'm a few years away from building my permanent sugar house.