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member 2009 Sponsor |
Nice find Brian,
I can't read the pump model number in the pic. Is that a GL in the first pic on the front of the pump, left of the suction? |
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Member |
Thanks Double D,
Model # 1 1/4xSC Spec # 0957800 Serial #706283 AV Seal # 44054 <----Doh! My lack of awareness; I didnt catch the seal # till just now. I still would like to know what I have, tho. The impeller housing has # 39777 on the discharge stem. Left of the suction is some turbine logo. I hope it's not obsolete.   Also is the task of coupling 7/8" shaft to 5/8" shaft. Lovejoy, universal joint or solid coupler? Brian 1996 K2500 4x4 6.5TD |
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Member |
In my opinion you cant go wrong with a Love Joy coupler, easy on the shafts and bearings...
The mechanical seal is likely somewhat standardized and once it goes you can just take the seal to a pump shop for a replacement... No guaranties though...  Good luck! Jon |
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member 2009 Sponsor |
Hi Brian,
It looks like the pump is a Marlow. Here is a link to http://www.marlowpumpsonline.net/AboutUs.asp I couldn't find that particular pump but there is questions/contact option. HTH. I used a lovejoy on my pump/motor and it's still going and seems stable. |
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Member |
Thank you very much!
They offer a lot of info on their site. Shouldn't be a problem if I ever need parts. I guess I'll get the spare from the guy as well. That was a lot of help, and thank you again! Brian 1996 K2500 4x4 6.5TD |
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member 2009 Sponsor |
Your welcome,
I don't know about how well the Bronze impeller will hold up but maybe they offer a 5.4" in Cast Iron or SS? Just a thought. |
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Member |
Ya, he, I Hope it will stand up as long as the return of investment ~2000 to 3000 gallons, say.
I found the right love joy couplers at Rural King (farm store), but they didnt have the rubber spider. I'll get them all at once so I can dry fit them and look at them in the store. I'm weird like that. Im thinking now on using the Marlow on the 66gallon HWH tank I modified.  It's been in this state of completion since last winter. Too much pump maybe? Could do a bypass... B 1996 K2500 4x4 6.5TD |
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member 2009 Sponsor MurphysMachines.com |
Make sure the suction port at the bottom of your reactor is at least 1 size larger than the suction port on the pump.
Its not to much pump.. should complete the job within 30 to 45 minutes easily if all other parameters are correct. www.MurphysMachines.Com The best Do-it-Yourself Construction Plans on the Internet! Waste Oil Heating - Biodiesel Systems |
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Member |
Thanks Murphy, The pump suction port is 1.5". I have some 2" weld-o-lets on hand. Where do you suggest I put the reducer? At the pump suction port and run all 2" pipe and valves? (circulation loop - suction). I can drain the impeller housing, but this seems like the pipe would hold residual fluids, being reduced just before the pump. hmm, unless I tee/reduce it right there for drain. Any tee offs can be reduced to 1" or 3/4". I have plenty of that size stuff. I mean for methox injection, sight tube and glycerin drain/oil inlet. What are your thoughts on discharge size? The pump is 1.25" discharge. I have everything to build the processor @ 1" including a Rigid threader. Too small diameter? TIA Brian 1996 K2500 4x4 6.5TD |
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Member |
There is NO such thing as too much pump on a bio processor, the more pump the better mixing the shorter time to passing 3/27, if you can turn your volume over once or twice a minute you will be WAY ahead of the crowd.
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Member |
IMHO the best way to mount a process pump like this is vertically with the motor above the pump, that way if there is ever a seal failure your motor will not be flooded and toasted, also glycerine will flow flow out of the pump housing when your drain it.
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Member |
fabricator,
I understand, do you think I should keep the discharge at 1.25" dia.? I can also put radial bend on pipe to eliminate 90*s. 1996 K2500 4x4 6.5TD |
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Member |
Yes, keep the discharge at 1.25 and anytime you can eliminate a 90 do it, a 90 is the same as approximately 10 feet of pipe, it is also a good idea to put flanges or unions and valves on each side of the pump in case you have to take it out for service.
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Member |
Yes,
I call these isolation valves, worth the investment. I have a Wayne pump in the shop now after losing yield on my last batch. My current tank has one as well. 1996 K2500 4x4 6.5TD |
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member 2009 Sponsor MurphysMachines.com |
Suction line reduction should be done right next to the pump. If you are using fewer than three 90 deg elbows and less than 10 feet between the pump discharge and the tank return then you can get away with plumbing whatever size the pump discharge is. www.MurphysMachines.Com The best Do-it-Yourself Construction Plans on the Internet! Waste Oil Heating - Biodiesel Systems |
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member 2009 Sponsor MurphysMachines.com |
One more comment.
I would not use an open drip type motor on a biodiesel system and I'm not a fan of mounting open drip type motors in a vertical position because it disables parts of the design characterisitics. Is that a 3 phase motor on there? Do you have 3 phase power available? www.MurphysMachines.Com The best Do-it-Yourself Construction Plans on the Internet! Waste Oil Heating - Biodiesel Systems |
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Member |
It will be installed horizontally.
But I am considering your plumbing suggestions. I have a rotary phase converter and a dry phase converter. I also have other motors of the same RPM I could use, including explosion proof. Thanks for all the replies. Brian 1996 K2500 4x4 6.5TD |
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Member |
This is just an opinion. A few extra elbows or a little restriction on the discharge side of the pump is not a problem on a biodiesel processor. Mixing by any means, like a few extra elbows, is just as important as GPM. I have seen a valve used to create a restriction to increase the violent mixing in a pump.
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Member |
fuelfarmer,
that sounds very logical, especially looking at the construction of eductors. I have 1.5" eductor, but my discharge is 1.25". The eductor outlet is like 3/8" or 1/2". I've dismantled a 1500 gallon SS processor to find a 3' length of .5" chain in the vertical discharge pipe. I'm considering this as type of static mixer, but not sure if these gadgets are necessary with high shear mixing. Brian 1996 K2500 4x4 6.5TD |
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