Talk pumps to me. Wanting an 8gpm.

Roy Sanders

Roy Sanders

New member
I am trying to put this machine together and I think I have most of it lined out. This will be my first machine that I have built. I thinking of buying the 19 horse Kohler and put an 8gpm pump on it. I know I won't get the full psi of an 8 gallon pump but that is okay. Not an issue with that. However when looking at alot of these pumps some of them are just under and some are over 8gpm. I hear alot of these pumps are overrated from the factory. How much are we talking. Are we even talking a half a gallon per min. I am looking at the following pumps.

Udor pumps GKC3020s 8 gpm @3000psi 1450rpm & GKC3024s 8gpm 3600 psi 1450rpm.

General TSF2221 8.5gpm 3000psi @1450rp, & TSF2219 7.7gpm 3000psi @1450 OR 9.3 3000psi @1750 rpm.

AR pump XWAM8G35N 8gpm 3500psi @1750rpm.

I am sure I am making this harder than it needs to be but I just need to make sure I am getting a good pump and one that will serve the purpose. I hear good things about Udor and General pumps but don't know much about AR. AR is the cheapest of them all, not that it makes alot of difference. So how much drop of per gpm should I expect from a pump. I am looking pretty hard at the Udor's and the Generals just because I have heard more positive things about them. Are they all pretty comparable pumps in the end?
 
I like the AR over the General
 
Any of the major brands will work fine for your application what you need to look at is the cost of rebuilds. If using a gear drive make sure its output rpm is close to the same rpm the pump is rated to spin, If a belt drive make sure your pulleys are matched for the right rpm. the gpm shouldn't be more than a plus/minus of 5% if spinning at the proper rpm. All of the pumps I have are really close to the advertised gpm and we have all the major brands.
 
greg/sd said:
Any of the major brands will work fine for your application what you need to look at is the cost of rebuilds. If using a gear drive make sure its output rpm is close to the same rpm the pump is rated to spin, If a belt drive make sure your pulleys are matched for the right rpm. the gpm shouldn't be more than a plus/minus of 5% if spinning at the proper rpm. All of the pumps I have are really close to the advertised gpm and we have all the major brands.
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Thanks. That answers that question for me.
 
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