Self priming motor and pump suggestion please

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M

m12ltm

Member
Jul 30, 2023
11
Texas
Hi there,



I currently have Hayward NorthStar SP4000 Series Pump (2008-Current) pump housing a B966 motor.

This is a 3HP motor with a 56J frame round flange, 230 volts 13.8 AMP single phase, 1.15 Service factor 3450 RPM. This houses the SPX4025CKIT Impeller (25C2).



I am looking for advice for a replacement. It would be great to keep the existing housing however coming to end of life so not opposed to re-piping to introduce a different model.



My pumps only last 3 years. They get very warm here in south Texas and are very loud. The pool equipment is a distance away and a couple of feet above the water line, so must be a good self-primer. I have installed check valves and have a faucet to easily prime the pump with a hose but looking for suggestions on the best self-priming pump to replace my setup.



Many thanks,



Lance . . .
 
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m12ltm said:
Hi there,



I currently have Hayward NorthStar SP4000 Series Pump (2008-Current) pump housing a B966 motor.

This is a 3HP motor with a 56J frame round flange, 230 volts 13.8 AMP single phase, 1.15 Service factor 3450 RPM. This houses the SPX4025CKIT Impeller (25C2).



I am looking for advice for a replacement. It would be great to keep the existing housing however coming to end of life so not opposed to re-piping to introduce a different model.



My pumps only last 3 years. They get very warm here in south Texas and are very loud. The pool equipment is a distance away and a couple of feet above the water line, so must be a good self-primer. I have installed check valves and have a faucet to easily prime the pump with a hose but looking for suggestions on the best self-priming pump to replace my setup.



Many thanks,



Lance . . .
Click to expand...
You would be better off replacing the entire pump. There are no 3.45THP variable-speed motors available that will fit a NorthStar pump because of the way the wet-end goes together. The Nidec Neptune NPTT345 motor has the correct mounting frame, but the location of the drive would prevent the locking ring on the wet end from closing. Motors made for the NorthStar were (are) special made for them. The location of the capacitor housing to the side is one example. The service factor was always higher as well.
 
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