What is the union for?
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Hi, The Pump Union is to easily remove and install the pump for repairs and or maintenance work. That way you do not have to cut any pipe, you will unscrew the union.
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Will This work on a Flow Xtreme NE4515 pump.
or is there a female thread / 1-1/2" slip fitting that threads directly onto pump threads
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Hi Dave, Yes, it is compatible with Flow Xtreme NE4515 pump. It is both compatible with the internal inlet & outlet thread and the external inlet & outlet thread by taking some parts off from the union.
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Will this work with the Hayward super pump for Hayward Multiflow Valve?
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The PL1643 union will work with the Super Pump and multiport valve as long as they have 1.5" ports. The Hayward Super pumps that are less than 2HP should have 1.5" ports. Hayward multiport valves with numbers like SP710 and SP714 would have 1.5" ports.
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WILL THIS FIT HAYWARD SWIM PRO LX/SWIM PRO SPL SERIES PUMP MODEL
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Hello William. Yes, the PL1643 1.5" Male Threaded X 1.5" Slip union will fit the Hayward Swim Pro LX/Swim Pro SPL Pump model. The port size is 1.5".
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Will this fit a Pentair Superflo?
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Hello Dion. The 1.5" Male Threaded Pool Pump Union x 1.5" Slip Union - PL1643 is compatible with the Pentair SuperFlo. The Pentair SuperFlo has a 1.5" port size. The Union Kit for Pentair SuperFlo - 350157 is also compatible. Attached please find the Pentair SuperFlo Pump exploded parts diagram for reference.
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I always get confused about pipe threads. Why are the two male threads so different in size even though they are both 1.5”?
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The key is to remember that pipe sizing is indicated by the inside diameter of the pipe. The PL1643 threaded end fits into the 1-1/2" port on the pump and the other end is meant for a slip fit (glued) to a 1-1/2" PVC pipe.
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