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Self-priming automatic electric pumps with helical gears, produced by Marco.

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Can I reverse the direction of flow on my oil pump - RESOLVED

Can I change the direction of flow by simply reversing the positive and negative connection to the UP2 oil pump ? The direction is backwards for my application in where it needs to be mounted.

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Do you know the construction of the pumps impeller?

Many are directional so while you might be able to run it backwards you lose the effectiveness of the pump!

Maybe you need to look as the piping to it, can you reverse the connections?


They look like bronze helical gears and piping the system another way is unfortunately not possible. It would be sloppy and cumbersome looking.


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It’s been confirmed by the manufacturer. It’s okay to reverse the wires going to the pump to Reverse the direction of flow. The discharge side will become the inlet side.

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Paul Cioletti wird auf ewig dankbar sein.

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