CFM and rotation of a leroi compressor?

by bob rossi
(hazleton,pa)

pump model k-350 Leroi Dresser compressor

pump model k-350 Leroi Dresser compressor

pump model k-350 Leroi Dresser compressor
Leroi Dresser compressor
Leroi Dresser compressor motor
Leroi Dresser compressor information plate

hi bill,

pump model k-350
5hp 3 phase converting to 5hp single phase
horizontal 120gal

1.do you info on cfm's?

2.i have only single phase power how can i check which way new motor is run cw or ccw no arrows on fly wheel,i have parts manual which says there was decal for rotation but long gone.



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Jun 17, 2016
Single phase verses Three phase
by: Grant

Pump will need to run with the fins in the flywheel of the pump drawing air through the guard and over the pump crankcase and barrels.

Single phase no issue however getting 5 HP out of single phase might be, so if you can only get 3 HP for example reduce the revs applied to the pump down to no lower than say 550 RPM (to retain basic crank lubrication) and check the current draw on the single phase motor ensuring you don't exceed the motor rating.

You can also fine tune motor current by reducing cutout pressure if needed.

Apr 11, 2016
LeRoi
by: Doug in s.d.ca

Usually figure 3-4 cfm/HP - so probably 15 or so cfm.

Motor probably should go ccw so the sheave blows over the pump.

If you can, get a reversible one so you go either way. The 3ph motor was/is reversible.

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