Diaphram RPM

[scudderb]

Duda-

I'm considering adding a centrifuge to my setup. It needs 1725 RPM to work efficiently. What RPM is your diaphram pump? Thanks.

[Duda]

I believe the The RPM's of the diaphragm pump would be irrelevent to the RPM of your centrifuge (and I don't know what RPM the pump runs at, just approx flow rates) - From what I understand, the cetrifuge accepts the flow of fluid from the pump, and would simply require a steady stream of flow to work effectively. Do you know flow rate requirements of the centrifuge?

[scudderb]

Flow rate is about 1.5 gpm.

[Duda]

The diaphragm pump should be able to handle that. We see about 2-3 gpm with the diaphragm pump pumping biodiesel, of course depending on suction height and head and hose diameter. If you adapt it to push/suck through a 3/4" hose and place the pump below the fluid level of the biodiesel that you are pumping from, it will definitely achieve the speed that you need.

[GreaseGuy]

Based on the above info, a diaphragm pump will work to replace my broken A.O. Smith AC pump/motor currently connected to my centrifuge? That would be great news to me! I need a replacement pump for a 1/2 horsepower, gear pump.

[Duda]

The diaphragm pump does work very well in applications which require some pressure and continuous pumping. The only issue any users have had is getting a high enough flow rate to their needs, since the pump will only handle 2-3 gpm depending on how viscous the oil is and head, suction height etc...