Gear Pump Versus Rotary Vane Pump

Grainger:

$173.00

I am aware of that but, I can meet the same specs with a procon pump that is a rotary vane pump for $140.00 less... Will it work? I have read the differences between the pumps but, I am not sure why this would not work.. thanks again

Sorry,

I sorta suspected that you really knew they existed. I confess that my experience is with centrifugal pumps, but if it meets the performance parameters you need, I'd say try it.

You're pushing a viscous fluid through a variable resistor.

What have you got to loose?

Procon literature refers to light hydraulic oils among the fluids that can be pumped. Your oil would be heavier, but the heating might bring it into the correct range. There are lots and lots of hydraulic vane pumps, so it looks as though it ought to work. If the price is that favorable, try it. You can hardly lose. However, if this pump is the first thing in line (before the filters), its built-in screen is pretty small. You might want to put a rather generous strainer just ahead of it.

I was planning on buying the stainless steel version without the screen. The oil would be at about 130 degrees and would have already gone through six filters from 500 micron to 1 micron so this would just be a polisher to make sure that we did not miss anything.. I also was of the same opinion as you gentlemen but, I have grown to appreciate your talents and wit watching you answer stuff I have no idea about.. So thanks alot again and keep'm comi'n...

I remember you. You had the mystery motor. I went back and looked.

To answer a question that I apparently missed, I flew some a long time ago, but not recently. Can't pass the physical any more.

Tornado is the talented one.

Cheers.

The modern vane pumps can work extremely well with the high viscosity oils as well. The new vane pumps have area contact seal with the rotatable cam ring. So there is no problem with the extension of the vanes as they are attached to the cam itself. They are efficient and also cheaper than gear pumps. You may get more info about the product at www.futuraulics.com

You can easily use the little vane pump. Vane and gear pumps are both positive displacement. As long as you are working within the pressure limitations of the pumps you are AOK. Check the performance curve, operate at the speed you need for the flow you require. If you oversize your pump and run it slower you can increase pump life in dirty contaminated liquids with entrained abrasives.

Both pumps are good. Both will have limitations. Dirt and abrasives will chew the gears and bushings on a gear pump limiting it's performance. Vanes and bushings will also wear on the vane pump, but you can change the vanes.

Procon is basically designed to handle water.But it can be used for oils of light viscosity without change of speed. If the oil is dirty it is better to use a pump that will allow replacing parts that will restore the original performance.

Otherwise, the pump can be bodily replaced once it is worn.

Rotory Trochoidal pumps offer an alternative to gear and vane pumps.They are inexpensive.Tushaco Pumps,India, a Colfax Company can offer such pumps Model RT 20 at 1180 may be a good choice.

Chuck Cowlagi