March Pump, Impeller up grade Options

[Swagman]

Has any brewer done this up grade to there March 809 pump? If so what kind of improvement was there. To me it seems a good way of moving more material.

Borrowed this picture from another brewer and it does a great job of showing the difference.

Part number for impeller magnet assembly is 0809-0107-0200


(IMG:http://i50.photobucket.com/albums/f333/surfsupks/MarchpumpImpeller.jpg)


They also recommend changing the thrust washer part number for it is 0809-0043-1000

Cost of the impeller runs between 24.00 to 27.00 plus shipping and the washer is .069

I don't have a problem with priming with my set up but some that I read says it does improve priming.



God Bless
Dominus Vobiscum
Swagman

This post has been edited by Swagman: Mar 19 2011, 08:01 AM

[BierNut]

Swagman and RonRock,
i'm "BierNut" on this forum vs "BrewBeemer" on HBT.
For others also about the March 809 pump, my case a Chugger pump in stainless.
I did a couple tests with the small 809 inpeller same dimentions used in Chugger pumps then switched to
the larger March 815 impeller same as the Swagman pictures posted above.
Tested with a Blue-White Industries F-1000-RT Rate-Totalizer meter, range 2-20 gpm with 1/2" ID body and impeller.
Installed 1/2" NPT to 1/2" slip adapter with 1" OD on the slip fitting allowing for 1" ID vinyl tubing no pump inlet or outlet
flow restrictions.
Unloaded flowing the smaller (12'+ max head) impeller flowed 5.65 gpm.
With the larger 815 impeller (18'+ mx head) flowed 6.49 gpm.
A 14.86% increase, not going to put out forest fires with but an increase none the less.

This stainless Chugger pump with flashing restricting the inlet port flow.
Detailing with the Dremel should increase flow by a small amount vs this high production corner cutting detailing cleanup.
With a Blue-White Industries F-1000-RT flow meter of 1/2" ID with metering impeller, my findings;
With max head from 12+ to 18+ ft, that alone is a large improvement considering the flow resistance pushing through
a long copper or stainless chiller coil.
Dealing with low hp and flow pumps, anything that improves them is a great help.
Hey Swag and Ron, keep in touch you two.

Carl.....~~=o&o>.....