pump impeller
pump impeller
(OP)
I have two centrifugal pumps working with different direction of rotation (one pump is left hand direction and the other is right hand direction).
is it possible to interchange the impellers of these two pumps by taking the impeller of the right hand pump and install it in the left hand pump? is the design of the impellers and the method of fixing them to the shaft the same?





RE: pump impeller
"I am sure it can be done. I've seen it on the internet." BigInch's favorite client.
http://www.youtube.com/watch?v=hpiIWMWWVco
"Being GREEN isn't easy." Kermit
http://virtualpipeline.spaces.live.com
RE: pump impeller
It seems fairly logical if one impeller rotates in a different directon to the other there must be a difference between them.
RE: pump impeller
Johnny Pellin
RE: pump impeller
"I am sure it can be done. I've seen it on the internet." BigInch's favorite client.
http://www.youtube.com/watch?v=hpiIWMWWVco
"Being GREEN isn't easy." Kermit
http://virtualpipeline.spaces.live.com
RE: pump impeller
The main question that I have is WHY? Perhaps by providing more information, the basis of your question would be more apparent, and the advice available would be more useful to you.
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: pump impeller
I did come across a problem of a non performing pump which turned out to be wrong handed impeller - didn't pump much and took quite awhile with a lot of head scratching to sort out what the problem was.
RE: pump impeller
I thought so. Thanks for confirming that they will run upside down. I suppose its true for helicopters, trains, etc.
Spacelaunch pads???
"I am sure it can be done. I've seen it on the internet." BigInch's favorite client.
http://www.youtube.com/watch?v=hpiIWMWWVco
"Being GREEN isn't easy." Kermit
http://virtualpipeline.spaces.live.com
RE: pump impeller
Yep it's marvelous how it all works upside down - but why do we still have NPSHa problems if the water is on top.
RE: pump impeller
I guess the lesson of this example could be "never assume."
Johnny Pellin
RE: pump impeller
On some of these pumps, the shafts and sleeves are different if they are threaded on, as the threads are different directions, but the impellers are the same. On others, there is no difference between the shafts and sleeves.
Take care, however, as it is really easy to get the impeller on backwards. Make sure your shop knows which way you want the rotation to be, and look carefully (and document with pictures) how the assembly goes back together.
RE: pump impeller
It sounds a bit easier than what would otherwise be proposed in Australia.
Star for BigInch, by the way.
Regards,
SNORGY.
RE: pump impeller
RE: pump impeller