I am working on a pump that has, according to the blueprint, the incorrect impeller on it. I have asked several people, including our resident rotating equipment specialist what type of impeller is on the pump currently, and nobody knows anything about it, including the vendor representative. The pump is just a centrifugal small pump, roughly 10 to 15 gpm. The design of the system and the blueprint calls for a reverse vane impeller. This is not one.
The easiest description I can give is that is looks like an expeller, if you know what that is, with a thread on the back instead of a through hole. The impeller is an open faced impeller and has straight vanes coming off the center, no bends in the vanes whatsoever. I described it to the vendor rep this way and he sent me a catalog that looked nothing like what is in there. I haven't heard from him since. I really need to find some information on it.
I have found one thing from searching using "Barski straight vane impeller" and came up with one relevant result. It did not have a lot of information in it regarding the impeller itself. What I did get from it was that a similar impeller design is designed to have a very high relative velocity, or that the water does not exit as fast as the impeller spins.
Thank you for any help that can be provided.
Straight Vane Impeller
Re: Straight Vane Impeller
