Which pump do I have? need to order repair parts.

[topsoil]

Hey there everybody,
Maybe someone here can help. I've been given three used Tunze pumps, and I'm trying to find out which ones they are. All of the stickers on the pumps are gone, or too scratched up to read. They guy who gave them too me didn't know, as they were given to him. Needless to say, these pumps need a little work.

All three pumps have driver 7240.25. Two of them have transformer 7200.200A (the smaller hocky puck) and one of the pumps has 7400.600A (a larger hocky puck). I really don't know for sure which transformer goes with each pump, as everything was disconnected in a box.

Only one of the pumps works right now. I hooked it up to the smaller hocky puck transformer, and it seems to work just fine.

One pump has the plastic bushing broken off the bottom of the magnet (looks like it twisted off from being jammed up inside the well).

The other pump is missing the impeller, and the entire drive assembly looks pretty beat up. The edge of the well that the drive assembly fits into is chewed up around the edges for some reason.

Anyway, it looks like a few replacement parts might get these puppies up and running again.
Any idea what pumps I'm dealing with?

Also, any thoughts on whether or not these might be convertible to a stream?

Thanks a bunch.

 

[rvitko]

Those pumps are pretty old and beyond replacing the drive units they are not cost effective to repair. Driver 7240.25 and the two pin power supplies ceased production in 2000, we still have the 7200.200 power supplies, 7400.600 power supplies and the drive units (impellers) the drive units are part 3000.500 and the impeller blades themselves are 7410.120. The pumps with 7200.200 are 7200's and the pumps with 7400.600 are 7400's. The transformers can be mixed up without concern, the size of the transformer is what determines the pump flow rate, the pumps are otherwise all the same.

 

[topsoil]

Thanks for the quick response Roger!