How to tell what impeller (Berkeley)

« **on:** July 12, 2022, 08:05:46 AM »

Can you tell what impeller you have without pulling the pump apart? From the tag I guess it?s an A? (See pic). I pulled the (inspection?) cover off and it looks like it?s in good shape, but is there a letter cast or stamped into it somewhere?

« **Reply #1 on:** July 12, 2022, 10:46:12 AM »

There SHOULD be a letter stamped onto the center hub of the trailing side.
The letter could be wrong after 45+ years, if it has previously been machined before, and not restamped.... (A to an AB or B, etc.)

Only real way to know is pulling the bowl.
And then measure it.
JBP and CP Performance have charts on sizes and HP absorbed.

A refreshed pump will absorb more HP, at a lower rpm.

A loose pump will run at a higher rpm.

Dan'l

bluthndr

How to tell what impeller (Berkeley)

mash on it

Re: How to tell what impeller (Berkeley)