Noisy Circulator

Mr Takagi

I recently replaced my leaking B&G 100 with a new Taco 007. According to the pump curves, the 007 should move a little less water than the 100 did in my system. (Big pipes and lots of water, so very little head) What I have noticed is that with the 007 I can hear the water running through the radiators all the time. Before, I would just hear the hum of the B&G, not so much the water flow. I was wondering if this is typical of the 007 since it does run at double the rpm as the B&G. Or maybe the old B&G just wasn't pumping like it should have been?

Mike

Maine Ken

With larger piping I would recomend staying with the 100 rather than the 007.

I knew i saw this someplace>>>

from "Heating Q & A"

"Q: Can't I use a small, water-lubricated circulator instead?
A: These are fine circulators for most modern, forced-circulation systems, but not the best choice here. You don't need to generate much head pressure on these conversion jobs because the pipes are enormous and the resistance to flow is almost nonexistent. Using a small, high-speed, wet-rotor circulator is a poor choice on a gravity conversion because it will do the exact opposite of what you're trying to accomplish."

This for converting from gravity to forced circulation but it holds true if you have large piping. Stick with the 100.