On Mon, 24 Oct 2005 21:15:24 GMT, Carla Fong
wrote:

Ignoramus5533 wrote:

I am thinking of making a homemade TIG water cooler. If I buy a
carbonator pump with motor, and I already have a nice condenser heat
exchanger (actually about 20 of little cute 12" ones), then all I need
in addition is a water reservoir (like a 5 gallon bucket), a 24 v
relay to turn on when my welding machine says so, and a little fan to
cool the heat exchanger. I have a lot of such fans. Am I missing
something?

thanks

Nobody has yet commented on the appropriateness of a carbonator pump for
this application -

I think it's a bad idea - carbonator pumps are high speed vane pumps,
(they're not positive displacement but they get unhappy (and hot enough
to boil the water in them) when throttled down...) And generally use a
1/4 or 1/3 HP motor - noisy and consume a lot of power.

For as little flow and pressure as you'll need, a pump from a garden
fountain should be fine - probably cheaper, too if you're buying one new.

Carla
Greetings Carla,
Carbonator pumps are used for tig cooler pumps in stock units. The
bronze body gear pumps that is. Look at Teel pumps and you will see
that they list a pump for both carbonator and tig cooler use. The pump
P/N is 2P3838.
ERS