Water cooler requirements

[acourtjester]

Lowell
go back a few months on here and there is info about tig coolers. Also google "diy tig coolers"
Here is a good buy on Ebay for a procon pump (what most use)
http://www.ebay.com/itm/PROCON-PUMP-...item4603e22cf1
There are others too. These pumps have a pressure adjustment for setting to the right pressure when its all hooked up.
Mine ran about 25psi with out the torch and 50 with the torch this is due to the restrictions in the torch. If you hit it with too much you may blow the torch so start low and hook up the torch then build the pressure up. Make sure you have enough water in the reservoir (2 to 2-1/2 Gal.).

Have fun
Tom

[Rambozo]

A long time ago, I worked at a shop that switched from total loss cooling with city water to a Miller recirculating cooler. My boss came from the if a little is good, a lot is better school and decided to just use straight coolant concentrate without dilution. It was too thick to get much flow through the system and he promptly melted the power cable. So he turned up the pressure relief valve to the max. That worked for a short time until it blew off a hose at the torch, melted another power cable and made a huge mess.

You do need enough pressure to keep the flow going if the hose to the torch is hanging over something that can cause a mild kink in the line. There are also special fuse links you can install that will protect your cable if the water flow stops for any reason.