Water cooler requirements

[dirtyfarmer]

I'd like to see some actual pressure and flow measurements anyone has taken for coolant being pumped through TIG torch and cables?

I wonder how much more pressure it would take to pump 1 quart per minute of coolant through 25' cables, compared to 12' cables.

1 quart / minute is not a very high flow rate. I wash my hands with several times that much flow.

Jakeru, Since it's a dreary,snowy day this afternoon in Michigan, I decided to go and try to answer part of your question. Ambient temp 34deg using "Industrial Supreme, all weather protection,low conductivity Antifreeze/Coolant, recommended for Miller,WeldCraft,Bernard and others" as fluid.($20.50/gal @LWS)
Short answer: Using my adjustable power supply to control the in-tank pump's pressure, and laying the cable/hoses on the floor but the torch itself up on the table surface to simulate actual head pressure, 14 to 15psi will deliver 1qt/min, measured by dumping the return hose, after the 5/16" tubed trans cooler, into my "calibrated" 2qt pickle jar. When I ran the pump using the modified PC power supply, the flow was 1.5qt/min @20-40psi (again the slow, pressure cycling would occur). All this with 12' leads. It's all I got.

[jakeru]

Great data point, Tony - thanks! (Should come in handy if I ever should decide to go watercooled.)

[angular]

My homebrew TIG cooler moves a lot of water at 40 PSI, I'd guess 2 quarts a minute but I can't remember exactly. I would think that the type and diameter of cables (and particular model of torch) would make more differance than the length of the cables. I have only tested my DIY water cooler with the stock torch that came with the 250EX. I should be getting a CK-200 watercooled torch with 25' superflex cables on Tuesday, so I could perform a delivery rate test using that setup if you'd like.

Bradley

[lowell]

Do you have any more info on you homebrew tig cooler
thanks

[Rodsmachineshop]

the water line pressure don't mean a thing its the volume of water being pumped threw the torch more water cooler torch . my pressure is like only 8 to 10 psi but water volume from my water line is a little under 2 quarts per min way over min specs . pic came out to small it say's min 1 quart per min volume for water flow. as for coolant lol i use flywheel grinding coolant and 5 gallons of distilled water . the coolant i 30 to 1 ratio mix that like 22 oz of the flywheel grinding lube it has a alga and chemicals to keep water from going rancid and pump lube . its over 2 years old and still looks like the day i put the water and coolant additive in .