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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Welding - gas mixer?
I have a tank of Argon - 100%, and a tank of CO2 - 100%.
Ernie's answer to Don Foreman's recent thread suggested 25 AR and 75 CO2. So is there some kind of mixing valve where I could hook up the two tanks and get blended gas out? This would only be for occasional use, I'd just get a blended tank for a big job. Karl |
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Karl Townsend wrote:
I have a tank of Argon - 100%, and a tank of CO2 - 100%. Ernie's answer to Don Foreman's recent thread suggested 25 AR and 75 CO2. So is there some kind of mixing valve where I could hook up the two tanks and get blended gas out? This would only be for occasional use, I'd just get a blended tank for a big job. Karl Do you have regulators and flow meters for each tank? If so just connect the lines out of the flow meters to a "y" and then on to your solenoid valve. Then adjust the flow meters for the desired ratio. |
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On Sat, 08 Jan 2005 08:24:30 -0500, tomcas
wrote: Karl Townsend wrote: I have a tank of Argon - 100%, and a tank of CO2 - 100%. Ernie's answer to Don Foreman's recent thread suggested 25 AR and 75 CO2. So is there some kind of mixing valve where I could hook up the two tanks and get blended gas out? This would only be for occasional use, I'd just get a blended tank for a big job. Karl Do you have regulators and flow meters for each tank? If so just connect the lines out of the flow meters to a "y" and then on to your solenoid valve. Then adjust the flow meters for the desired ratio. OK while gasses are flowing, but mightn't you get a slug of mystery gas in the lines when the valve was closed? Perhaps there should be a solenoid valve for each gas before the lines are joined? |
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#4
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Don Foreman wrote:
On Sat, 08 Jan 2005 08:24:30 -0500, tomcas wrote: Karl Townsend wrote: I have a tank of Argon - 100%, and a tank of CO2 - 100%. Ernie's answer to Don Foreman's recent thread suggested 25 AR and 75 CO2. So is there some kind of mixing valve where I could hook up the two tanks and get blended gas out? This would only be for occasional use, I'd just get a blended tank for a big job. Karl Do you have regulators and flow meters for each tank? If so just connect the lines out of the flow meters to a "y" and then on to your solenoid valve. Then adjust the flow meters for the desired ratio. OK while gasses are flowing, but mightn't you get a slug of mystery gas in the lines when the valve was closed? Perhaps there should be a solenoid valve for each gas before the lines are joined? Prepurge. |
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