I increased the argon/CO2 pressure for my MIG as discussed here last week to about 20 cfh. It won't go above 21 cfh, however, no matter how much I turn the regulator adjustment. The gas pressure in the tank is about 1200 psi. Can it be that the thin white tube that Clarke uses to feed the shielding gas to the welder is restricting the flow to 21 cfh?
I can't imagine it would be the nozzle/shroud, though this is the standard shroud I've seen with the Clarke before which curves inward and has a smaller opening (maybe 1 cm diameter?). My smaller Dayton welder uses a shroud with a larger opening (maybe 1.5 cm) and it uses a larger diameter hose to feed the gas. Could the nozzle be causing the restriction?
Any thoughts appreciated. The regulator is changing the flow rate nicely up until 21 cfh. (I have a flow meter-type regulator; the 21 cfm is being read off the argon scale, not the CO2 scale.)
I can't imagine it would be the nozzle/shroud, though this is the standard shroud I've seen with the Clarke before which curves inward and has a smaller opening (maybe 1 cm diameter?). My smaller Dayton welder uses a shroud with a larger opening (maybe 1.5 cm) and it uses a larger diameter hose to feed the gas. Could the nozzle be causing the restriction?
Any thoughts appreciated. The regulator is changing the flow rate nicely up until 21 cfh. (I have a flow meter-type regulator; the 21 cfm is being read off the argon scale, not the CO2 scale.)
