Best argon flow meter3/14/2024 ![]() ![]() ![]() If you are serious your next new machine will come with something new and that will entertain. As a hobby and even a professional it wouldnt be on my short list for the day. But why simply toss stuff against the wall to see how much sticks. Some of these guys have more machines and expense than I do, got 1 machine cost more than all mine together. I would drive it a while and see what happened. You might find that this is a suitable compromise. If you change the pressure, the scale won’t read correctly. You can reduce the pressure but be aware that the bobbin flow meter is calibrated at the original pressure. Many pressure regulators associated with bobbin flow gauges are adjustable – they just don’t have the usual knob. ![]() If you want 25psi you must pay a lot more money. A lower pressure at the input of the flow meter (the pressure set by the pressure regulator) will also reduce gas surge, but cheap regulator-flow meters generally use a pressure of 50psi. It is the volume of the gas hose and the pressure of the gas that gives rise to the gas surge. It can be mitigated by using a shorter gas hose with a small ID between the regulator and the gas solenoid. Gas surge is not just a waste of gas, it can contaminate the beginning of a weld. OK, a hobbyist probably won’t do that, but it would be cheaper by far to buy a new low-cost regulator every five years. Some organisations are required to replace or rebuild regulators every five years. I know that some don’t check their regulators for 40 or 50 years or until something falls off but they should be checked (properly) every five years. I assume the wastage you refer to is gas surge.Īs a hobbyist, I am not sure that the expense of a good quality name regulator is warranted. The bobbin flow meter requires a low input pressure to reduce gas surge. I suppose with MIG, the gas flow level might vary a small amount depending on the gun, but also on operating conditions including the gas used, position and motion of the torch, and especially the ambient air movement. With a TIG torch, the screened cups that reduce turbulence will thereby keep the flow calm, will keep the gas from mixing with surrounding air, thus allowing lower flow rates. WRT the statement "Would like a proper flowmeter (flowtube and ball) with low output pressure to reduce gas waste,", if the machine has a solenoid that shuts off gas when not welding, a regulator with a calibrated (low) pressure gauge in conjunction with the proper orifice should deliver the needed gas flow just as efficiently as a flowmeter unit will, IMHO. The pressure needs to be enough to deliver that minimum flow more pressure is not necessarily better and too much is bad. Generally, that means a minimum volume of non-turbulent gas. I am unaware of the piston design must be either new or at least have been rare in the "old days" when I was more active.Īs far as the question " Can 25psi be used for MIG as well, or does MIG require higher pressure?" goes, what counts is providing a stable envelope of inert gas to shield the weld. ![]() I don't know any regulators by model number anymore, but can say the cost will depend on the construction, on whether it is single or two stage, on the level of machining of the internal parts, and on the name which somewhat equates to the implied warranty, I think. Why does everything need to be 'changed out' or maybe 'changed in' instead of just 'changed'? Sorry, I'm "Old School". "I would like to change out the included Miller/Smith regulator". 50psi, if it can't be adjusted/reduced then I will pass.Ĭan 25psi be used for MIG as well, or does MIG require higher pressure? Looks like an adjustable diaphragm regulator.ģ. Parts don't look as available as for the Victors. I would have chose this based on it being highly recommended if it wasn't for for the poor resolution on the flow tube. I do not like the scale on the flowmeter, goes up to 70cfh and less resolution in the 15-25 range where I will use it. The 2425 says back pressure compensated, what does this mean?ĭo either or both of these have balanced pressure and flow rate as tank pressure decreases?Ģ. I read it is a piston regulator, is this necessarily an issue? Will pressure fluctuate over time and is not adjustable?įor hobby use is there any reason to pay 2x for a Victor 2425? They look the same except the regulator portion (adjustable diaphragm?). I like the finer increments on the flowmeter scale. What I narrowed down to (in order of preference):ġ. Would like a proper flowmeter (flowtube and ball) with low output pressure to reduce gas waste, and high quality that will last. I would like to change out the included Miller/Smith regulator flow gauge that was included with my Multimatic 200 for a nicer unit. ![]()
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