fittings and gasses
Tue, 31 Aug 2021 16:45:22 GMT
i have got a couple of questions so here goes1dose any one know if you can get a male-male nipple 5/8 unf in stainless steel left hand thread. i am looking for the same thread that is on the fuel side of oxy/ace set. all the books i have say the thread is 5/8 18unf lh but i am unsure what the 18 stands for2what would be the best gas for me at home. i have a stick,mig,tig all in one but i dont really want to pay rent on 2 or 3 bottles if i can get away with it. i do stainless mig and tig as well as mig mild steel with solid wire. i have a bottle of argon at the moment but it leaves the stainless and mild steel wire through the mig a bit lumpy {not smooth and flat} it is like it is to cold but i know that is not the problem. but the argon is great for stainless tigany help would be greatlater boysWelding is not just a job its an art form
Reply:Originally Posted by Aussie Welder...any one know if you can get a male-male nipple 5/8 unf in stainless steel left hand thread. i am looking for the same thread that is on the fuel side of oxy/ace set. all the books i have say the thread is 5/8 18unf lh but i am unsure what the 18 stands for...
Reply:Use the argon bottle for your tig.You can either get a bottle of 98% argon 2% oxygen and use that for the mig for both mild and stainless, or...Get a bottle of C25, C15, or C10 (that's argon with xx% CO2, the xx being the last 2 digits) for mild steel mig and a seperate tri-mix bottle for stainless mig.There is no practical way to use one gas for all three intended applications.5/8 is the diameter, 18 is the thread pitch, unf is the thread type.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:thank you boys i may of found someone to turn up the fittings just spewin that i have to pay rent on a couple of bottlescheersWelding is not just a job its an art form
Reply:Hey mate, Im also in Aus just wondering what you needed the S/S fittings for?
Reply:I buy 100% CO2 & 100% argon & keep both bottles mounted on my cart. I made a mixing manifold & have lines from both the CO2 & Argon to the manifold then out of the manifold 1 line to the solenoid valve on the mig feeder. Then I just dial in whatever mix I want at the time. That way I only have to lease 2 bottles not 4. I do keep (own) a small 40CF Argon bottle for my TIG so I don't have to switch out bottles when I need the TIG.IF IT WORKS, DON'T FIX IT2 Lincoln CV-300 / LN-7 GMALinde-VI 253,400 & 450 w/MIG35 feedersCNC Table with Oxweld O/A & Hypertherm 1250G3Lincoln Ranger GXT 250Hobart-MicroWire 300ESAB Heliarc 161ESAB-Mobilemaster 2 CC/CV Feeders& more
Reply:millman52 I buy 100% CO2 & 100% argon & keep both bottles mounted on my cart. I made a mixing manifold & have lines from both the CO2 & Argon to the manifold then out of the manifold 1 line to the solenoid valve on the mig feeder. Then I just dial in whatever mix I want at the time. That way I only have to lease 2 bottles not 4. I do keep (own) a small 40CF Argon bottle for my TIG so I don't have to switch out bottles when I need the TIG.
Reply:You are dead on for a 75/25 mix. The manifold is nothing more than a brass T with inert gas fittings screwed in to attach 2 lines. By the time the 2 gases swirl through the solenoid, MIG gun base, gun back connecter & 15' of Mig gun it's mixed. I use no check valves. Merely regulate each gas at the flow valve. If I'm using 100% CO2 close the argon tank valve & the flow valve. I do use floating ball type flow regulators. Not the inexpensive gauge type regulators.When you get beyond a 75/25 mix & closer to 85/15 or 90/10 there is a bit more guess work on reading the flow tube on the CO2 but you can get very close on the ratios.. Attached ImagesIF IT WORKS, DON'T FIX IT2 Lincoln CV-300 / LN-7 GMALinde-VI 253,400 & 450 w/MIG35 feedersCNC Table with Oxweld O/A & Hypertherm 1250G3Lincoln Ranger GXT 250Hobart-MicroWire 300ESAB Heliarc 161ESAB-Mobilemaster 2 CC/CV Feeders& more
Reply:Wouldn't you need check valves for each tank so the tank with higher pressure doesn't try to fill the tank with lower pressure when the soleniod valve is closed and both tanks are open into the manifold?MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:No danger of the (perhaps 30#) output of a regulator getting into a 2000# tank. but I would wonder about the higher pressure gas filling the lower pressure gas's hose for a distance, I would think there might be a burst of relatively pure gas (what ever has the higher pressure) when first opening the welder's valve. check valves would minimize that. (and it might not be enough to worry about, either)-- fredLincoln 180C MIG
Reply:So the regulators go on each tank before the manifold? The multi-tank manifold systems I have used have had all the tanks connected together, without regulators, via the manifold, with one regulator after the manifold.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:The regulator on the CO2 is a Oxygen regulator converted to CO2 by changing the tank spud & adding a Linde flow gauge to the output. The regulator is set to 50# pressure.The Argon flowmeter is HTP with 50# preset to the flow tube.There wouldn't be a problem with placing check valves just before the T where the lines hook up. The regulators themselves work as check valves from the low side back to high. In this case Argon is the highest tank pressure but after the flow regulator 50# is all you have. It's the same on the CO2.Most all flow tubes are calibrated on 50# of pressure at the regulator for the reading in CFH to be accurate. I was worried about getting unevenly mixed gas when first initiating an arc. But it hasn't been a problem. I most usually hit the purge button on the feeder for 5 seconds or so when I first turn on the tanks. But I don't think that is even necessary. I also purge for a few seconds If I go back to pure CO2.This is one of those things that happened on a Saturday & I had one of those "wonder what if" ideas. When I'm in the groove working & need to convert from E71T-1 flux core .045-CO2 to ER70S-6 with 75/25. or to Al & spool gun. The roll of wire, MIG gun, & drive roll is enough to change without having to roll off & back on different tanks of gas mix + change regulators too.This may be & definitely looks midievil but it works. For me it's a big time saver. If I had the space to just simply leave a 3rd welding machine set up so I could leave E71T-1 & CO2 on 1 machine & ER70-S6 .030 with 75/25 on another. That would cover 95% of what I have to do in any given work day. But As with most small/medium shops floor space is at a premium.... All In all this is cheaper too CO2 is $20.00 Argon is 40.00 total of $60.00 for both 75/25 mix is $59.00 for a single tank. Go figure that one. Also I only have to inventory 2 gases not 3. Attached ImagesLast edited by millman52; 05-31-2009 at 08:55 PM.IF IT WORKS, DON'T FIX IT2 Lincoln CV-300 / LN-7 GMALinde-VI 253,400 & 450 w/MIG35 feedersCNC Table with Oxweld O/A & Hypertherm 1250G3Lincoln Ranger GXT 250Hobart-MicroWire 300ESAB Heliarc 161ESAB-Mobilemaster 2 CC/CV Feeders& more
Spot Welder for
fittings and gasses,Spot Welding Machine for
fittings and gasses, Laser Welder for
fittings and gasses, Laser Welding Machine for
fittings and gasses,Spot Welder manufacturer in China,
fittings and gasses Laser Welder manufacturer from China
go to see
Welding Machine for fittings and gasses
