Before I retired, I work at a nuclear power plant. We had a project where we installed a whole bunch of these for vent lines on various size lines. They were challenging to say the least especially when they were out in the field and not in the shop. Some required two welders, one on each side because it was impossible for one person to get around the weld-o-let. We did not predrill the holes because they were hot tapped later after the valve was installed. I wish I would have seen this back then it surely would have helped. Nice tutorial.
It means you would do all the work with fluid still in the line. After you welded on the nipple you would install a ball valve with a hot tap rig which had a long drill bit with packing on the end to seal it. There was a vent line on it to catch the fluid and you would drill the hole without draining the pipe. It was challenging for us because we had to collect the chips and weigh them. They keep a little pressure (no flow) in the line to help force the chips out the vent line and into a bucket. Hope this helps. @@natenate2280
That final pass really looked good. When I start out I like a smaller cup with 1/8th Gap. You still get the penetration and it saves time. You can turn up the amps just a little bit with a smaller cup and go like hell. You seem to have more patience than I do. I slow it down at the end . Great Video, THANKS
Do you think laser welding will impact the amount of TIG procedures. I used to be a pipe welder out of Local 46 in Toronto whilst I was in University. I was welding in the family business since I was 12. Now I’m a IT Geek but still miss beautiful welding like this. The best welders I worked with were all from Eastern Europe. Made my welds look like a dogs breakfast but still passed X Ray.
Great point, but, laser welding comes with some limitations that prevent it from entirely replacing TIG welding. Its high equipment costs, limited effectiveness on thicker materials, and the need for skilled operators, create challenges. So in my opinion, that's not going to happen, and definitely not in piping industry.
Great example! Just got into the booth myself. Struggling with SS 12” Pipe with bad high-low fit up. 1/8 gap to flush. Trying to use keyhole technique but lack penetration/fusion on one Side. Got any tips? Thanks again for ur vids
Grab a grinder and open that gap, especially that part where you have lack of fusion or give your pipefitter to do that. Don’t forget, you don’t have to weld it if you don’t like fit up, soon as you put the tacks you own it!
Sim mestre uma bela apresentação ótima para quando soldagem em unhas e botas porque também fica difícil para executar uma boa raíz quando temos que fazer o trabalho no campo obrigado pela orientação 🙏
Another great video from the master. What is the small groove cut into your gas cup for? Thanks for the videos please keep them coming. - The LowlyGrasshopper.
45lpm mine has only 25lpm stripes, i had to bump it up till the ball hit the spring when welding outside with strong wind close to river, good times, retired now🤨
Great work, but I must ask, why do you not get yourself a helmet with a proper visor? Like speedglas g5-02 or if you prefer perma shade a helmet with a way bigger visor?
@@X3MTIG I agree that its the welder not the mask but why not give yourself every bit of advantage you can have? When I began welding I bought the best welding mask there is right away. Wouldnt swap for anything else.
@@vincenzodellavalle9094 I'm sorry what is a weight hood? I haven't met with this phrase yet. Do you mean a leather welding mask? It's also called the devil over here. And it's by no means the best One, it's Perma shade. It's just a different type of equipment you use in tight fits.
Nice video and technique. What baffles me though that even now in 21st century in year 2023 people use obsolete radioactive tungstens.... I understand that some companies won't provide better tungstens but damn, they should really wake up.
Hey bud, thanks for your comment. I agree with you, but it’s not only about companies being cheap or neglectful of their employees. The entire industry is like that. The main thing is, whoever is using thoriated tungsten, should be aware of radioactive dust created during the grinding or sharpening of the tungsten. That’s why respiratory protection should be used, and taken that seriously! It’s all about educating people, and I think many companies are failing in that segment.
@@X3MTIG Exactly, it's a huge issue. Also. Radioactive dust is being released while sharpening thoriated tungsten and with this I'm not sure what kind of particles does thorium release whether it's alpha, beta or gamma, but with the last two they penetrate through much more than just a paper filter. It would also make sense to discard the filters/the mask every time you sharpen your tungstens which is not very sustainable. Also, there are other tungstens that are far better performing than thoriated so really no reason why keep this obsolete piece of technology. Do some research on it and present it to the management team, alternatively contact OSHA equivalent in your country.
Pardon my ignorance but why such a huge gap? What’s wrong with just setting the bung down onto the pipe and welding it that way? Will it not get penetration or something?
Сильно перегреваете метал, в сформированном вами соединении будет повышенная межкристаллитная коррозия. На таком токе нужно работать чуть быстрей. Нужно больше позволять остыть изделию между каждым проходом.
It would be levelled parallel to the pipe lengthwise. In the other axis, it would be levelled to a flange or other Olet or pipe running In that direction.
It can be confusing. You’d also want to level the olet to the hole. Sometimes the olet will be used to insert a probe into the pipe and you want the probe to be straight down into it.
