Appreciate the comment and you viewing the video. This video is from 2009, but it is difficult to find such reports as they usually never make the news. If you google the incident, you can actually find information on how it turned out.

Condolences to the family 🙏🏽♥️😔 I am a pipefitter as well and you need to be careful when you're doing your job need to be responsible check it twice make sure and always get it inspected by the city or a third party.

Heat rises in fluids. The saying, 'heat rises' has nothing to do with brazing/soldering. Heat travels through solids by conduction. We start at the bottom of fitings as a practice to form a dam to stop the filler material from flowing out.

would love to see an updated video as well as showing the penetration of the cup after its been cut open.

Nice job, brings back some money making memories in a operational emergency room on the 2" oxygen line. None of the older hands wanted to touch it. So I took care of it. Confined spaces suck up and around tight ductwork with a screaming rose bud. But I found that I had to feed the braze quicker to quench the joint as it was hard to control the heat in sich 9:45 tight quarters. But you nailed the lesson plan as far as I am concerned.

Thank you

That horizontal joint isn't 100% full. ..and where's the cap? What I've noticed when taking brazing test is that when people fail, it's usually the 11 - 1 o'clock position of the horizontal joint. Not the vertical up as one might think. That's because when you load up the first cup, then turn it upside down to braze the second cup, filler rod from the first cup will wick down across the coupling and fill it from the top. You'll notice that any cap you put on the first cup isn't as full as it was when you finished the first cup. The horizontal joint is hardest and many people get 100% penetration on one cup but will have holidays between 11 and 1 o'clock on the other cup. That's because when you fill the first cup, it unifies the tube and coupling and it acts as a heat sink, stealing the heat needed to completely fill the second cup. To solve that problem, crack open your acetylene a little more then adjust the oxygen accordingly. When I test, I go beyond cherry to bright orange and keep it moving there will be a quick sizzling before you burn through. If it sizzles, back off immediately and you might be ok. When pipe is orange hot you can see the effect of the rod pentrating the joint. Don't be fooled to believe that's the shadow of the melted rod. It doesn't represent actual penetration. It's the pipe being cooled off by the cooler molten filler rod. The shadow represents how much of the pipe has been slightly cooled off. Once the pipe has been totally purged, back the flow down to 5 or less. As long as there's a positive flow of N2, there's no reason for air to enter the system. Sometimes the jig used to hold everything together is too good and when the copper is heated, it expands too good of a seal and blocks N2 from escaping where it maybe was escaping from when the assembly was cold. It might try escaping through the molten filler leaving bubbles. Less purge helps control that issue. Before you bark off your torch, lick the back of your hand and pass it over the purge port to see if you feel the flow. Adjust the purge so you just feel it on the licked part of the back of your hand. Remember if there's not enough time to do it right, is there enough time to do it over? ...UA LOCAL 342 does it right the first time

coupr welders How much salary job

Keep handy Andy out of the fucking header room and hire a professional.

I have experience 6 medical gas technician gulf how can apply jove peal tel me

I've been searching everywhere for information. If I take an approved 32 hour course online, how and where do I go for the practical examination? I understand that the written exam can be taken at any PSI center. Please advise. Thank you

Nice knowledge ji

I just got my certification today and soldering. Proud ua !

That is great to hear. Please remember that a license is not the certification. The certification is the ASSE 6010 Medical Gas and Vacuum System Installer Certification, which may be utilized in most jurisdictions as a means of obtaining the license to install medical gas piping systems. Please visit www.nationalitc.com/ for additional information on related piping industry brazing. Thank you for viewing and we appreciate your comments.

صديقي عندو الرخصه وانا رايح اخدها قريبا

And the Gardena mock facility local 250 and local 78 built

Looks like Compton training center where my dad taught medgas for 25 years

1. You don't need the welding glasses 2. Way too much heat 3. The result is carbon everywhere and a uneven result Not good.

do you have a video of examining a brazed joint for certification?

he should be wearing jersey gloves to prevent oils from the hand contaminating the joint.

I enjoyed the video. A couple of things to say:{1} there was no mention of cleaning the fittings or pipe prior to braze,{2} there was no mention of the amount of silver content in the brazing rods; copper pipe brazed to copper fittings need a different brazing rod than when brazing copper pipe to brass. Also, no flux is used when brazing copper to copper. However a flux is used when brazing copper to brass.{3} after the copper coupon was brazed and a thing strip was cut out, why did the instructor not show a close-up of that brazed joint?

how old is this video