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welding 50mm pipe (steam return line)

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  • Sberry
    replied
    If the guy has to ask a question like that he shouldnt even consider doing it.If something goes wrong they WILL throw him to the wolves likity split! Your "just do it and pray for the best" is ok for little kids in a sand box,but isnt appropriate in the real world,where people do die!
    Back in the day where did you start out and how many people have died as a result of work you have done?
    Lets take a poll here, How many have had people die because of the result of the work you have done since you started working? This would involve millions of man hours on millions of projects.
    If the guy has to ask a question like that he
    At least he is asking, shows good sense of prudence and seems to have a grip on the difference between a condensate line and a pressure line.

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  • Sberry
    replied
    I am telling you what the numbers are. Its about like flying in an airlpane vs riding a Harley. Second what I am relating is real world experience in the sense that everything I wasnt qualified to work on didnt turn to a disaster.
    This doesnt sound like a home brew job, there are likely bosses, equipment and insurance and this is at least semi skilled operation, thousands of these types of jobs done every day all over the world. In this case the mechanic in question here is aware of not cutting into a live steam line such as the "professional" Portable Welder admits to. Accidents and workmanship issues go all the way across the experience level. I agree with the original poster, this is a typical job to gain experience on.

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  • 1428turbo
    replied
    Originally posted by Sberry View Post
    The words of caution are good, don't get me wrong. Man when I think back at some of the stuff I did it would be really scary, still can get in over my head in a hurry especially when doing semi routine stuff. Biggest threat in numbers is doing the job, dropping something on your foot, eye injury or falling off a ladder.
    I worked on thousands of equipment over the years, right from the start, most of it worked, even back in the day I never have a catostrophic failure and no real extreme failures despite my ignorance, seen it broke where it had to be removed from service, repaired a lot of stuff over the years and left it in far superior condition than it was. Seen a lot of work done by people with the "legal right" to be doin it that had absolutely not a clue, they should been school teachers or sumpthin else.
    Even most sloppy work doesn't fail and lots of engineered stuff does. The paper work just makes it easier to sue someone. I was on a nuke, you be surprised how much needs to be re-done because first guy that did it just didn't know how. There a lot of plumbers playing fitter.
    The threat of extreme catastrophic tends to be highly over rated.
    That is quite possibly the most assinine responce ive ever heard.first you qualify what you did out of inexperience as ok since you didnt get hurt?Well lucky you.
    Then state seen alot of people with the legal right doin it that shouldnt? You stated it correctly,"THE LEGAL RIGHT"if you dont have the licence you shouldnt be doing it.PERIOD! your not insurable.
    If the guy has to ask a question like that he shouldnt even consider doing it.If something goes wrong they WILL throw him to the wolves likity split! Your "just do it and pray for the best" is ok for little kids in a sand box,but isnt appropriate in the real world,where people do die!

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  • Portable Welder
    replied
    Sberry, I usually always agree with you, You are certainly a man of wisdom.

    I guess after hearing a friend of mine tell me the grussom details about how when he helped a guy out of the steam line pit after there was an explosion.

    One of the things he told me the guy was in shock and when he took his glove off the skin came with it.

    I have replaced sections of condensate lines that the boiler operator said was turned off and when we cut into the line there was still steam in the line.

    Though it wasnt much but it was enouph for me to thank god that I had my full face shield on when I cut it with my cut off wheel.

    There was still enouph left in it that I would have went to see the doctor.

    Leave a comment:


  • Sberry
    replied
    Lots of home built trailers as good or better than a lot of factory ones. I saw this at a farm mkt. The stick welding was sloppy but plentiful and by nature of forgiving design and overkill of materials made it a pretty service worthy unit.
    Attached Files
    Last edited by Sberry; 04-21-2009, 01:05 PM.

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  • Sberry
    replied
    Most DIY installs, say a hitch or snowplow are as good as those done by the dealer who is "qualified" to do them.

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  • Sberry
    replied
    The words of caution are good, don't get me wrong. Man when I think back at some of the stuff I did it would be really scary, still can get in over my head in a hurry especially when doing semi routine stuff. Biggest threat in numbers is doing the job, dropping something on your foot, eye injury or falling off a ladder.
    I worked on thousands of equipment over the years, right from the start, most of it worked, even back in the day I never have a catostrophic failure and no real extreme failures despite my ignorance, seen it broke where it had to be removed from service, repaired a lot of stuff over the years and left it in far superior condition than it was. Seen a lot of work done by people with the "legal right" to be doin it that had absolutely not a clue, they should been school teachers or sumpthin else.
    Even most sloppy work doesn't fail and lots of engineered stuff does. The paper work just makes it easier to sue someone. I was on a nuke, you be surprised how much needs to be re-done because first guy that did it just didn't know how. There a lot of plumbers playing fitter.
    The threat of extreme catastrophic tends to be highly over rated.

    Leave a comment:


  • Agcadmin1
    replied
    Not many of us know the exact Situation only you. The responses may come across as negative but, it's a group of people that are genuinely concerned for your safety an that of others. It can definitely be done I am sure, I don't deal with pressurized pipe, my shop repairs heavy equipment and we do a lot of new fabrication. But you say you aren't a welder that makes everyone a little nervous when you say that involving a steam line. Sorry if I came across as negative not trying to be a jackleg.

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  • Sberry
    replied
    Brendon, I am with you here. 1st. You know what it is, obviously you are informed to that point and have some experience and I recall being there, I am sure it will be overkill especially if someone is letting you tig this thing up on their dollar.

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  • Sberry
    replied
    Wouldn't scare me. Many things in the world are welded less than ideal, most of them work. You are about 10,000 times as liable or subject to accident driving to work as working on an open ended condensate line.

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  • brendan_h
    replied
    The line isn't steam asuch, it's a condensation return line with bugger all pressure.you guys are very negative considering the situation,
    If this was full steam line I wouldn't do it,considering it's only a condensation return line I might as well. Practise makes perfect

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  • Agcadmin1
    replied
    I'm with halfstep are you trying to get a negative reaction. There is always more to a steam line than meets the eye they are extremely dangerous.

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  • 1428turbo
    replied
    your in over your head,dont do it!unless you have no problem with attending the funerals of the people you kill.

    Leave a comment:


  • Portable Welder
    replied
    All I can say is that steam can kill and or severely burn you. In certain situations it can even blow up.

    Just by reading your posts I am very skeptical of your welding skills.

    I'm actually a very skilled welder owning my own business for 21 years now.

    And guess what, I dont even consider welding hi pressure steam.

    Theres more to welding steam pipe than just welding.

    I have some friends that are pipe welders that have told me horror stories about guys welding steam pipe and things going wrong and an explosion in a steam line tunnel when some opened a valve to fast and the steam going into a cold pipe.

    I dont remember all the details but I can say if you dont have an expert guiding you I'd highly recommend you leaving this job to an expert.

    You may disregaurd my recommendation and get lucky that every thing worked when you leave but I can assure you, You wont get lucky to many more times.

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  • brendan_h
    replied
    there is no certification required.

    it be like me welding up somthing for job blow. this place doesnt care as long as it works. if it leaks, go fix it

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