Fosgene Gas ... It's Good, It's Bad & It's UGLY......
Results 1 to 13 of 13
  1. #1
    I am just gathering all this info about rack systems. I hear y'all tellin about welding on lines and havin the gas bleedin thru the ball valves.

    Well hey, cant you simply sweat a pair of schraders, one upstream of the repair area and one downstream of the area to be welded.

    Have one used to hook up a vacuum pump and the other used to introduce some nitrogen.

    I know this would take a balancing act to get it correct , mixture wise ... but it would be far better than infecting yourself with fosgene gas all the time.


    What are your tips/ techniques/ strategies for accomplishing a welded repair .... as painless as possible?




  2. #2
    Join Date
    Jan 2004
    Posts
    526
    this may sound silly but what are some of the effects of

    fosgene gas short term like just a couple exposures and

    some repeated exposures, long term effects and such

  3. #3
    Join Date
    Feb 2003
    Posts
    1,166
    Had a few similar bad leaks to repair, just hook a vacum pump back at the schraeders at rack if so equipped that worked well for me. If you can get at the schraeders on other cases on the system pull them but leave the one in on the case your working on might help too.
    Watts New, Ohm My, I been Electrically Commutated. Are U2.

  4. #4
    Join Date
    Feb 2003
    Posts
    1,166
    Goto http://www.refrigerants.com/msds.htm check on the dangers of "phosgene and other ugly stuff created by refrigerants
    Watts New, Ohm My, I been Electrically Commutated. Are U2.

  5. #5
    Join Date
    Apr 2003
    Location
    the Great Pacific Northwest
    Posts
    607
    I use a 3M half mask with some acid gas cartridges recommended by my safety supply house, they work like a champ. One repair that was particularly bad I could feel my skin start to sting but couldn’t smell or feel a thing in my respiratory system.

  6. #6
    Join Date
    Jan 2001
    Location
    So.Cal
    Posts
    441
    Short term effects- gasp, gag, cough and get the hell out into some fresh air because it will kill you. Long term effects- I hope not because I have had too many lung fulls of that stuff.

  7. #7
    Join Date
    Jun 2002
    Location
    Delaware
    Posts
    350

    Talking

    Bob - only the 'real' refrigerants make phosgene when overheated. Maybe you should give the new ones a chance after all! :-)

  8. #8
    Ain't nothing like the smell of fosgene gas in the morning to clean out the sinuses, nose hairs, brain cells and lung tissue!!

    Fosgene gas...What a Mess!!



  9. #9
    I heard over the years that Hitler used Phosgene in the gas chambers. Worst day I ever had with it was trying to fix a leak on a 80 ton chiller in a closed mechanical room, it's a miracle I didn't keel over.
    Hey cockroach, don't bug me! ©

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  10. #10
    Also used to get a kick out of it when I blew out condensers in commercial kitchens with r-12, the old days, and the ovens were on, the hood drew the gas up over the flames and all the cooks would freak out.
    They used to think that is what freeeeezone smelled like.
    Hey cockroach, don't bug me! ©

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  11. #11
    Join Date
    Jan 2004
    Location
    Earth
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    4,879
    Phosgene Gas must be addictive. Why else would we all still be doing this
    A Diamond is just a piece of coal, that made good under pressure!

  12. #12
    Join Date
    Oct 2003
    Location
    new orleans,la
    Posts
    147

    Confused

    Originally posted by frozensolid
    Phosgene Gas must be addictive. Why else would we all still be doing this
    We !re looked and smelled like a bunch of alien
    koolrite837

  13. #13
    ROBY, when the blends wuit separating and the prices drop to what a freon oughta cost ... and when some contractors get their head out of their ....you know where .. and return to charging for refrigerant what we all used to charge a customer for refrigerant ... and not this $25 a pound for R22 thing ....

    And when we dont have to reclaim any longer .... and when the makers of those cheesey steel drums take those stupid one way check valves OUT .....

    And when the various choises of refrigerants out there have some form of cross compatibility engineered into them so we dont have to rip the customer a new behind every time we come across some idiots work where he didnt mark his gas type .... and we have to bite the bullet and pull the gas, dispose of the gas, replace the drier and evacuate the system, recharge with whatever it is we are using at the moment on our trucks ... for that temp application ...


    Then I'll cut them new gases some slack ... until then .. I will only use them-properly and endure them-bitterly.

    What the chemical companies have done to us service men is akin to what the pharmecuticals have done to the doctors in the medical industry!


    And we dont need to follow their example any longer.

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