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Thread: TXV Replacement

  1. #1
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    TXV Replacement

    I was just wondering how most of you replace TXV's. If it has a removable power assembly, do you remove it before brazing in the body or do you just wrap up the whole valve with wet rags?

  2. #2
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    Feb 2006
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    if its a removable power head i just replace the head . other than that i just wrap it

  3. #3
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    I just wrap it.

  4. #4
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    Wrap it and aim the flame away from the valve when brazing.
    If God didn't want us to eat animals... He wouldn't have made them out of MEAT.

  5. #5
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    ^^^
    I do that


    Sent from my iPhone using Tapatalk

  6. #6
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    Dissemble that puppy , Wet-Rag the Body , Braze & Reassemble.
    The primary function of the design engineer is to make things difficult for the fabricator and impossible for the serviceman.

  7. #7
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    Wwwaaaaaaaaaaht,
    You guy's don't use that 'spray on' Heat Block gel?

    Hard part with the rag is it's too wet and 'steams' your torch out 'just' before you finish It up.
    Sorry,I just have very little Faith in some goo being able to prevent Brazing Temp's from effecting whatever I'm brazing.
    Main thing is Quick,
    IN & OUT and Flame Away from the 'part.
    No matter how long you have been doing this,
    Go back and reread the Basic's.You WILL Learn something.
    Why is it called,an Act of GOD when IT has Nothing to do with Him?
    Will of the Devil would be more appropriate IMO.Just Saying.
    PSALMS, 18 & 25.
    I am Tired of High Efficiency Propaganda.

  8. #8
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    you always use some technique to protect it, I used rags and the paste with equal results I got some new putty from the supply shop that I been using that seems to block heat even better now..

    was funny they caught me walking in the door and asked me to look at this putty so they put a little ball on some 3/8 copper pipe about 6 to 8 inches long and asked me to hold it.. I of course are skeptical but everyone is watching so I do it .... then they heat the other end to glowing red hot but I don't feel any heat on my end..

    couple weeks later I go get a little tub of it and been using it on variety of things.. I like it.

    rag is cheaper and just keep dousing it water if need be.
    "I never lie because I don't fear anyone. You only lie when you're afraid." - John Gotti

    “Always shoot first . . . that way they know you’re armed!” - Orrin Porter Rockwell

    "Individuals and entities performing contracting work illegally and without a license place the public at risk and effectively steal millions from Arizona's hardworking, law-abiding contractors and their employees," - Jeff Fleetham, director of the Arizona Registrar of Contractors.

  9. #9
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    I just wrap it.

  10. #10
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    Quote Originally Posted by HellGato View Post
    you always use some technique to protect it, I used rags and the paste with equal results I got some new putty from the supply shop that I been using that seems to block heat even better now..

    was funny they caught me walking in the door and asked me to look at this putty so they put a little ball on some 3/8 copper pipe about 6 to 8 inches long and asked me to hold it.. I of course are skeptical but everyone is watching so I do it .... then they heat the other end to glowing red hot but I don't feel any heat on my end..

    couple weeks later I go get a little tub of it and been using it on variety of things.. I like it.

    rag is cheaper and just keep dousing it water if need be.
    Got a make on that putty. I think I want some.


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  12. #11
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    I just wrap it. Oxy-acetylene makes quick work of it.

    The putty works well, but I only use it on items above 1 3/8 where you really have to pour the heat on as it can be a bit messy.

    Viper makes some. Another one is called Hot Dam.

    Sent from my SM-N910W8 using Tapatalk

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  14. #12
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    Jul 2014
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    Quote Originally Posted by heatingman View Post
    Got a make on that putty. I think I want some.


    Sent from my iPhone using Tapatalk
    HOT DAM Heat PUTTY

    Completely stops heat transfer down ferrous or non-ferrous pipe
    Easily molds like clay to any shape you need
    Can be used over and over
    Removes quickly and cleanly after each application
    No drip, mess or residue
    Reusable
    Simply stores in a 3/4 lb container



    There is another brand

    GOSS Heat Barrier PUTTY too..

    got it at Fergusons
    "I never lie because I don't fear anyone. You only lie when you're afraid." - John Gotti

    “Always shoot first . . . that way they know you’re armed!” - Orrin Porter Rockwell

    "Individuals and entities performing contracting work illegally and without a license place the public at risk and effectively steal millions from Arizona's hardworking, law-abiding contractors and their employees," - Jeff Fleetham, director of the Arizona Registrar of Contractors.

  15. #13
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    Oct 2013
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    Medford, New Jersey, United States
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    I've always used the wet rag approach but that putty looks like it may be on my short list of stuff to try/buy.

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