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Replacing gas valve - stuck gas pipes

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Memba
Memba Member Posts: 3
Hello!

I can't seem to break the union of these pipes. These are the tools I'm using. Can someone  explain how I should try to go about it? 

I've hit the coupler with a hammer and it has made no difference. I could cut the pipe out completely and put new pipe in starting at the flexible yellow line above if that would be the best solution.

The sealant is what I will be using to join the pipes back together.


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  • mattmia2
    mattmia2 Member Posts: 9,747
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    You have to start at the union outside the cabinet(or the transition fitting for the csst) and take it apart from there. You will need a tech with combustion, draft, and gas pressure analysis equipment to set up the new valve. You probably will need a pipe wrench to grip and turn the black iron while you counter hold the valve or fitting you aren't trying to turn with the adjustable wrench or the channelocks or a second pipe wrench.
  • pecmsg
    pecmsg Member Posts: 4,883
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    That’s a coupling, not a Union. 
    JakeCK
  • JUGHNE
    JUGHNE Member Posts: 11,075
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    What is wrong with the gas valve?
    Won't open?
  • Memba
    Memba Member Posts: 3
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    mattmia2 said:
    You have to start at the union outside the cabinet(or the transition fitting for the csst) and take it apart from there. You will need a tech with combustion, draft, and gas pressure analysis equipment to set up the new valve. You probably will need a pipe wrench to grip and turn the black iron while you counter hold the valve or fitting you aren't trying to turn with the adjustable wrench or the channelocks or a second pipe wrench.
    Awesome, that makes sense. Is there a specific piece of hardware you have used and recommend for the gas pressure analysis?  I had someone come and confirm it was the valve, he said I wouldn't need to test the pressure. The new one would install and work as it is.
  • Memba
    Memba Member Posts: 3
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    JUGHNE said:
    What is wrong with the gas valve? Won't open?
    Yea. Ignitor comes on, never lights. Tech confirmed it was the valve. 
  • retiredguy
    retiredguy Member Posts: 915
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    First off, you need to buy the right tools to do that job. If you had an HVAC company confirm that the gas valve is the problem you should have had them complete the needed repairs. By the time you get that valve replaced you will have spent about the same amount of money as the tech would charge and have the job done correctly. Novice home owners should not be doing these types of repairs. This is not a DIY job. This repair needs to done safely and correctly or bad things can happen. My 2 cents.
  • Derheatmeister
    Derheatmeister Member Posts: 1,549
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    As Mattmia2 said " You will need a tech with combustion, draft, and gas pressure analysis equipment to set up the new valve". It is better to leave this up to a Professional that has the training and equipment !!!

    If you want to do this job your self i recommend the following:

    1. NCI has a program which will take a couple full days followed by a exam at which point you would be a Certified Carbon Monoxide specialist.. $$$$ and a couple days

    2. You will need the proper Tools to be able to adjust the gasvalve such as a Combustion analyzer, Draft Meter,Manometers,Thermometers, Leak detectors,PPE such as a Carbon monoxide detector .. $$$$.

    3. You will need some Real Pipe wrenches,$$$.
    BTW...Do not install a union or the "Yellow Flex line" into the Cabinet..

    Or...You could just call a competent Service company that can help you with this issue.
    NCI has a list of certified Technicians that can help.

    Again..

    Prior to and around the Gas Valve you are dealing with Gas which is highly explosive..

    After the Gas Valve you are dealing Carbon Monoxide which can kill anyone residing in the home..