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Need name of a LWCO fitting

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Can someone tell me the name of an iron fitting sort of shaped like a ball or two cones with a water line marked on it to mount a probe LWCO external to a boiler?

Someone posted one here on an install they made, and for the life of me I can't remember what the darn thing is called.

Thanks!
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.

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  • MikeAmann
    MikeAmann Member Posts: 997
    edited November 2021
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    I recently installed a SafGard LWCO. Those special tees can be seen in these instructions. Hope this helps. https://s3.amazonaws.com/s3.supplyhouse.com/product_files/Hydrolevel-45-170-Install-Instructions.pdf

    I am in the process of upgrading my controls, and I will no longer be needing my LWCO, since this function is built in. I will sell it cheap if you need it. And I added a combo buzzer/flashing LED to it. It's the bright blue box in this pic.

    delcrossv
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,840
    edited November 2021
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    I think the technical term is "that LWCO fitting thingie"

    here is the part number


    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
    MikeAmannPC7060delcrossv
  • delcrossv
    delcrossv Member Posts: 742
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    Bingo! Thanks!
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
    MikeAmann