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I need temp and pressure gauge

scatgo
scatgo Member Posts: 50
in Gas Heating

Is there well used for a temp and pressure gauge? I cant see a well being use because how would the gauge read water pressure? The reason I ask is because the gauge I ordered states for a 1 and 9/16 well.

TDB25-75-BK - Bluefin TDB25-75-BK - 2.5" Tridicator, 1-9/16" Well, Back Mount Temperature & Pressure Gauge (0-75 PSI, 30°-250°F)

Comments

  • GroundUp
    GroundUp Member Posts: 2,429

    The "well" is supposed to say "probe". This just gets screwed into a tee and that's the end of it. With that said, you might want to upgrade to a Resideo tridicator like the TD-090. I tried these Bluefin ones out years ago and had a 100% failure rate within a year

  • hot_rod
    hot_rod Member Posts: 25,954

    A pressure gauge cannot go into a dry well, the sensing probe needs to be into the water to read pressure.

    However there are some wells where the end pushes open as you screw the gauge into it. But the well and gauge need to be a matched set.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • leonz
    leonz Member Posts: 1,651

    I have a MARSH Instruments Tridicator and it has performed flawlessly with my coal stoker boiler.

    If you visit the Marsh Instruments home page you will be able to order the correct tridicator for your boilers tapping size. Please be aware that the tridicator MUST be installed with no teflon tape or thread paste as it will prevent the gauge from reading the system pressure correctly.

    scatgo
  • hot_rod
    hot_rod Member Posts: 25,954

    To me a tridicator is sort of a compromise gauge. I've never met a top quality brand or version.

    I prefer a good quality pressure gauge and a good quality thermometer as separates.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    scatgo
  • scatgo
    scatgo Member Posts: 50

    Thanks for the help.

  • leonz
    leonz Member Posts: 1,651

    Marsh Instruments makes high quality tridicators and they warrantee them from defects for 2 years and offer a repair and recalibration service.

    scatgo

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