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B&G air charger tank fitting

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jpm659er
jpm659er Member Posts: 24

I haven't seen this model before. There is a nipple and cap attached to the bottom. How do you charge the tank?

IMG_3981.png IMG_3982.png

Comments

  • leonz
    leonz Member Posts: 1,709

    The bottom cap is removed to drain the tank if needed and the valve is closed to allow water to fill the tank and create the point of no pressure change.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,172

    The tank will have either water or air in it. When you drain the water, the tank is then full of air. You then let boiler water into the tank to pressurize it.

  • HVACNUT
    HVACNUT Member Posts: 7,157

    The pressure reducing valve charges the tank.

  • jpm659er
    jpm659er Member Posts: 24
    edited November 20

    that is how I would Service any traditional overhead compression tank when it gets waterlogged: drain it and close it back up and allow it to fill. I was hoping this "air charger" fitting would make the job quicker and easier somehow. Is it just a port to let air in while draining the water in the tank into the system?

  • hot_rod
    hot_rod Member Posts: 26,254
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    jpm659er