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Gravity hot water radiator connection

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Bubbleheadtoo
Bubbleheadtoo Member Posts: 2
in THE MAIN WALL
IMG_6397.jpeg

What is this? This is on all the second floor radiators. It was originally a coal fired gravity hot water system.

Comments

  • leonz
    leonz Member Posts: 1,932

    If I remember correctly this Tee allows the hot water to pass over the cold water as it drops and the hot water to rise into the radiator. Simple and elegant using one tapping and much less pipe.

    PC7060
  • JUGHNE
    JUGHNE Member Posts: 11,635

    I would guess that the supply on the right had an extension pipe going into the radiator. That supply would be "telescoped" into the return part of the valve.

    The supply flows up from that extension and the return water at the bottom of the rad just flows out and down.

    mattmia2PC7060
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 21,009

    Some type of double flow fitting. The tee probably has a baffle or a partition in it

  • mattmia2
    mattmia2 Member Posts: 18,091
    https://forum.heatinghelp.com/discussion/comment/1903098#Comment_1903098

    or a lance like the danfoss fitting

  • Steamhead
    Steamhead Member Posts: 18,879

    @Bubbleheadtoo , this is a piece of heating history. I can't make out the name on that special tee, can we get a better pic?

    Co-Founder, All Steamed Up, Inc.

    Semi-retired

    Baltimore, MD, USA

  • Bubbleheadtoo
    Bubbleheadtoo Member Posts: 2

    Thanks to all for the comments. I’ll get a better picture.

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