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delta T circulator

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by chuck172, Aug 25, 2009.

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  1. in hot water

    in hot water New Member

    Joined:
    Jul 31, 2008
    Messages:
    895
    Loc:
    SW Missouri
    Look into a motorized ball valve, they consume power to open and power to close, no power consumption while open. just like a manual valve. They tend to have a higher Cv also with a full port opening. They do need a signal to open and close, they are not spring return. more $$ than a spring return valve of course.

    Here is a simple thermostatic zone valve a friend built.

    A greenhouse window operator, connected to a ball valve that he wound a spring around. as the room warms, the ball valve closes down. No power to open or close!

    hr

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  2. Gooserider

    Gooserider Mod Emeritus

    Joined:
    Nov 20, 2006
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    Northeastern MA (near Lowell)
    If you had a link or a picture, it didn't come through, but the motorized ball valve does sound like what I had in mind for sure...

    Gooserider
  3. julien

    julien Member

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    Jan 7, 2008
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    Loc:
    Québec Canada
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