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Two way zone valve

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by James Ascherl, Nov 20, 2011.

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  1. James Ascherl

    James Ascherl Member

    Joined:
    Jun 6, 2010
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    Loc:
    Hinckley, Ohio
    I have installed a Taco 573-2 zone valve at the top of my storage. Water will flow both directions depending on whether the tanks are charging or the demand is from storage. The valve has a directional arrow on it. Which way should I install it?

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  2. bupalos

    bupalos Member

    Joined:
    Jan 26, 2009
    Messages:
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    Loc:
    ne ohio
    bump, because I don't know the answer here but need to.
  3. in hot water

    in hot water New Member

    Joined:
    Jul 31, 2008
    Messages:
    895
    Loc:
    SW Missouri
    If it has a directional arrow, then is is designed to flow one direction. Most two way zone valves are designed to shut off against flow with a spring return or thermo electric operators. Those big, boxy White Rogers 1311 could possible flow either direction. It has a slotted spool and motors open and close.can

    A three way zone valve can flow one of two different directions. Or a motorized ball valve could flow either direction.

    hr
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