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    Taco zone valve (2 Posts)

  • Housedoc Housedoc December 13, 2011 @ 11:20 PM
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    Taco zone valve

    This is technically not a radiant question, but it is related. Does anyone know the difference between a taco 557 zone valve and the geothermal version 557g?
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  • Joe Mattiello Joe Mattiello December 15, 2011 @ 6:51 AM
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    Taco zone valve

    The 557g materials of construction is different making it durable for open systems; mainly geothermal systems. The 557 is a high shut off head valve at 150 ft/hd
    joe mattiello
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