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  • Aug 28, 2010, 11:56 PM
    cheetta54
    What is a tempering valve
    What is a tempering valve
  • Aug 29, 2010, 08:07 AM
    speedball1

    To temper hot water you open up the cold water side until the desired temperature is reached.
    A tempering valve is the valve that feeds cold water to your bath when it's too hot. Regards, Tom
  • Aug 29, 2010, 11:19 AM
    Widdershins
    Quote:

    Originally Posted by cheetta54 View Post
    what is a tempering valve

    There are several kinds of tempering valves for a number of different applications:

    A tempering valve can be installed on a indirect fired HW storage tank (in combination domestic/hydronic heating systems) to reduce the temperature of the stored domestic water -- This is accomplished by mixing cold domestic water with overly hot water to bring the water temperature down to more manageable temperatures for domestic use.

    A point of use tempering valve can also be installed on a lavatory or hand sink as an anti-scald device -- Usually in commercial applications where the domestic water must be at a higher temperature for dish washing and glass washing machines.

    And some of the more stringent Plumbing Codes require tempering valves when non-pressure balanced tub or shower valves are installed or when two handled valve sets are used in deck mounted tub installations.

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