- Mixing Valve
- A device used to supply a consistent, lower, pre-regulated water temperature
to a radiant system. Mixing valves are most often used in conjunction with
high temperature boilers, many designed to heat water to temperatures in excess
of 160 degrees. In radiant floor applications, mixing valves do not lower
the boiler temperature. Instead, they are plumbed so that the water returning
to the boiler from the heated floor branches off to the "cold" side of the
mixing valve. In this way the "return" water, after losing much of its heat
to the living space, is re-heated to the proper temperature by bleeding small
amounts of super hot boiler water into the mixing valve.
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