Water Temperature Control—Recirculation Systems—Digital | The Brain® DRV80R


The Brain® DRV80R

DRV80R Digital Recirculation Valve (DRV) designed specifically to be the primary water temperature controller in a continuously pumped circulating hot water system. DRV80R is supplied with a recirculation return manifold as shown.

Digital technology provides enhanced water temperature control accuracy which resists zero system demand “Temperature Creep” without the use of a manual throttling valve or a temperature activated pump shut-off device (aquastat).

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    Operational Specifications
    • +/-2°F water temperature control at points of use 25’ downstream during demand
    • +/-2°F water temperature control at the DRV during zero system demand “idling” periods
    • 2°F minimum valve inlet to outlet temperature requirement (system recirculation temperature loss).
    • Automatic shutoff of hot water flow upon cold water inlet supply failure
    • Automatic shutoff of hot water flow in the event of a power failure
    • Programmable set point range of 81-158°F (27-70°C)
    • Programmable thermal disinfection mode
    • Programmable 1st level hi/lo temp alarm display
    • Programmable temperature error level for safety shutdown