Hot and Cold Water Mixing Units

Assembly 3031—Standard

The Rada^® 320 3/4" (20 mm) inlet/outlet(s) thermostatic mixing valve (TMV) is of disposable cartridge construction. It features unique full-range temperature control from full cold to field-adjustable maximum temperature limit stop in a single handle turn.

The 3031 can be set and locked to a single temperature and will hold outlet temperatures +/-2˚F (1˚C) in the event of inlet pressure and/or temperature fluctuation or change.*

Thermal-shutdown capability protects the operator in the event of an inlet supply failure. This model includes an integral tandem valve comprising two full-port ball valves cross-linked by a stainless steel bridge piece and lever for simultaneous on/off control of both inlet supplies. The complete assembly is mounted on a heavy-duty stainless steel back plate that is suitable for wall or column installation.

Assembly 3031 is supplied fully assembled and pressure-tested with strain relief and a 3/4" (20 mm) coupling for hose attachment. Inlet check valves are required but not supplied.

Assembly 3031S—Premium

The 3031S is the same as the 3031, but with corrosion-resistant nickel-plated components and integral spring-loaded check valves.

*IMPORTANT NOTE: Other thermostatic products used for this application cannot provide full cold to field-adjustable maximum limit stop temperature range or access temperatures within 5˚F (2˚C) of either inlet supply temperature.