Single-Point and Zoned/Group Control Systems—Thermostatic

Rada^® 425

The Rada^® 425 thermostatic mixing valve is suitable for safe, accurate water temperature control in single open-outlet or “dead leg” multiple point-of-use applications. Its compact design and top and/or bottom blended water outlet make the Rada 425 ideal for recessed enclosure, plumbing chase and mechanical room installations. The unit is capable of close temperature control at full (49 gpm/185 lpm) and reduced (2 gpm/7.5 lpm) flow rates, which makes it an excellent selection for larger “group” fixture control.

The Rada 425 can blend water within 5˚F (2˚C) of either inlet supply because of “low seepage” across the internal proportioning mechanism, while still maintaining thermal correction/shutdown capability. This feature makes the Rada 425 a superb selection for secondary or “zoned” fixture/building water temperature control.

Rada^® 425D

A derivative of the standard Rada^® 425, the Rada 425D, too, is suitable for safe and accurate water temperature control in single open-outlet or “dead leg” multiple point-of-use applications. This assembly is ideal for surface mount, recessed enclosure, plumbing chase and mechanical room installations.

Supplied from the factory pre-plumbed and pressure-tested, Rada 425D has standard combination inlet check stop/union/strainers, thermometer and outlet stop valve.* The unit comes as a polished chrome thermostatic mixing valve with self-finish brass/bronze fittings and connections.

*Rada 425D is supplied with top outlet and can be site-configured for bottom outlet application.

Rada 425DC

This unit is supplied as a polished chrome thermostatic mixing valve with nickel-plated fittings and connections.

Rada 425, 425D and 425DC – Safety, economy and comfort

• Dual thermostats provide redundancy in case of individual thermostat failure
• Integral check valves prevent cross connection
• Maximum temperature limiting and single-temperature locking feature
• Instant automatic shutdown prior to a 5˚F (2˚C) temperature rise/fall in the event of an inlet supply failure
• New technology and state-of-the-art materials reduce cost
• Design and functional simplicity reduce field maintenance and stocking requirements
• Maintains a steady outlet temperature by constant internal monitoring and correcting of inlet supply temperature and pressure fluctuations

NOTE: The Rada 425 can also be ordered in a recessed stainless steel cabinet (425-FMC) or surface-mounted stainless steel cabinet (425-SMC).