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To balance a cold water recirculation system, a CircuitSolver® Union Cold Water thermostatic valve is installed at the end of each branch or riser. The valve automatically monitors and modulates flow based on current water temperatures to maintain a set temperature in the system to mitigate Legionella growth.

The CircuitSolver® Union Cold Water balancing valve uses the same reliable and precise thermal actuator technology as the traditional CircuitSolver® for hot water balancing. Designed with ease in mind, the CSU-CW is offered in sizes ranging 1/2" to 1" and is available in a range of configurations to suit individual system needs.
CSU-CW-11-70-CV1
Unit of Measure
1 

Item #

Item Name

Diameter (D)

Length (L)

Open Flow Coefficient (Cv)

CSU-CW-1/2-XXX N/A CircuitSolver® 1.8 Inch (in) Diameter (D) and 3.7 Inch (in) Length (L) Thermostatic Balancing Valve for Cold Water Recirculation System N/A 1.8 in46 mm N/A 3.7 in94 mm N/A 1
CSU-CW-1/2-XXX-CV1 N/A CircuitSolver® 1.8 Inch (in) Diameter (D) and 3.7 Inch (in) Length (L) Thermostatic Balancing Valve for Cold Water Recirculation System with Optional Check Valve N/A 1.8 in46 mm N/A 3.7 in94 mm N/A 1
CSU-CW-3/4-XXX N/A CircuitSolver® 2.0 Inch (in) Diameter (D) and 4.3 Inch (in) Length (L) Thermostatic Balancing Valve for Cold Water Recirculation System N/A 2.0 in51 mm N/A 4.3 in110 mm N/A 1.4
CSU-CW-3/4-XXX-CV1 N/A CircuitSolver® 2.0 Inch (in) Diameter (D) and 4.3 Inch (in) Length (L) Thermostatic Balancing Valve for Cold Water Recirculation System with Optional Check Valve N/A 2.0 in51 mm N/A 4.3 in110 mm N/A 1.4
CSU-CW-1-XXX N/A CircuitSolver® 2.5 Inch (in) Diameter (D) and 4.7 Inch (in) Length (L) Thermostatic Balancing Valve for Cold Water Recirculation System N/A 2.5 in64 mm N/A 4.7 in120 mm N/A 2.7
CSU-CW-1-XXX-CV1 N/A CircuitSolver® 2.5 Inch (in) Diameter (D) and 4.7 Inch (in) Length (L) Thermostatic Balancing Valve for Cold Water Recirculation System with Optional Check Valve N/A 2.5 in64 mm N/A 4.7 in120 mm N/A 2.7
Unit of Measure
1