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The Watts Thermostatic Hot Water Mixing Valve is designed for installation on water heating equipment to provide tempered water to point-of-use fixtures and is ideal for radiant heat applications. The double throttling design combines hot and cold water control for a sensitive response to water temperature changes in the mixing chamber. It consists of a lead free brass body, solder union connections, solid wax hydraulic principle thermostat, integral filter washers and check valves, virtual shutoff upon loss of cold water supply, and a locking mechanism for the temperature setting.
Provides additional safety by restricting water flow to a trickle upon loss of cold water flow
Solder union connection - 3/4" (1.9 cm)
Lead-free brass construction
Factory set at 120 degrees F (48.8 degree C)
Maximum pressure differential - 25%
| Part Number | 0559109 |
|---|---|
| Valve Type | Mixing |
| Connection Type | Sweat |
| Primary Material | Copper |
| Primary Colour | Gold |
| Pipe Type Compatibility | Copper |
| Maximum Pressure (psi) | 150 lb/in² |
| Number of Pieces | 1 |
| Advanced Features | No Advanced Features |
| Certifications | ASSE Certified, UL Listed, UPC Certified, NSF Certified |
| Assembled Height (cm) | 16.03 cm |
|---|---|
| Assembled Height (in) | 6.31 in |
| Assembled Length (cm) | 11.43 cm |
| Assembled Length (in) | 4.50 in |
| Assembled Weight (kg) | 1.27 kg |
| Assembled Weight (lb) | 2.80 lb |
| Assembled Width (cm) | 6.65 cm |
| Assembled Width (in) | 2.62 in |
| Inlet Size (in) | 0.75 in |
| Inlet Size (mm) | 19.05 mm |
| Outlet Size (in) | 0.75 in |
| Outlet Size (mm) | 19.05 mm |
Only Show Differences | ||||||
| Ratings | ||||||
| Valve Type | Mixing | Pressure Regulating | Mixing | Mixing | Air Admittance | |
| Connection Type | Sweat | Male Thread | Threaded | Threaded | Male Thread | |
| Primary Material | Copper | Copper | Brass | Brass | Copper |
