• +/- 5°F Temperature Stability to fixture (Return Limiter)
• Accuracy at Low Flow Rates
• Maximum Temperature Locking Feature
• Single Replacement Cartridge
Thermostatic Mixing Valves
Thermostatic
Water Temperature Control - Recirculation Systems - Thermostatic features four individual Thermostatic Mixing Valve assemblies and two packaged systems designed for use in pumped recirculating hot water systems.
The complete range has been designed to offer traditional thermostatic mixed water temperature control in applications where there are diverse flow requirements up to 288 gpm (1,090 lpm).
All valves and valve packages designed for recirculation system control are identified with the suffix R.
Sizing
To size, simply match the required flow rate on the charts below with the pressure drop that the existing system can accommodate or the new system design specifies. Armstrong refers to the Modified Hunter Curve, where applicable, when determining system flow requirements.
| Rada Thermostatic Mixing Valves (gpm) | ||||||||||||
| Model | Pressure Drop (psi) | Min. System Draw-Off | Max. Flow | Cv | ||||||||
| 5 |
10 |
15 |
20 |
|||||||||
| 320R | 8 | 11 | 13 | 15 | 0 | 16 | 3.4 | |||||
| 425R | 15 | 22 | 27 | 31 | 0 | 26 | 6.9 | |||||
| 40R | 36 | 51 | 62 | 72 | 0 | 58 | 16.0 | |||||
| 50R | 49 | 70 | 85 | 98 | 0 | 98 | 22.0 | |||||
| Rada Thermostatic Mixing Valves (gpm) | ||||||||||||
| Model | Pressure Drop (psi) | Min. System Draw-Off | Max. Flow | Cv | ||||||||
| 5 |
10 |
15 |
20 |
|||||||||
| 50R-50R | 97 | 137 | 168 | 193 | 0 | 193 | 42.4 | |||||
| 50R-50R-50R | 144 | 204 | 250 | 288 | 0 | 288 | 63.6 | |||||
For an application drawing on Thermostatic Mixing Valves, please click here.
