DN20M Brass Thermostatic Mixing Valve
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Basic Info
Model NO.: DN20M
Origin: China
HS Code: 84818040.90
Product Description
Pressure (psi or kPa) | 1 psi | 5 psi (34kPa) | 10 psi (69kPa) | 15 psi (103kPa) | 20 psi (138kPa) | 30 psi (207kPa) |
Flow Rate (liters per minute) | 4.5 | 9 | 12.5 | 15.1 | 17.6 | 28.2 |
GPM | 0.98 | 2.0 | 2.7 | 3.3 | 3.9 | 6.2 |
4. What is the thermostatic mixing valve?
A Thermostatic Mixing Valve is a valve that blends hot water (stored at temperatures high enough to kill bacteria) with cold water to ensure constant, safe outlet temperatures preventing scalding.5. Usage of TMVs
Point of use mixing for wash hand basins, bidets, baths and showers in hospitals, schools, sport and leisure facilities, prisons and other public buildings.6. Installation Precaution:
A. All installations should be carried out by a Licensed Professional.7. How They Work?
Upon use of tempered water, a thermostat in the mixing chamber of the valve senses the outlet temperature. The thermostat automatically positions a seat assembly which controls the flow of hot and cold water supplied to the mixing chamber. If the mixed outlet temperature increases, the thermostat will expand moving the seat assembly to allow the cold water inlet port to open more fully and at the same time restricting the hot water inlet port. Conversely, if the mixed outlet temperature decreases, the thermostat will contract moving the seat assembly to allow the hot water inlet port to open more fully and at the same time restricting the cold water inlet port. In both cases the mixed outlet water temperature is automatically and continually maintained at the preset temperature within the tolerances of the valve. In the event of a cold or hot water supply failure, the seat assembly moves to an extreme position shutting off the hot or cold inlet water port. A mechanical adjustment permits selection of the desired outlet water temperature within range of the valve
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