A, the difference between water mixing valve and thermostatic water mixing valve:
Mixing valve: it is to adjust the water temperature by yourself. For example, if the water is too hot after washing, you can adjust it yourself.
Constant temperature water mixing valve: set the temperature when using, and when using again, there is a temperature regulator in the solar energy, and the temperature is always within the temperature range set by yourself.
Second, the working principle of thermostatic mixing valve
The mixing outlet of the thermostatic water mixing valve is equipped with a heat-sensitive element, which uses the characteristics of the heat-sensitive element to push the valve core in the valve body to move and automatically adjust the opening of the cold and hot water inlet. When the temperature adjustment knob sets a certain temperature, no matter how the inlet temperature and pressure of cold and hot water change, the ratio of cold and hot water entering the outlet can be changed, so that the outlet water temperature is always constant. The temperature adjustment knob can be set at will within the specified temperature range of the product, and the thermostatic mixing valve will automatically maintain the outlet water temperature.
Third, the advantages of water mixing valve:
1. Adjust high-temperature water to hot water (mixed water) with required temperature without consuming rated power;
2. When the cold water or hot water at the water supply end stops, the thermostatic faucet can actively close the water outlet to prevent scalding and cold shock;
3. Even if the cold and hot water sources are under pressure or the temperature fluctuates, the temperature of the mixed water can be ensured to be stable, and the scalding and cold shock injury during the shower can be eliminated. Foreign mixing valves have great development space in foreign shopping malls. These factors are stable cold and hot water pressure, clean water quality and stable hot water temperature. However, foreign mixing valves are facing great challenges in China. The pressure of domestic cold and hot water sources is unstable, and the solar energy temperature and pressure storage tank is constantly changing. This makes foreign mixing valves lose their competitiveness in domestic shopping malls. The water mixing valves produced by domestic solar water mixing valve manufacturers all put forward some requirements, such as: ideal cold water pressure 0.03- 1MPa, ideal hot water pressure 0.0 1-0.5MPa, ideal cold water temperature 5-29℃ and ideal hot water temperature 50-80℃. This also puts forward strict requirements for the function of solar water mixing valve: the constant temperature cannot be changed because of the pressure change of cold and hot water sources, and the constant temperature cannot be changed because of the temperature change of cold and hot water sources.
4.* * * The same anti-fouling scheme of the valve core further reduces the blockage of the valve cavity caused by the accumulation and deposition of particulate impurities in the water source, and is discharged with mixed water only through the water pressure scouring of the cold and heat sources, thus improving the simplicity of maintenance;
5. The thermostatic valve valve chamber pressure stability and fluctuation planning was initiated, which is beneficial to solve the problem of obvious fluctuation of outlet water temperature and flow rate caused by the unstable pressure of cold and hot water sources in China, and can bear the pressure ratio of cold and hot water as high as 15: 1;
6. Anti-scaling planning of silica gel valve core, it is useful to use silica gel polymer chain to block the scale formed by calcium ions and magnesium ions penetrating the valve cavity material, which ensures the sensitivity of the product after long-term use and greatly prolongs the service life of the mixing valve;
7. The water mixing valve device is simple and convenient. Fix it on the wall with a bracket, and then connect it with a hot and cold water supply pipe, and the output interface is connected with a shower.
What is recommended above is the characteristics and advantages of thermostatic mixing valve, as well as installation precautions and purchase instructions. Therefore, on the one hand, the qualified thermostatic mixing valve can provide us with the temperature in a short time. In addition, the product is made of stainless steel, which is waterproof and anti-corrosive, and it is not easy to be affected and damaged in the later period. We can make a proper and reasonable analysis from this, or learn from the above.