What is the principle of how to save water in a hotel water-saving valve like this?

At present, the so-called water-saving faucet [1] refers to the ceramic sealed faucet (water-saving faucet) that meets the requirements of CJ 164-2002 "Water-saving Household Appliances". This is the case with the 2 million water-saving faucets distributed by the Beijing Municipal Government to the public free of charge. Its so-called water saving is relative to the cast iron spiral lifting faucet-the water saving effect is very limited.

The purpose of water-saving faucet is to solve the problem of saving water and preventing water from flooding other people's homes.

At present, a new type of faucet "automatic water-saving faucet" adopts a unique process design combining mechanical and hydraulic principles, adopts a brand-new patented technology of vertical sealing downstream, and uses special silica gel with non-toxic and odorless damage self-repair function on the sealing working face, so that the "automatic water-saving faucet" not only has a traditional manual switch, but also has a safe and practical "self-closing function of forgetting to close it", which can automatically close if it is forgotten or not closed, and can be ensured once it is closed.

The inspiration for developing this product comes from the inventor accidentally running water at home. After a soaking accident caused by forgetting to turn off the faucet due to water cut, and after ten years of painstaking research from the birth of research and development ideas to the maturity of products to the market, this kind of "automatic water-saving faucet" can completely eliminate the waste of water resources, reduce the operating cost of public places, and completely relieve the trouble of families forgetting to turn off the faucet, and is suitable for all places that need to use the faucet. According to different places of use, the automatic closing time can be set freely in the range of 10 second to 60 seconds, and different product appearances can be designed according to different places to meet the individual requirements of customers.

At present, China is fully implementing the Scientific Outlook on Development and speeding up the construction of an environment-friendly and resource-saving well-off society. Dolando, an automatic water-saving faucet, conforms to the current national policy requirements and industrial orientation, and conforms to the social development trend.