Chongqing Yuhui Keyu Machine Electricity Equipment Corp. Ltd. is engaged in the research and development of new style float valves and other air cooling equipment. Along with the wide application of high-tech products, we are using innovative technology, and have developed a new type of plastic level control valve (floating ball valve) with the theory of self-locking differential pressure. It has good features such as long lifetime, less abrasion, corrosion-resistance, non-pollution, quicker water flow rate and very low prices which significantly reduce customers' cost accordingly.