A water supply company in Hunan uses the EVE2100 electronic intelligent valve, which is connected to the pressure sensor signal to realize the pressure PID control. The intelligent valve comes with NB-IOT wireless communication, real-time upload data, and realize all-weather automatic unattended to ensure the high water pressure. The cost-effective products bring energy savings, and ensure the normal demand of the people in the peak period of water use, and solve the water demand of the high people, It has made a great response in the daily life of the people.