During the operation of a famous hot spring enterprise in Tangshan, Nanjing, the electronic intelligent valve of our company is used to collect the temperature of the pipeline through the temperature sensor. The valve is equipped with PID control. It always maintains the temperature of the hot spring hot water pipeline at about 37-38 ℃, which stabilizes the temperature, brings good human feelings, alleviates vasospasm, promotes blood circulation, and eliminates skin tension, and brings great public praise to the enterprise.