The center of the valve body is provided with a valve stem, the part of the valve stem extending out of the valve body is bent, the end of the bent part is sleeved on the connecting rod of the vacuum capsule assembly, and the valve stem rotates with the change of the vacuum degree of the vacuum capsule.
Water heating system is mostly used in cars, trucks and buses with low heating requirements. Water heating and warm air system is mainly composed of heater, hot water regulating valve, blower and control panel. Among them, the blower is composed of adjustable speed DC motor and squirrel cage fan, which is used to blow cold air to the heater, and the cold air is heated and sent into the car. Adjusting the speed of the motor can adjust the air supply of the car. (Photo/Text/Photo: Pacific Auto Network Wu Jiahong)