Lingpai cars have heaters and water valves. The water pipe valve is used for cooling and heating control of the automobile air conditioning heating system. It includes a valve body, a valve cover, a valve plate and a vacuum membrane box assembly. The vacuum membrane box assembly is fixed to the valve body. The valve body has a four-way pipeline structure, and is arranged on it. There are drainage pipes, water outlet pipes, and cold water inlet pipes. The upper part is connected to the valve cover. The valve cover is connected to the warm water inlet pipe. The valve cover is sealed and fixedly connected to the valve body. There is a valve stem in the center of the valve body, and the valve stem extends out of the valve body. The part is curved, and the valve stem rotates with the change of vacuum degree of the vacuum membrane box.
Water pipe valve detection
You can judge by feeling the temperature of the upper and lower water pipes with your hands. First start the engine, and after 3 minutes, touch the upper and lower water pipes. If it is a good thermostat, the upper and lower water pipes The temperature of the water pipe is different from that of the water pipe. Generally, the water pipe is hot and the water pipe is cold. When the engine water temperature reaches 90°C and both the upper and lower water pipes are hot, it proves that the thermostat is good. If the temperature of the upper and lower water pipes remains the same after starting the engine, the thermostat is bad.