Compared with this, the function of the L-type is relatively simple. In the L-type electric three-way ball valve, only the two pipes opposite the front can be connected. For example, the three ports of ABC and the port of B between A and C can realize the flow between AB and BC, but the flow between AC cannot be realized, so it can only play the role of distribution, There is no way to realize the role of convergence. 　　　　

If the use force is not appropriate, the spring in the cylinder is easy to be damaged, or the aging problem directly occurs, which also easily leads to air leakage in the cylinder, and even more serious, the valve cannot be closed. To solve this problem is not some conventional methods, but to choose appropriate solutions according to the actual situation. For example, if the valve is opened by air, the valves at both ends can be closed manually first, and then opened by central control. After the connecting piece at the connection is removed, the air source can be cut off directly, thus releasing some of the gas in the valve. If you see no air leakage, you can restore the valve to the previous position to ensure normal use.