1. The principle of the magnetic lock valve is to fix a magnetic spring corresponding to the lock head at the end where the key and the lock head are connected. Press and lift the magnetic lock gently with your hand to open the magnetic lock operating valve switch. Magnetic lock valve is a magnetic lock that relies on the power of magnetism to control the opening and closing of the closing parts in the valve. Generally used for valves with important special positions and functions to prevent the valve from being opened and closed at will. Seamless, anti-blocking, waterproof, anti-corrosion, and easy to use; it is favored by industries such as water supply, heating, gas, and solar water heaters. 2. Extended data The utility model has good locking performance, strong resistance to damage, and stable and reliable performance. The valve stem is sealed with high-quality silicone rubber, which is resistant to high temperatures and has zero leakage. The magnetic lock is easy to open and reusable. The nominal diameter adopts the national standard, has no shrinkage, and the medium flow resistance coefficient is small. The valve body is made of brass hot forging. The mechanical properties are higher than ordinary brass, never rust, beautiful and reliable. The digital number of the special tool is set, which is safer and more reliable, and solves the problem of mutual opening of traditional locking valves; the integration and simplification of the opening tool does not require the cumbersome operation of ordinary magnetic trivial closing valves. The utility model is composed of a spring, a lock head and a valve body. The lock can be placed on the valve at will, but cannot be disassembled at will. It is characterized in that the side end of the lock head is provided with four spring holes at equal intervals, and the springs rest on the magnetic pins (balls).