Several sizes to fit most 22mm to 62mm diameter. Compact in size, yet highly visible and easy to use. Effective fit for difficult to secure plug valves. Base of the lockout device can remain in place once applied. Base generally does not interfere with valve activation by wrench or removable handle. Plug Valve Locking Device designed to fit over the stem of plug valves and prevent connection of the valve lever. Durable,lightweight temperature difference resistance -30～140℃. thermoplastic material is chemical resistant. and performs effectively in extreme environments. Valve locks are recommended to be used in conjunction with steel padlocks and safety signs to achieve energy isolation, equipment locking, and prevention of misuse. The lock body is made of A3 steel plate, the surface is sprayed at high temperature, it is not easy to rust, and it is suitable for various harsh working environments