These gate valves are comprised of 2 flattened half moons with a hollow centre. Hinged at one side, they are placed over the valve and then closed, leaving the valve inside the lockout. This can then be locked off using up to 3 padlocks directly, or more if used in conjunction with a hasp. A simple solution for isolating gate valves, these lockouts slip over the top of the handle once the valve is in the appropriate position. When fitted the valve handwheel is completely encapsulated within the lockout, which will rotate freely around the valve preventing operation.