16 and a key or actuator 18 for actuating the internal valve components not shown to regulate the water flow therethrough the open valve position is illustrated in fig3 in solid lines and the closed position is illustrated in phantom lines the individual components of the valve security device 10 are perhaps best illustrated in the exploded view of fig6 those components include an inner body 20 which is adapted to fit over and engage the actuator key 18 on the valve head 12 as seen in fig4 the interior of inner body 20 is configured to engage and as shown preferably mate with the surfaces of the valve actuator key 18 for valves having differently sized and or configured actuators the inner body portion 20 of the security device 10 would have correspondingly sized and configured interior contact surfaces for the valve shown in the drawings a retention pin 22 and a pair of set screws 24 provide the securement of the inner body 20 to the valve head 12 such that rotation of the inner body 20 effects corresponding rotation of the valve actuator 18 the retention pin 22 extends through aperture 23 in the inner body portion 20 of the security device and through an aperture 25 formed in the valve actuator 18 to prevent the inner body 20 from being pulled from the valve head this securement is also illustrated.