| 摘要 |
This invention relates to a valve lockout device (10) for locking valves to open or closed positions, which valves being operable by displacement of an actuator arm (16) controllable by an actuator. The lockout device (10) comprises mounting means (14, 12) for mounting the device (10) between a valve and an actuator, a cylindrical central sleeve (18) between the mounting means (12, 14), the sleeve (18) having a sleeve aperture (18.2) and an adjustable collar arrangement (20) arranged around the sleeve (18) and operable between a fixed condition and an adjustable condition in which the collar arrangement (20) is displaceable relative to the sleeve (18). The actuator arm (16) is receivable in the sleeve (18) and defines an aperture (16.3) alignable with the sleeve aperture (18.2). The collar arrangement (20) defines an alignment aperture (22.2) such that in the adjustable condition, the collar arrangement (20) is displaceable relative to the sleeve (18) to bring the alignment aperture (22.2) in register with the sleeve aperture (18.2) and the actuator aperture (16.3) such that a locking pin (30) put through aligned apertures (16.3, 18.2, 22.2) locks the valve to the open or closed position. |
