Patent ID: 7540468

Claim:
A valve assembly, comprising: a valve body having an inlet port, an outlet port, and a flow passage extending between the inlet and outlet ports; a valve element disposed within the valve body flow passage and movable between a closed position and a full-open position; a shaft coupled to the valve element and extending through the valve body; an engagement stop coupled to, and extending radially from, the shaft; an actuator housing coupled to the valve body and at least partially surrounding the shaft; a manual lockout movably coupled to the actuator housing and at least partially surrounding the shaft, the manual lockout configured, upon receipt of a torque, to selectively engage and disengage the engagement stop, the manual lockout locking the valve element in the full-open position when engaging the engagement stop; and a lock coupled to the actuator housing and movable between a lock position, in which the lock at least inhibits movement of the manual lockout, and an unlock position, in which the lock allows movement of the manual lockout.