251 / | HD | VALVES AND VALVE ACTUATION |
89 | DF | WITH MEANS FOR BLOCKING OR DISABLING ACTUATOR {6} |
95 | DF | .~ Released by non-valving actuator motion {3} |
96 | .~.~ Linear reciprocation of rotary handle {1} | |
97 | DF | .~.~.~> Latch connects actuator to body through head |