| 摘要 |
<p>Identical fitting bodies (10, 10 min ) each include a ball valve (22, 22 min ) rotatable 90 DEG between open and closed positions by an exteriorly accessible handle (48, 48 min ). Locking means (68, 74, 68 min , 74 min ) of one coupling half associated with the ball valve actuator through cam structure co-operates with locking means defined upon the other coupling half (75 min , 75) wherein rotation of the ball valves to the open position is prevented until the coupling halves have been fully connected. Further, the locking means prevent the coupling halves from being disconnected until both ball valves have been closed.</p> |
