| 摘要 |
A connection device for securing the ends of conduits (1, 2) having mating end flanges (15) comprises flange clamping means, e.g. a bandclamp type collar (10), having at least one movable element (24) positionable in an operative position in which the flange clamping means clamp the mating end flanges (15) together, power-operable means (27) for moving the movable element (24) out of its operative position to disconnect the end flanges (15) and locking means (32) positionable to prevent or to allow movement of the movable element by the power-operable means (27). A connection system is also disclosed which incorporates a connection device and is intended for connecting flanged conduits provided with fluid check valves (3, 4). The locking means (32) is positioned to prevent movement of the movable element (24) when the check valves (3, 4) are open. |
