Shut-off device for a gas line comprises a safety unit having a barrier body arranged in an actuating unit outside the housing of the shut-off device and interacting with a valve rod

摘要

Shut-off device comprises a safety unit (10) having a barrier body (13) arranged in an actuating unit (7) outside the housing (2) of the shut-off device and interacting with a valve rod (6). The barrier body is held in the barrier position by a melting body having a eutectic solder. A spring force is applied to a closing spring (18) supported on the actuating unit. Preferred Features: The valve rod moves linearly into the closing position. The valve rod is arranged in a hollow shaft (21) of the actuating unit. Locking devices (25) are assigned to the hollow shaft for holding the actuating unit with the valve rod either in the open or in the closed position.