FIELD: construction.
SUBSTANCE: device comprises a stop element installed on the water way and connected by a movable part of the device with an accumulator 7, and a stop 9. The stop 9 prevents change of stop element position under action of the accumulator 7 from open for water motion to closed, and is connected at one side with the movable part of the device, and at the other side - with the fixed 10a, 10b part of the device, and loses the stop function when interacting with emergency water. At the same time the stop 9 is exposed to stretching force from movable and fixed parts of the device acting at it.
EFFECT: enhanced reliability.
2 dwg
