FIELD: pneumatic devices for shutoff of sewage collector from ground surface through manholes filled with liquid; devices for shutoff sewage system sections; applicable in maintenance of public utilities and sewage nets of production units. SUBSTANCE: device includes flexible bottle connected with guide pipeline for supply of compressed air consisting of straight and curved parts. Pipeline is made in the form of stick with rigid end section which is located in flexible bottle and its length equals 2/3 diameter of flexible bottle. The latter has temporary banding. EFFECT: decreased maintenance cost; reduced time for coping with emergency. 1 dwg
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