| 摘要 |
A pneumatic feed-system for flushing by compressed air, pressurized effluent discharging pipe-works is constructed as follows: An air supply element (4) is attached to the effluent conveying pipe (3), on the pressure side of the effluent pump (2). A non-return valve unit (9) is placed in the pressure pipe (3) in front of the air supply unit (4). Preceding the latter (4) a reverse-current preventing unit (11) is also present for the air-inlets (8). The system is also fitted with a stop-cock. |
