发明名称 Backflow prevention device for waste water installations
摘要 The device has an inlet pipe (5) connectable to a domestic sewage line, and a drain line (6) connectable to a sewer. A pumping device (8) pumps sewage water (12) over pressure lines (10, 20) into the sewer. A shut-off device (7) i.e. pinch valve, stays in a directly or indirectly controlled connection with the pressure line and/or the drain line such that the shut-off device is shut when overpressure exists in the pressure line and/or the drain line. A membrane device (13) disconnects the flow of sewage water from hydraulic medium (14) to directly or indirectly control the shut-off device. The membrane device is a tensile hose.
申请公布号 EP2639369(A3) 申请公布日期 2015.01.14
申请号 EP20130159129 申请日期 2013.03.14
申请人 ACO SEVERIN AHLMANN GMBH & CO. KG 发明人
分类号 E03F5/22;E03F7/04 主分类号 E03F5/22
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