Non Return Valve
1,000 - 3,000 Per Piece
Growing urbanization areas means greater sewage volume to be evacuated. Malfunctioning or blockages downstream in the network. 1 3 2 4 Emergency closing handle Closing Flap Removable Cover The main causes of back flow are Overall under-sizing of the public sewage. High peak of flow (example in case of intense rainfalls).
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