A company making metal rope have been using AKO Pinch Valves for acid water (VF150.03X.31.30LA) within their application. They take steel rods from mills and turn it into wire using a heat treatment process. The wire is then turned into metal rope which is used on ships, bridges, oil rigs and football stadiums. This particular company used their rope to build part of the Olympic Stadium.
The DN150 Pinch Valve is used to flush out the acidic waste water from the plant.