A biogas plant is a complex treatment system constructed from many different components. Each of these components is subject to the highest requirements. In this case, the knife gate valve must be completely airtight. This applies to all raw materials required for the production of alternative energy, whether it is food, leftovers, manure, untreated wastewater, or agricultural waste. The unique design reliably ensures zero leakage in the valve seat area and the atmosphere. This makes our V-shaped ball valve the perfect solution for biogas plants, which has been the case for decades.