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Multi-leaf dampers, excess pressure dampers For shut-off and restriction in ventilation systems, SCHAKO produces multi-leaf dampers and excess pressure dampers. Multi-leaf dampers flaps are used for pressure and volume setting in ventilation systems. Alternatively, they are used for finishing an air duct, in order to avoid the ingress of cold air, for example after standstill of a system. Excess pressure dampers or check valves are used for preventing a backflow in piping systems and require a low opening pressure, to be able to open and close automatically.

Louvre flaps

Excess pressure dampers