The stack dampers are designed for work as a component of combined cycle gas turbine unit. The stack dampers are designed to bank a recovery boiler when the turbine is not under operation as well as to collect and drain the atmospheric precipitation when the recovery boiler is cut off. These dampers open automatically when the maximum permissible pressure in the gas duct is reached.
We offer the stack dampers with rectangular and round cross-sections and in different design versions for operation at medium temperature up to 200°С or up to 650°С. The stack dampers may be supplied with built-in or stand-alone electric actuators. The round dampers are available within the size range from DN 1700 mm to DN 7500 mm, and the rectangular dampers are available from 1800x1800 mm to 7500x6000 mm