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Back draught shutters

Back draught shutters are designed to block the return air flow in ducts, fans, ventilation and recuperation systems. Large selection of metal and plastic valves we keep in stock. European delivery within 2-4 days, worldwide - 4-7 days.
 
Use and purpose:
  • ZZ series backdraft dampers use with low pressure domestic bathroom fans - connect it to the back of the fan
  • ECO series back draught dampers are used with low and medium pressure fans, also use it as duct connectors
  • AV series backflow valves are used with medium and high pressure fans (kitchen hoods, heat recovery units), the valves have a protruding axis, which will require cutting the duct during installation
  • AVGI series backflow valves with sealed gaskets are used with medium and high pressure fans (kitchen hoods, heat recovery units), just push it  into a duct that does not need to be cuted