Flap valves are not very complicated devices, but play an important role in ventilation processes. They are used as endings of ventilation or air heating ducts. Flap valves are installed for practical reasons, but also for aesthetic purposes – they play a vital decorative role. ASV flap valves are made of 0.6 mm thick steel. Powder coat used to cover the components not only makes them more aesthetic, but also protects against corrosion or scratches. Each device is delivered with a mounting frame, that is made of galvanised sheet metal.
„Spiro” diameter [mm]
Flap valve diameter/side [mm]