Non-return valve, round air duct AVM 40

Non-return valve, round air duct AVM 40 – Maico – 0093.0013 – 4012799930136: Automatic non-return valve AVM 40 Material: stainless steel, nominal diameter of channel 400mm, horizontal and vertical installation possible. Flow direction for vertical installation from bottom to top. With 2 counter-rotating flap halves made of aluminium. With all-round seal. Non-return flaps open in the air flow and close via spring force. Item: AVM 40, direction of air: ventilation, installation position: vertical / horizontal, material: sheet steel, galvanized, weight: 2.6 kg, flap type: automatic. opening/closing, nominal width: 400 mm, width: 398 mm, height: 398 mm, depth: 198 mm, suitable for box fans: no, suitable for roof fans: no, suitable for duct fans: yes, suitable for heat recovery systems: no, suitable for Wall mounted fan: no, Suitable for built-in wall fan: no, Suitable for residential building fan: no, Suitable for centrifugal fan: no, Suitable for circulation fan: no