Back draught shutter. Spring loaded blades ensures single directional airflow. Galvanised mild steel case with butterfly type aluminium blades. Sizes are nominal. Actual appearance/scale of product may vary dependant on size.
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This 150mm backdraught shutter connector is designed to prevent unwanted air from flowing back through your ventilation system. The push-fit design allows quick installation between rigid pipes or flexible ducting without the need for specialist tools.
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Extractor Fan. Switching off the fan causes closure of the shutter and prevents undesirable air penetration. With Motion Sensor and Automatic Shutter. Ø - 100mm,A - 180mm,B - 180mm,C - 166mm. A-MATIC series exhaust fans feature an automatic shutter that opens when the unit is switched on.
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Our Back Draught Shutters can help you! In this selection contain 4" 100mm shutters that are designed to stop backdraught when a fan is switched off. Our back draught shutters can fit inside 100mm round pipe or 102mm flexible hose and can be used to join multiple lengths of pipe together to form a long duct run.
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A backdraft damper for backflow prevention. HG ONLINE TRADING SALES INFORMATION.
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Speed: Strong wind 3000 rev / min. Strong Wind: 0.23A. Item Type: Cooling Fan. 1 x Cooling Fan. Opening Size: Approx.175 x 155mm / 6.89 x 6.10in. Motor: Brushless Motor.
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