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                                                            HomeAir Control DampersVolume Control Dampers Single blade balancing damper
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                                                            Backdraught shutter £4.71 – £15.33 Ex VAT
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                                                            Single blade balancing damper

                                                            £7.19 – £13.78 Ex VAT

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                                                            SKU: SBDC Categories: Air Control Dampers, Volume Control Dampers
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                                                            • Description
                                                            • Additional information
                                                            Description

                                                            NCA Single blade balancing dampers are designed for use in circular ducting to allow airflow to be adjusted or balanced.
                                                            They are ideal for use as balancing dampers for branch ducts to individual grilles.
                                                            The lockable hand control shows blade position from 100% to 0%.
                                                            N.B.These dampers are not suitable for applications where the duct needs to be completely shut off, as there is no seal around the blade.
                                                            Also available with extended spindle for motorisation – please contact us to order.

                                                            2nd Duct dia (mm)No
                                                            Cowl SizeNo

                                                            SBD Single Blade Dampers, also known as flap dampers, are designed to be used as balancing or control dampers, not shut off.
                                                            They are intended for use in conjunction with circular ducting, and have a profiled outer case designed to aid tight fitting into ductwork.
                                                            NCA single blade dampers are manufactured from galvanised steel, and are available in standard sizes from 100mm to 315mm in diameter.

                                                            Additional information
                                                            Weight1 kg
                                                            Duct Size(mm)

                                                            100, 125, 150, 200, 250, 315

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                                                            Backdraught shutter

                                                            £4.71 – £15.33 Ex VAT
                                                            Backdraught shutter Product Code: BDS - Low cost solution for preventing backflow through a duct - Galvanised casing and blades - Spring assisted closing - Metal hinge pin
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