• Model:BDP

Backdraft Dampers - BDP

£ 5.98 (excl. VAT)

£ 7.18 (inc. VAT)

Ducting Backdraft Dampers

The BDP01 damper has aluminium lamellae which open during the air flow in one direction and close when air is draught back. When no air is flowing, the lamellae are maintained closed using a spring..

Also used to prevent movement of odours and air flow in ducting and noise reduction.

Available sizes - 100m to 315mm, Please select above

Download specifications HERE

Available Options

1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps3 x Electronic extractor fan speed controller - FSC 1.53 x EC6H - Reversible Group Fan Electronic Controller1 x 5-Speed Controller for use with Elta SAX Classic Fans2 x Elta 6 Amp Electronic single phase speed controller with TK1 x Elta 2 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 16amps1 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.2 x Airvent ceiling fan controller1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x ELTA - Single Phase Transformer 12amps1 x EFSC-6N- Single Phase Speed Control2 x Elta 6 Amp Electronic single phase speed controller.1 x COM-31 x ELTA - Single Phase Transformer 10amps1 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 x EM30-24 Electro-Mechanical Control Panel1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Elta ACO Panel 149-ACO18B1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Transformer (silent) speed controller - RE 1.5 Amp1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3552 x Speed Controller - REB51 x Elta Wall Cowl SWC56/631 x REB-CVF 0-10v Controller1 x Elta Wall Cowl SWC35/401 x GRA-100 External Grill by S&P1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x Elta Wall Cowl SWC25/311 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Jet Cowl - 315mm1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Vent Axia ACM 150 inline mixed flow duct fan2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Vent Axia ACM 100 inline mixed flow duct fan2 x CS2 Current Switch1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Vent Axia T-Series Controller2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x CBM 9-9 550w 4P VR (Open Motor)2 x Speed Controller - REB11 x UB47- Universal Insulated Terminal1 x SAVE VSR 300 heat recovery unit4 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Multi Input Run On Timer - 0 - 20min - CFCU3 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost2 x Helios TSW 7.5 Amp Transformer speed controller1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Transformer 5 Speed Controller - ATC1-10TK2 x Transformer 5 Speed Controller - ATC1-4TK1 x Remote controller FLEX - for VEKO INT1 x Transformer 5 Speed Controller - ATC1-8TK1 x Helios TSW 3 Amp Transformer speed controller1 x DEF-140T Inlet Guard for the CBT-100N2 x Vent Axia ACM 125 inline mixed flow duct fan1 x Systemair Save Connect 2.0 Internet Module2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x MWS 3 – Transformer Controller With Motor Protection1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven2 x WS - Reversing Switch from Helios Fans1 x TG-K Duct temperature sensor1 x Remote Timer Control - 13512 x Helios HQW-200/2 - IP552 x Transformer (silent) speed controller - RE 3.0 Amp1 x REE-1 Electronic Speed Controller2 x Helios HQW-630/4 - IP551 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x CBS-60 Outlet Flange for CSB/CBT-601 x BEAS-control module1 x TG-K3/NTC10-01 - Duct temperature sensor1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Transformer (silent) speed controller - RE 5.0 Amp1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x Transformer Speed Control - RTRE- 1.5Amp1 x Transformer Speed Control - RTRE- 12.0Amp1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Multiflow SMB550/4-1AC1 x Speed Controller - REB1-N1 x MTP 10, 10K, Speed control1 x Elta Variable Speed Drive IP66 - 2.2KW1 x QPTW 250C Acoustic Twin Fan with Controller1 x Vent Axia Silent 100T (TIMER)1 x PIR Sensor - PIR21 x VTR 300 STD Filter Kit1 x Helios HQW-315/4 - IP551 x Contactor Interface Station - CI91 x Silent 100 Window Kit - windowS1 x CBT-100N Centrifugal1 x TG-K Duct temperature sensor1 x PIR Sensor - PIR41 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Push Timer Switch - ZA4
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40

I have a loft mount extractor fan which was very noisy. I ...