• 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

2 x MWS 1.5 – Transformer Controller With Motor Protection1 x Round ceiling diffuser 350mm1 x EFSC-6N- Single Phase Speed Control2 x Transformer (silent) speed controller - RE 3.0 Amp1 x ELTA - Single Phase Transformer 10amps2 x Remote Timer Control - 13512 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x ACO 149-ACO1/EDV1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EC-Vent Room Unit1 x Elta ACO Panel 149-ACO18B1 x Silent 300 CZ Design PLUS Extractor Fan2 x Systemair Save Connect 2.0 Internet Module1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x WS - Reversing Switch from Helios Fans1 x GRA-100 External Grill by S&P1 x MEV Spider Additional Spigots1 x Elta SCP450/4-1AC - IP551 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x ELTA - Single Phase Transformer 4amps1 x Single Deflection Grille 400mm with OBD damper1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH2 x Mini Diffuser - 100mm1 x Egg Crate Grille with Dust panel filter 1 inch- 300x3001 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Transformer 5 Speed Controller - ATC1-4TK1 x Round ceiling diffuser 250mm2 x Elta 6 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x TG-K3/NTC10-01 - Duct temperature sensor1 x DEF-CBM-RE-7 - Protection Guard1 x Speed Controller - REB11 x Rectangular Airbrick Adaptor1 x MTP 10, 10K, Speed control1 x MTS10- extractor fan 3 step switch1 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B1 x Speed Controller - REB2.5-N1 x Elta Variable Speed Drive IP66 - 2.2KW1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x CBT-100N Centrifugal1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller2 x Compact SCD450/4-1AC2 x AIRVENT speed control - AIR4019611 x DS-2 2-Speed Switch (3 Phase)1 x IR24-P - Presence detector1 x VTR 500 STD Filter Kit1 x 100mm Round Connector with Damper1 x Helios HQW-355/4 - IP551 x Flat Roof Terminal -OFT 5 - Asphalt1 x DPD 12PM Delivery Surcharge1 x Duct Termination with Mesh - 400mm1 x CBM 7/7 4p 300W RE-VR1 x Bathroom Fan -Envirovent- Silent 100 S (Standard Model)1 x Elta SCP450/4-3AC - IP551 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-10TK1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost2 x TDP-D Pressure Sensor with Display1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-8TK1 x Helios TSW 1.5 Amp Transformer speed controller1 x RTRD - Three Phase Speed Controller - 2 Amp1 x DEF-140T Inlet Guard for the CBT-100N1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x PM230-TF, AC 230V Damper Actuator, Spring Return, 2 x SPDT, 72C Thermal Fuse1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x ERR 20/1 Centrifugal inline fan1 x Two Speed Switch - REGUL-21 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x Electronic extractor fan speed controller - FSC 1.51 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box1 x EBM-Papst D2E097-BK76-98 Double inlet1 x Speed Controller - REB101 x Speed Controller - REB51 x Elta Turboflow Max TF056J23-A6-10 - THREE PHASE1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Helios HQW-200/4 - IP551 x Transformer Speed Control - RTRE- 5.0Amp1 x REE-2 Electronic Speed Controller1 x MTV-1/010 Controller 0 to 10V+1 x CBM 9-9 550w 4P VR (Open Motor)1 x PIR Sensor - PIR21 x REB-CVF 0-10v Controller1 x Transformer Speed Control - RTRE- 1.5Amp1 x TD Mixvent 800/200 EEXEIIT31 x Speed Controller - REB81 x Silent 100 Window Kit - windowS1 x RDH FLEX-SQUARE - ADH/RDH 04501 x Helios HQW-250/4 - IP551 x Contactor Interface Station - CI91 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x SG-200 Fan Guard for the HQW 2001 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x DDMP 09/09 Mounting Flange1 x Silentub - STUB 1001 x Round ceiling diffuser 400mm1 x DDMP 12-12 3F 1810W M6A4 DG01 x Elta Variable Speed Drive IP66 - 4.0KW1 x Singleflow SSDL315-1EC1 x Electrostatic Precipitator - 1H x 3W1 x DEF-900AN1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x 220x90mm Insulated Rectangular Horizontal 90° Bend1 x EBM-Papst D3G133-BF05-14 Double inlet1 x CO2 Room Sensor - CO2-R1 x 220x90mm Insulated Rectangular Horizontal 45° Bend1 x Potentiometer EGH 01 - for DDMP Fans1 x 220x90mm Insulated Rectangular Vertical 45° Bend1 x EM30-24 Electro-Mechanical Control Panel1 x CBA-100 Inlet Flange for CBT-1001 x CBM 7/7 147w 4P RE-VR1 x Ancillary Pack for SLC-800 for 4 Pole and SLC-800/6B-3AC1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x CBT-130N Centrifugal ATEX II 3D ExtD 125*C1 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x ACO3TO-ADS-VFC-7.1A1 x Run On Timer - 5s - 4hrs - RT5A1 x Twinflow STDL315-1EC1 x DDMP 07/07 Mounting Flange1 x Helios ESA-1 Surface mounted Speed Control 1amp1 x DDMP 10-08 FLANGE1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x CBB-60N Centrifugal1 x DDMP 10-10 1F 1000W M6A2 DA51 x ELTA - Three Phase Transformer 3amps1 x CBS-100 Outlet Flange for CBT-1001 x Quietflow Twin SQTDCV250-1ECL1 x DS-2/2 2-Speed Switch IP54 (Single Phase)1 x TUNE-R-250-2-M4 - Control Damper1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x Binks Bullows - Spray Booth Filter1 x CBB-80N Centrifugal1 x RUCK MTP 20, 10K, Speed control1 x 125mm Round Connector with Damper1 x CBM 9/7 4p 420W RE-VR1 x CBM Low Pressure Centrifugal Fan - CBM 7/7 6 Pole 72watt CVR1 x Duct Termination with Mesh - 450mm1 x CMT-2 120/50 - 0,09Kw - LG270 Single inlet centrifugal fan direct driven1 x DDMP 09/07 Mounting Flange1 x CBP-9/7-RC1 x Elta Louvre Shutter - 400mm1 x FAST-TRACK RANGE 75mm - Straight Connector1 x Duct Termination with Mesh - 250mm1 x SPI-200 C Iris damper1 x Elta Wall Cowl SWC45/501 x CBT-130N Centrifugal ATEX II 2G Exd IIB T41 x Elta SCP315/4-1AC - IP551 x Elta HXP 800mm 6-Pole (Three Phase)1 x TD ECOWATT 160/100 Inline Duct Fan - TD-ECOWATT1 x KRJ - 120 Inlet Guard for CBB/CBT fans1 x FU 22 25 Frequency Inverter1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x DDMP 10-10 FLANGE1 x Elta SLC560/4C-3AC - IP551 x CBM Low Pressure Centrifugal Fan - CBM 12/9 6 Pole 736watt C1 x Biflow SB315-CON4-1 - High Temperature Bifurcated Fan1 x EX 140A-2 (Three Phase) Centrifugal Fan (ATEX)1 x Envirovent Silent MV160/100S Mixvent - 100mm - (5 year warranty)1 x Elta SCP500/4-3AC - IP551 x CBS-160 Outlet Flange for CBT-1601 x Elta - SMT 125 Mixvent Inline Fan - Clearance Stock Line1 x Chaysol DA 7/7 NT (V600002)1 x Chaysol Da 12/12 CMAL - 1100W 6 Pole - Closed Motor - Three Phase1 x Biflow SB500-CON2-3 - High Temperature Bifurcated Fan1 x ELTA - Three Phase Transformer 10amps1 x ERM180EXE Bracket1 x Elta Turboflow-TF - 630mm - Three phase1 x FAST-TRACK RANGE 90mm - Seal Ring (1 bag of 10)1 x Atex Inline Fan 180mm - ERM18EXE1 x Jet Fan IV 100-4 IE3 Induction Fan1 x Elta Standard Ambient Flexible Connector - 350mm1 x EB-100N S - Centrifugal Fan1 x Impeller Side Guard - 450mm1 x Ancillary Pack for SB-Biflow 250 model1 x Elta Standard Ambient Flexible Connector - 630mm1 x DTV200 - Differential Pressure Switch1 x Soler & Palau - Contra Rotating TCBTx2-630 - IP651 x 204x60mm Rectangular to 100mm Round Adaptor1 x Contra Rotating TCBBx2-630 Cased Axial - Single Phase - IP65 - Soler & Palau1 x Same Day Shipping Surcharge - City Sprint1 x Soler & Palau - Contra Rotating TCBTx2-560 - IP651 x 220x90mm Insulated Rectangular T-Piece1 x Vent Axia ACM 100 inline mixed flow duct fan1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x Transformer 5 Speed Controller - ATC1-2TK
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
£ 11.49

Look good, works well, except the shaft of the lanellae cuts...