Non Return Valves & Shutters
Non Return Shutters
Displaying 1 to 17 (of 17 products)
Backdraft Dampers - BDP
£ 5.98
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 maint...
Backdraught Shutters 039-SFSV-63/71
£ 192.96
Backdraught Shutters 039-SFSV-63/71 Back draft shutter for SSRL 710...
Flanged Damper 019-0250-STD
£ 424.76
Flanged Damper 019-0250-STD
Prevents reverse flow of air when fan is not operating
Fixed directly to fan case flange
Hot dip galvanised steel
Galvanised steel butterfly type blades
Suitable for...
Flanged Damper 019-0500-STD
£ 583.15
Flanged Damper 019-0500-STD
Prevents reverse flow of air when fan is not operating
Fixed directly to fan case flange
Hot dip galvanised steel
Galvanised steel butterfly type blades
Suitable for...
Flanged Damper 019-0560-STD
£ 602.00
Flanged Damper 019-0560-STD
Prevents reverse flow of air when fan is not operating
Fixed directly to fan case flange
Hot dip galvanised steel
Galvanised steel butterfly type blades
Suitable for...
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 186.32
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Mounted Units...
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JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 456.75
JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans...
RSK355 - Back Draught Shutter
£ 82.95
Back Draught Shutter
for duct
installation
Galvanized sheet steel housing
Aluminium flaps ...
VKS 355-500 Automatic shutter
£ 89.25
VKS Dampers
Automatic shutter
Automatic operation
Robust construction
Seawater resistant
Robust
The VKS is fitted with shutter blades that are manufactured from
seawater-resistant aluminium...
Displaying 1 to 17 (of 17 products)
1 x WS - Reversing Switch from Helios Fans2 x Transformer Speed Control - RTRE- 12.0Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Two Speed Switch - REGUL-22 x Vent Axia T-Series Controller2 x CBS-60 Outlet Flange for CSB/CBT-602 x REE-1 Electronic Speed Controller5 x Transformer (silent) speed controller - RE 3.0 Amp3 x TG-K3/NTC10-01 - Duct temperature sensor1 x Helios HQW-630/4 - IP551 x EC6H - Reversible Group Fan Electronic Controller1 x Remote Timer Control - 13511 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3553 x Helios HQW-200/4 - IP555 x Commercial Single or 3 phase Fan Reversing Switch - RS13 x Airvent ceiling fan controller1 x Transformer (silent) speed controller - RE 1.5 Amp4 x Transformer Speed Control - RTRE- 7.0Amp1 x Elta Wall Cowl SWC56/634 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x CBA-60 Inlet Flange for CBT-603 x Helios HQW-315/4 - IP552 x Speed Controller - REB51 x CBM 9-9 550w 4P VR (Open Motor)5 x Transformer Speed Control - RTRE- 1.5Amp4 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)3 x Elta Variable Speed Drive IP66 - 0.75KW2 x MTS10- extractor fan 3 step switch1 x Elta Wall Cowl SWC35/402 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS3 x Multiflow SMB550/4-1AC1 x GRA-100 External Grill by S&P2 x EBM-Papst D4E225-BC01-17 Double inlet1 x Elta Wall Cowl SWC45/503 x SG-200 Fan Guard for the HQW 2002 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)2 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR2 x Vent Axia ACM 200 inline mixed flow duct fan1 x Elta Wall Cowl SWC25/311 x Elta Louvre Shutter - 400mm5 x REB-CVF 0-10v Controller1 x Transformer (silent) speed controller - RE 5.0 Amp3 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan4 x Transformer 5 Speed Controller - ATC1-2TK2 x REE-2 Electronic Speed Controller6 x MTP 10, 10K, Speed control3 x Elta Variable Speed Drive IP66 - 2.2KW2 x Speed Controller - REB106 x QPTW 250C Acoustic Twin Fan with Controller4 x Vent Axia Silent 100T (TIMER)2 x RDS 11 Helios Transformer Controller With Motor Protection4 x Speed Controller - REB1-N2 x TUNE-R-200-3-M1 - Control Damper2 x FRQ5-10A Inverter Speed controller5 x DDMP 12-12 3F 1810W M6A4 DG01 x Contactor Interface Station - CI92 x EBM-Papst D3G133-BF05-14 Double inlet1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR3 x Helios HQW-250/4 - IP556 x Speed Controller - REB14 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x Jet Cowl - 315mm1 x VTR 300 STD Filter Kit2 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan2 x Silent 100 Window Kit - windowS1 x 7 Day Programmable TIMECLOCK1 x Speed controller with Reverse - REB-1R2 x DDMP 10-08 3F 2210W M6A4 DG03 x PIR Sensor - PIR21 x GXC6EC - High Performance Extract Fan3 x Elta 6 Amp Electronic single phase speed controller.3 x Compact SCD450/4-1AC2 x Helios TSW 1.5 Amp Transformer speed controller2 x MEV Spider Wireless boost Switch - MEV-SWH-W2 x RDH FLEX-SQUARE - ADH/RDH 04502 x Elta 10 Amp Electronic single phase speed controller.3 x CBT-100N Centrifugal1 x ERR 20/1 Centrifugal inline fan1 x Transformer 5 Speed Controller - ATC1-4TK1 x Transformer speed controller - ATC1 - 1.5 Amps1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Transformer Speed Control - RTRE- 5.0Amp1 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR2 x UB47- Universal Insulated Terminal2 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x DEF-140T Inlet Guard for the CBT-100N1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Elta Variable Speed Drive IP66 - 1.5KW1 x Vent Axia SC5001 - Speed controller1 x Helios TSW 7.5 Amp Transformer speed controller1 x VEKA INT 2000/15.0-L1 EKO1 x Remote controller FLEX - for VEKO INT1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)3 x Helios RR-250-C Centrifugal inline fan1 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x Singleflow SSDL315-1EC1 x ELM 18 EX Flexible Cuff for ERM 181 x Electrostatic Precipitator - 1H x 3W1 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x PIR Sensor - PIR42 x MWS 5 – Transformer Controller With Motor Protection Unit2 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x Vortice Quadro Micro 100 I - Standard Version2 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven1 x AIRVENT speed control - AIR4019612 x VTR 500 STD Filter Kit1 x Elta - Room Sensor - Temp/Humid/C021 x Helios ESA-1 Surface mounted Speed Control 1amp1 x ACO8AC/EC AutoChangeover panel1 x DEF-CBM-RE-7 - Protection Guard1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x CBM Low Pressure Centrifugal Fan - CBM 10/8 4 Pole 373watt CVR1 x 100mm Round Connector with Damper1 x TUNE-R-200-3-M4 - Control Damper1 x Duct Termination with Mesh - 355mm1 x KBA- Inlet Mounting 2251 x Single Deflection Grille 400mm with OBD damper1 x Temperature Fan Speed Controller - ATCP4-WMS1 x Silent 300 CZ Design PLUS Extractor Fan1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Skyflow SSR Horizontal Roof Cowl SSR80B2 x CBM 12-12 1100w 6P Three Phase1 x SD-MUB Vibration pad set1 x Potentiometer EGH 01 - for DDMP Fans
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