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)
2 x RDH FLEX-SQUARE - ADH/RDH 04502 x EC6H - Reversible Group Fan Electronic Controller1 x Transformer (silent) speed controller - RE 1.5 Amp1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.2 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Isolator Switch - EFF-ISO1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Speed Controller - REB105 x SG-200 Fan Guard for the HQW 2002 x MWS 1.5 – Transformer Controller With Motor Protection1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection4 x Helios HQW-200/4 - IP552 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios HQW-630/4 - IP554 x WS - Reversing Switch from Helios Fans1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)2 x REB-CVF 0-10v Controller1 x EM30-24 Control Panel Commissioning Service2 x TUNE-R-200-3-M1 - Control Damper1 x Speed Controller - REB1-N2 x Vent Axia T-Series Controller1 x Airvent ceiling fan controller4 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Transformer Speed Control - RTRE- 7.0Amp3 x Transformer (silent) speed controller - RE 3.0 Amp4 x MTP 10, 10K, Speed control1 x Helios HQW-315/4 - IP551 x Easy-fix termination kit - High Rise Ventilator - EFT2 x Vent Axia Silent 100T (TIMER)1 x Silent 100 Window Kit - windowS1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x TD Mixvent 800/200 EEXEIIT32 x Electronic extractor fan speed controller - FSC 1.52 x Multiflow SMB550/4-1AC1 x Elta Variable Speed Drive IP66 - 0.75KW1 x PIR Sensor - PIR21 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x Helios HQW-250/4 - IP551 x Remote Timer Control - 13511 x REE-1 Electronic Speed Controller1 x CBA-60 Inlet Flange for CBT-601 x CBM 9-9 550w 4P VR (Open Motor)1 x QPTW 250C Acoustic Twin Fan with Controller2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Transformer (silent) speed controller - RE 5.0 Amp1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Transformer Speed Control - RTRE- 1.5Amp1 x UB47- Universal Insulated Terminal1 x Helios TSW 1.5 Amp Transformer speed controller1 x ELM 18 EX Flexible Cuff for ERM 181 x MTS10- extractor fan 3 step switch1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Speed Controller - REB51 x RDS 11 Helios Transformer Controller With Motor Protection1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x Speed controller with Reverse - REB-1R1 x Elta 10 Amp Electronic single phase speed controller.1 x PIR Sensor - PIR41 x DDMP 10-08 3F 2210W M6A4 DG01 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x DDMP 12-12 3F 1810W M6A4 DG01 x Compact SCD450/4-1AC
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Airvent Ceiling Sweep Fan - 36 inch - 444122
£ 59.84
Fitted 2 Of These Excellent Fans in a Community Club to shif...