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 CBS-60 Outlet Flange for CSB/CBT-602 x WS - Reversing Switch from Helios Fans1 x Envirovent G4 Filter - SL-G4/F73 x Transformer Speed Control - RTRE- 12.0Amp2 x EC6H - Reversible Group Fan Electronic Controller2 x Helios HQW-630/4 - IP551 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5004 x Transformer (silent) speed controller - RE 3.0 Amp1 x MWS 1.5 – Transformer Controller With Motor Protection1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6302 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted3 x TG-K3/NTC10-01 - Duct temperature sensor2 x Remote Timer Control - 13512 x REE-1 Electronic Speed Controller2 x Transformer (silent) speed controller - RE 1.5 Amp1 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven2 x Vent Axia T-Series Controller4 x Helios HQW-200/4 - IP552 x Electronic extractor fan speed controller - FSC 1.54 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3553 x Airvent ceiling fan controller2 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS5 x Vent Axia Silent 100T (TIMER)2 x Quietflow SQS400-1ECL - Centrifugal Box Fan4 x MTP 10, 10K, Speed control2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x TG-R room temperature sensor3 x Transformer Speed Control - RTRE- 7.0Amp4 x Transformer 5 Speed Controller - ATC1-2TK1 x CBA-60 Inlet Flange for CBT-602 x TUNE-R-200-3-M1 - Control Damper2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans4 x SG-200 Fan Guard for the HQW 2002 x Speed Controller - REB51 x Helios PU10 Speed Potentiometer (Flush Mounted)2 x Elta Variable Speed Drive IP66 - 0.75KW2 x Multiflow SMB550/4-1AC1 x Elta Wall Cowl SWC56/633 x Helios HQW-315/4 - IP551 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)2 x RDH FLEX-SQUARE - ADH/RDH 04503 x Speed Controller - REB102 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Isolator Switch - EFF-ISO3 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR2 x Vent Axia ACM 200 inline mixed flow duct fan2 x Transformer Speed Control - RTRE- 1.5Amp3 x Skyflow SSR Horizontal Roof Cowl SSR31/35B2 x Transformer (silent) speed controller - RE 5.0 Amp2 x DDMP 12-12 3F 1810W M6A4 DG03 x Elta Variable Speed Drive IP66 - 2.2KW1 x GRA-100 External Grill by S&P2 x MTS10- extractor fan 3 step switch3 x REB-CVF 0-10v Controller1 x TD Mixvent 800/200 EEXEIIT34 x Helios HQW-250/4 - IP551 x Elta Wall Cowl SWC35/402 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR3 x Speed Controller - REB11 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x PIR Sensor - PIR21 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x REE-2 Electronic Speed Controller1 x RDS 11 Helios Transformer Controller With Motor Protection1 x Speed controller with Reverse - REB-1R1 x Elta Louvre Shutter - 400mm1 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan3 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.3 x Elta 6 Amp Electronic single phase speed controller.2 x DDMP 10-08 3F 2210W M6A4 DG02 x CBT-100N Centrifugal1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)2 x Speed Controller - REB1-N1 x Elta Wall Cowl SWC45/502 x MEV Spider Wireless boost Switch - MEV-SWH-W2 x QPTW 250C Acoustic Twin Fan with Controller1 x Elta Wall Cowl SWC25/311 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Transformer speed controller - ATC1 - 1.5 Amps2 x Elta 10 Amp Electronic single phase speed controller.2 x HIMF - Mixed Flow Fan 100mm Inline Fan3 x Helios RR-250-C Centrifugal inline fan1 x VEKA INT 2000/15.0-L1 EKO1 x Quietflow SQS100-1ECL - Centrifugal Box Fan2 x UB47- Universal Insulated Terminal1 x Jet Cowl - 315mm1 x Vent Axia SC5001 - Speed controller1 x Transformer Speed Control - RTRE- 5.0Amp1 x EBM-Papst D3G133-BF05-14 Double inlet1 x Electrostatic Precipitator - 1H x 3W2 x VTR 300 STD Filter Kit1 x SD-MUB Vibration pad set2 x Quietflow Twin SQTDCV250-1ECL3 x PIR Sensor - PIR42 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x WSD 100 (1060x1060x70)2 x Elta - Room Sensor - Temp/Humid/C021 x Biflow SB250-CON4-3 - High Temperature Bifurcated Fan1 x DDMP 10-10 1F 1000W M6A2 DA51 x TG-K Duct temperature sensor1 x TUNE-R-200-3-M4 - Control Damper1 x Run On Timer - 5s - 4hrs - RT5A1 x Helios ESA-1 Surface mounted Speed Control 1amp2 x Contactor Interface Station - CI91 x TUNE-R-200-3-M0 - Control Damper (NO ACTUATOR)1 x Speed Controller - REB81 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x CBM 7/7 147w 4P RE-VR1 x SAVE VSR 300 heat recovery unit1 x Transformer 5 Speed Controller - ATC1-4TK1 x CBM 9-9 550w 4P VR (Open Motor)1 x CBA-100 Inlet Flange for CBT-1001 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x DEF-CBM-RE-7 - Protection Guard1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x Potentiometer EGH 01 - for DDMP Fans
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