Non Return Valves & Shutters
Non Return Shutters
Displaying 1 to 16 (of 16 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...
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 186.32
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Mounted Units...
.jpg "JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans")
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 16 (of 16 products)
3 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 15 40 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP664 x Elta Variable Speed Drive IP66 - 0.75KW3 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW3 x Elta Variable Speed Drive IP66 - 1.5KW1 x ELTA - Three Phase Transformer 3amps1 x ELTA - Three Phase Transformer 10amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)2 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x NKS-D swirl diffuser v-300 x 300mm1 x Circular Ceiling Diffuser - TST 1251 x ELTA - Single Phase Transformer 2amps2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Circular Ceiling Diffuser - TST 1001 x Balance S Diffuser - NO RING - 125mm1 x PCA Diffuser - PCA-3154 x Electronic extractor fan speed controller - FSC 1.51 x Circular Ceiling Diffuser - TST 2004 x EC6H - Reversible Group Fan Electronic Controller1 x Curved Blade Grille 600x600 (2way blow)1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x Elta 2 Amp Electronic single phase speed controller.1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Circular Ceiling Diffuser - TST 1601 x ELTA - Single Phase Transformer 16amps1 x Balance S Diffuser - NO RING - 100mm1 x EFSC-3N- Single Phase Speed Control4 x Elta 3 Amp Electronic single phase speed controller with TK3 x Airvent ceiling fan controller2 x 7 Day Programmable TIMECLOCK1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps5 x Elta 6 Amp Electronic single phase speed controller with TK5 x Helios TSW MCB Amp Transformer speed controller1 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 4amps2 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 250mm3 x COM-33 x Elta 6 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 350mm1 x EFSC-6N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 10amps3 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A3 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x TTC-2000 Three phase electric heater controller1 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 EM30-24 Electro-Mechanical Control Panel6 x Helios HQW-630/4 - IP551 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection3 x Systemair Save Connect 2.0 Internet Module1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EM30-24 Control Panel Commissioning Service1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3553 x REB-CVF 0-10v Controller1 x Elta Wall Cowl SWC56/633 x Vent Axia ACM 150 inline mixed flow duct fan1 x PCA Diffuser - PCA-2501 x Envirovent G4 Filter - SL-G4/F73 x Vent Axia T-Series Controller1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Speed Controller - REB51 x Quietflow SQS400-1ECL - Centrifugal Box Fan3 x Speed Controller - REB1-N3 x MTS10- extractor fan 3 step switch3 x PIR Sensor - PIR24 x Speed Controller - REB11 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC35/401 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC45/504 x Speed Controller - REB102 x UB47- Universal Insulated Terminal3 x PIR Sensor - PIR41 x Envirovent 4 Way Remote Control Switch - SWHBKRF-43 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan3 x Remote controller FLEX - for VEKO INT2 x Helios TSW 7.5 Amp Transformer speed controller3 x Transformer 5 Speed Controller - ATC1-12TK3 x Vent Axia ACM 200 inline mixed flow duct fan2 x Three Phase Transformer controllers - RMT 1.5 Amp5 x Vent Axia ACM 125 inline mixed flow duct fan2 x CS2 Current Switch2 x MWS 3 – Transformer Controller With Motor Protection2 x TG-K Duct temperature sensor4 x WS - Reversing Switch from Helios Fans2 x Helios HQW-200/2 - IP552 x Two Speed Switch - REGUL-21 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT3 x Transformer Speed Control - RTRE- 12.0Amp5 x Transformer (silent) speed controller - RE 3.0 Amp2 x TG-K3/NTC10-01 - Duct temperature sensor1 x Helios HQW-200/4 - IP553 x Commercial Single or 3 phase Fan Reversing Switch - RS13 x Helios HQW-315/4 - IP553 x TG-R room temperature sensor2 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)4 x MTP 10, 10K, Speed control5 x QPTW 250C Acoustic Twin Fan with Controller1 x DEF-CBM-RE-7 - Protection Guard1 x Helios HQW-250/4 - IP551 x TG-K Duct temperature sensor1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7103 x Transformer 5 Speed Controller - ATC1-4TK2 x Helios TSW 0.3Amp Compact Transformer speed controller4 x Helios TSW 10 Amp Transformer speed controller1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)3 x Isolator Switch - ISOSW4 x MWS 1.5 – Transformer Controller With Motor Protection1 x CBS-60 Outlet Flange for CSB/CBT-603 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Transformer (silent) speed controller - RE 5.0 Amp1 x Isolator Switch - EFF-ISO4 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR2 x SG-200 Fan Guard for the HQW 2001 x TD Mixvent 800/200 EEXEIIT32 x Silent 100 Window Kit - windowS2 x DDMP 12-12 3F 1810W M6A4 DG01 x CBT-100N Centrifugal1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Jet Cowl - 315mm2 x Helios TSW 1.5 Amp Transformer speed controller1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3002 x VTR 300 STD Filter Kit1 x SAVE VSR 300 heat recovery unit2 x Transformer 5 Speed Controller - ATC1-8TK2 x MV-B Dual Switch for use with Helios HQW plate fans,3 x Single phase speed controller by auto-transformer - RMB 1.5 Amp3 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS3 x Transformer Speed Control - RTRE- 1.5Amp2 x ENV 100 12v transformer SELV3 x Temperature Fan Speed Controller - ATCP4-WMS1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost2 x Helios TSW 3 Amp Transformer speed controller1 x RDS 11 Helios Transformer Controller With Motor Protection2 x Vent Axia ACM 100 inline mixed flow duct fan2 x DEF-140T Inlet Guard for the CBT-100N1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Vent Axia SC5001 - Speed controller1 x BEAS-control module2 x Skyflow SSR Horizontal Roof Cowl SSR31/35B3 x Transformer Speed Control - RTRE- 7.0Amp1 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x CBA-60 Inlet Flange for CBT-601 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Multiflow SMB550/4-1AC1 x Vent Axia Silent 100T (TIMER)1 x Transformer Speed Control - RTRE- 5.0Amp2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Vent Axia T-Series Wall Model TX9WL1 x Speed Controller - REB81 x GXC6EC - High Performance Extract Fan1 x Speed Controller - REB2.5-N2 x Elta - Room Sensor - Temp/Humid/C021 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR2 x Compact SCD450/4-1AC2 x Mini Diffuser - 100mm2 x DDMP 10-08 3F 2210W M6A4 DG01 x EBM-Papst D3G133-BF05-14 Double inlet1 x Transformer 5 Speed Controller - ATC1-2TK1 x VEKA INT 2000/15.0-L1 EKO1 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x RDS 7 Helios Transformer Controller With Motor Protection1 x RTRD - Three Phase Speed Controller - 14 Amp1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x ERR 20/1 Centrifugal inline fan1 x CBM 9-9 550w 4P VR (Open Motor)1 x Transformer speed controller - ATC1 - 1.5 Amps1 x ELM 18 EX Flexible Cuff for ERM 181 x KKS 100 silencer-section - For use with the MUB 100 size Fans.
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