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)
2 x REB-CVF 0-10v Controller1 x Elta Variable Speed Drive IP66 - 7.5KW2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ-10A V2 Inverter Speed controller1 x FU 15 40 Frequency Inverter1 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 075 52 Frequency Inverter (IP20)1 x NKS-D swirl diffuser v-300 x 300mm1 x Circular Ceiling Diffuser - TST 1252 x Elta Variable Speed Drive IP66 - 1.5KW1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter RUCK - FU 075 201 x Elta 10 Amp Electronic single phase speed controller.1 x Frequency converter FU 075 14 - IP661 x FU 22 04 Frequency Inverter1 x FRQ5-10A Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ELTA - Three Phase Transformer 3amps1 x PCA Diffuser - PCA-3151 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 5.5KW1 x FU 15 16 Frequency Inverter1 x FU 075 04 Frequency Inverter (IP20)1 x Circular Ceiling Diffuser - TST 1001 x Frequency converter RUCK - FU 075 211 x Circular Ceiling Diffuser - TST 2001 x Balance S Diffuser - NO RING - 125mm1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x Curved Blade Grille 600x600 (2way blow)1 x Balance S Diffuser - NO RING - 100mm1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1602 x Round ceiling diffuser 200mm2 x Electronic extractor fan speed controller - FSC 1.51 x Round ceiling diffuser 300mm1 x EC6H - Reversible Group Fan Electronic Controller1 x Round ceiling diffuser 350mm1 x Round ceiling diffuser 250mm1 x Elta 6 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.2 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps2 x AIRVENT speed control - AIR4019611 x Airvent ceiling fan controller1 x PCA Diffuser - PCA-2501 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 4amps2 x Remote Timer Control - 13512 x Elta 6 Amp Electronic single phase speed controller.2 x COM-31 x EFSC-6N- Single Phase Speed Control1 x Run On Timer - 5s - 4hrs - RT5A1 x ELTA - Single Phase Transformer 10amps2 x Helios ZNE Electronic Fan Overrun Timer2 x Multi Input Run On Timer - 0 - 20min - CFCU2 x Push Timer Switch - ZA41 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x EC-Vent control board1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x ACO 149-ACO1/EDV1 x EM30-24 Electro-Mechanical Control Panel1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Elta ACO Panel 149-ACO18B1 x Systemair Save Connect 2.0 Internet Module1 x EM30-24 Control Panel Commissioning Service1 x Elta Wall Cowl SWC56/631 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC45/501 x GRA-100 External Grill by S&P1 x Elta Louvre Shutter - 400mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Jet Cowl - 315mm2 x Vent Axia ACM 100 inline mixed flow duct fan1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH2 x Mini Diffuser - 100mm1 x Economy Airvent 100mm Fan with Timer1 x Economy Airvent 150mm Fan With Pullcord & Shutters1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Helios TSW 7.5 Amp Transformer speed controller1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 1.5 Amp Transformer speed controller1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Vent Axia ACM 200 inline mixed flow duct fan1 x Isolator Switch - ISOSW1 x Vent Axia ACM 125 inline mixed flow duct fan1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x TG-K Duct temperature sensor1 x BEAS-control module1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Vent Axia T-Series Controller1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Envirovent G4 Filter - SL-G4/F71 x Transformer (silent) speed controller - RE 3.0 Amp1 x Speed Controller - REB51 x TG-K3/NTC10-01 - Duct temperature sensor1 x Transformer (silent) speed controller - RE 5.0 Amp1 x Speed Controller - REB1-N1 x CBM 9-9 550w 4P VR (Open Motor)1 x Speed Controller - REB11 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x MTS10- extractor fan 3 step switch1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x MTP 10, 10K, Speed control1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x PIR Sensor - PIR21 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x VTR 300 STD Filter Kit1 x CBT-100N Centrifugal1 x Multiflow SMB550/4-1AC1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Speed Controller - REB2.5-N1 x Silentub - STUB 1001 x QPTW 250C Acoustic Twin Fan with Controller1 x VEKA INT 2000/15.0-L1 EKO1 x UB47- Universal Insulated Terminal1 x SAVE VSR 300 heat recovery unit1 x Compact SCD450/4-1AC1 x Elta - Room Sensor - Temp/Humid/C021 x Potentiometer EGH 01 - for DDMP Fans1 x IR24-P - Presence detector1 x EBM-Papst D3G133-BF05-14 Double inlet1 x VTR 500 STD Filter Kit
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