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 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 Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter2 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x ELTA - Three Phase Transformer 10amps1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)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 Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1251 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1001 x PCA Diffuser - PCA-3152 x Electronic extractor fan speed controller - FSC 1.51 x Round ceiling diffuser 400mm1 x EC6H - Reversible Group Fan Electronic Controller1 x Curved Blade Grille 600x600 (2way blow)1 x Elta 2 Amp Electronic single phase speed controller.1 x Circular Ceiling Diffuser - TST 1601 x JSR 200 Painted RAL50181 x Elta 3 Amp Electronic single phase speed controller with TK1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Elta 3 Amp Electronic single phase speed controller.1 x Balance S Diffuser - NO RING - 100mm1 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 8amps1 x EFSC-3N- Single Phase Speed Control1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 12amps2 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 4amps2 x COM-32 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x PCA Diffuser - PCA-2501 x EFSC-6N- Single Phase Speed Control2 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps2 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A2 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Transformer 5 Speed Controller - ATC1-12TK1 x RTRD - Three Phase Speed Controller - 2 Amp1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Circular Ceiling Diffuser - TST 2001 x Isolator Switch - ISOSW1 x BEAS-control module1 x Envirovent G4 Filter - SL-G4/F71 x Vent Axia T-Series Controller1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Speed Controller - REB51 x Transformer (silent) speed controller - RE 3.0 Amp1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Multiflow SMB550/4-1AC1 x Speed Controller - REB1-N1 x TTC-2000 Three phase electric heater controller1 x REB-CVF 0-10v Controller1 x ACOAS/ AC/EC Auto Changeover 8Amp2 x ACO8AC/EC AutoChangeover panel1 x MTP 10, 10K, Speed control1 x PIR Sensor - PIR21 x Speed Controller - REB11 x Elta ACO Panel 149-ACO14E1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x PIR Sensor - PIR41 x CONTROL ECOWATT - Basic1 x Vent Axia Silent 100T (TIMER)1 x Transformer Speed Control - RTRE- 1.5Amp1 x EM30-24 Electro-Mechanical Control Panel1 x MTS10- extractor fan 3 step switch1 x ACO 149-ACO1/EDV1 x UB47- Universal Insulated Terminal1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x Mini Diffuser - 100mm1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Systemair Save Connect 2.0 Internet Module1 x QPTW 250C Acoustic Twin Fan with Controller1 x FRQ5-10A Inverter Speed controller1 x EM30-24 Control Panel Commissioning Service1 x CBT-100N Centrifugal1 x Contactor Interface Station - CI91 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Silentub - STUB 1001 x Elta Wall Cowl SWC56/631 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x CO2 Room Sensor - CO2-R1 x GRA-100 External Grill by S&P1 x VEKA INT 2000/15.0-L1 EKO1 x AXC TP - 100mm Plastic Centrifugal Inline Fan1 x Elta Wall Cowl SWC35/401 x Duct Termination with Mesh - 100mm1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC45/50
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