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 Elta Variable Speed Drive IP66 - 7.5KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter1 x FRQ5-4A V2 Inverter Speed Controller5 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)2 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 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 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 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)3 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Three Phase Transformer 10amps1 x ELTA - Three Phase Transformer 3amps1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 2amps3 x Electronic extractor fan speed controller - FSC 1.51 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1251 x Circular Ceiling Diffuser - TST 1001 x PCA Diffuser - PCA-3154 x EC6H - Reversible Group Fan Electronic Controller1 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 2001 x JSR 200 Painted RAL50181 x Elta 2 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 400mm3 x Airvent ceiling fan controller1 x Circular Ceiling Diffuser - TST 1603 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller.5 x Elta 6 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 8amps1 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 4amps1 x Round ceiling diffuser 200mm3 x COM-31 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 300mm4 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x EFSC-6N- Single Phase Speed Control1 x PCA Diffuser - PCA-2501 x Elta 6 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x ELTA - Single Phase Transformer 10amps1 x TTC-2000 Three phase electric heater controller1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel1 x Elta ACO Panel 149-ACO18B1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6303 x Systemair Save Connect 2.0 Internet Module1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3552 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans3 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Run On Timer - 5s - 4hrs - RT5A2 x Remote Timer Control - 13513 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer4 x Multi Input Run On Timer - 0 - 20min - CFCU2 x 7 Day Programmable TIMECLOCK2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x REB-CVF 0-10v Controller3 x Envirovent 4 Way Remote Control Switch - SWHBKRF-46 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan3 x Remote controller FLEX - for VEKO INT2 x Transformer 5 Speed Controller - ATC1-10TK5 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-8TK4 x Helios TSW 3 Amp Transformer speed controller6 x Vent Axia ACM 125 inline mixed flow duct fan2 x CS2 Current Switch3 x MWS 3 – Transformer Controller With Motor Protection2 x BEAS-control module2 x Helios HQW-200/2 - IP552 x Envirovent G4 Filter - SL-G4/F71 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp4 x WS - Reversing Switch from Helios Fans1 x Elta ACO Panel 149-ACO14E4 x Helios TSW MCB Amp Transformer speed controller5 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan3 x Temperature Fan Speed Controller - ATCP4-WMS3 x Helios TSW 7.5 Amp Transformer speed controller2 x Helios TSW 0.3Amp Compact Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-12TK1 x Vent Axia ACM 150 inline mixed flow duct fan4 x Helios TSW 1.5 Amp Transformer speed controller2 x Vent Axia ACM 200 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan3 x Isolator Switch - ISOSW2 x TG-K Duct temperature sensor6 x Single phase speed controller by auto-transformer - RMB 1.5 Amp5 x MWS 1.5 – Transformer Controller With Motor Protection2 x Two Speed Switch - REGUL-22 x TG-K3/NTC10-01 - Duct temperature sensor2 x CBS-60 Outlet Flange for CSB/CBT-601 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted3 x TG-R room temperature sensor3 x Speed Controller - REB52 x Quietflow SQS400-1ECL - Centrifugal Box Fan3 x SG-200 Fan Guard for the HQW 2004 x MTP 10, 10K, Speed control2 x Helios PU10 Speed Potentiometer (Flush Mounted)3 x Transformer Speed Control - RTRE- 12.0Amp4 x Helios HQW-315/4 - IP553 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x RDS 11 Helios Transformer Controller With Motor Protection2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x REE-1 Electronic Speed Controller6 x Transformer (silent) speed controller - RE 3.0 Amp1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp5 x Helios HQW-200/4 - IP552 x Helios HQW-630/4 - IP552 x Multiflow SMB550/4-1AC2 x MV-B Dual Switch for use with Helios HQW plate fans,3 x Transformer speed controller - ATC1 - 1.5 Amps1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven2 x Transformer (silent) speed controller - RE 1.5 Amp4 x Speed Controller - REB102 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)2 x Isolator Switch - EFF-ISO4 x PIR Sensor - PIR24 x Transformer 5 Speed Controller - ATC1-2TK1 x ERR 20/1 Centrifugal inline fan2 x Vent Axia T-Series Controller2 x Transformer (silent) speed controller - RE 5.0 Amp1 x Silent 100 Window Kit - windowS4 x Vent Axia Silent 100T (TIMER)1 x ERR 31/1 Centrifugal inline fan4 x Speed Controller - REB1-N4 x Transformer Speed Control - RTRE- 7.0Amp1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.3 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x ELM 18 EX Flexible Cuff for ERM 182 x TD Mixvent 800/200 EEXEIIT32 x TUNE-R-200-3-M1 - Control Damper2 x Transformer Speed Control - RTRE- 1.5Amp1 x MEV Spider Wireless boost Switch - MEV-SWH-W2 x MTS10- extractor fan 3 step switch3 x DDMP 12-12 3F 1810W M6A4 DG03 x Speed Controller - REB12 x UB47- Universal Insulated Terminal2 x Speed Controller - REB81 x GRA-100 External Grill by S&P1 x Speed controller with Reverse - REB-1R1 x Elta Wall Cowl SWC56/631 x CBM 9-9 550w 4P VR (Open Motor)2 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)3 x Helios HQW-250/4 - IP551 x RDS 7 Helios Transformer Controller With Motor Protection2 x PIR Sensor - PIR42 x QPTW 250C Acoustic Twin Fan with Controller1 x Elta Louvre Shutter - 400mm2 x TG-K Duct temperature sensor1 x Three Phase 3 step - 10amp Transformer controller for use with the HV Wall Mounted fans.2 x DEF-140T Inlet Guard for the CBT-100N2 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven1 x CBA-60 Inlet Flange for CBT-601 x Elta Wall Cowl SWC25/311 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost
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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...