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 DEF-CBM-RE-7 - Protection Guard4 x Elta Variable Speed Drive IP66 - 2.2KW1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 075 52 Frequency Inverter (IP20)1 x FRQ-10A V2 Inverter Speed controller4 x Elta Variable Speed Drive IP66 - 0.75KW1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW2 x FRQ5-10A Inverter Speed controller1 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 ELTA - Three Phase Transformer 10amps1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x FU 075 04 Frequency Inverter (IP20)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Frequency converter RUCK - FU 075 381 x NKS-D swirl diffuser v-300 x 300mm2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 2001 x JSR 200 Painted RAL50181 x Round ceiling diffuser 400mm1 x Circular Ceiling Diffuser - TST 1601 x Versio Square Ceiling Diffusers - RS141 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 300mm1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 350mm3 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps1 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control5 x Elta 6 Amp Electronic single phase speed controller with TK1 x AIRVENT speed control - AIR4019613 x COM-34 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 4amps1 x EFSC-6N- Single Phase Speed Control1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x Run On Timer - 5s - 4hrs - RT5A3 x Remote Timer Control - 13513 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer7 x Vent Axia ACM 125 inline mixed flow duct fan3 x Multi Input Run On Timer - 0 - 20min - CFCU2 x 7 Day Programmable TIMECLOCK1 x Round ceiling diffuser 250mm3 x Isolator Switch - ISOSW3 x Remote controller FLEX - for VEKO INT5 x Vent Axia ACM 150 inline mixed flow duct fan3 x Transformer 5 Speed Controller - ATC1-12TK2 x Three Phase Transformer controllers - RMT 1.5 Amp5 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan5 x Vent Axia ACM 200 inline mixed flow duct fan5 x Vent Axia ACM 100 inline mixed flow duct fan3 x CS2 Current Switch4 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan3 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-8TK2 x Helios TSW 3 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-10TK3 x Helios TSW MCB Amp Transformer speed controller7 x Single phase speed controller by auto-transformer - RMB 1.5 Amp3 x MWS 3 – Transformer Controller With Motor Protection1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Helios TSW 7.5 Amp Transformer speed controller2 x Helios TSW 0.3Amp Compact Transformer speed controller5 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x BEAS-control module3 x Temperature Fan Speed Controller - ATCP4-WMS2 x Systemair Save Connect 2.0 Internet Module3 x Helios TSW 1.5 Amp Transformer speed controller3 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x Helios HQW-200/2 - IP553 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE3 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Envirovent G4 Filter - SL-G4/F74 x MWS 1.5 – Transformer Controller With Motor Protection4 x WS - Reversing Switch from Helios Fans3 x Helios HQW-630/4 - IP555 x Vent Axia T-Series Controller1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6302 x REE-1 Electronic Speed Controller3 x Airvent ceiling fan controller4 x Helios HQW-200/4 - IP556 x Transformer (silent) speed controller - RE 3.0 Amp3 x Speed Controller - REB55 x RRB- transformer controller2 x Transformer (silent) speed controller - RE 1.5 Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5002 x TG-K3/NTC10-01 - Duct temperature sensor3 x Electronic extractor fan speed controller - FSC 1.51 x Easy-fix termination kit - High Rise Ventilator - EFT1 x TG-R room temperature sensor3 x Transformer Speed Control - RTRE- 12.0Amp3 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp4 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x Two Speed Switch - REGUL-22 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Isolator Switch - EFF-ISO3 x REB-CVF 0-10v Controller3 x Speed Controller - REB101 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x DEF-140T Inlet Guard for the CBT-100N1 x CBS-60 Outlet Flange for CSB/CBT-604 x SG-200 Fan Guard for the HQW 2001 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3554 x Transformer 5 Speed Controller - ATC1-2TK1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x KMBI 250 Connector rectangular/circular to install on the discharge of CMT2 x RDH FLEX-SQUARE - ADH/RDH 04501 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven5 x MTP 10, 10K, Speed control1 x RDS 11 Helios Transformer Controller With Motor Protection4 x Transformer speed controller - ATC1 - 1.5 Amps1 x Helios PU10 Speed Potentiometer (Flush Mounted)2 x TUNE-R-200-3-M1 - Control Damper3 x Skyflow SSR Horizontal Roof Cowl SSR31/35B4 x Speed Controller - REB1-N1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x RDS 7 Helios Transformer Controller With Motor Protection1 x ELM 18 EX Flexible Cuff for ERM 184 x PIR Sensor - PIR22 x Transformer Speed Control - RTRE- 7.0Amp4 x Helios HQW-315/4 - IP551 x Elta Wall Cowl SWC56/631 x Silent 100 Window Kit - windowS5 x Vent Axia Silent 100T (TIMER)2 x Elta 3 Amp Electronic single phase speed controller with TK2 x DDMP 12-12 3F 1810W M6A4 DG03 x Helios HQW-250/4 - IP553 x PIR Sensor - PIR41 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x REE-2 Electronic Speed Controller2 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)2 x Speed Controller - REB81 x GRA-100 External Grill by S&P2 x TD Mixvent 800/200 EEXEIIT33 x QPTW 250C Acoustic Twin Fan with Controller2 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Elta Louvre Shutter - 400mm2 x CBM 9-9 550w 4P VR (Open Motor)2 x UB47- Universal Insulated Terminal1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC35/401 x MTS10- extractor fan 3 step switch3 x Speed Controller - REB12 x Transformer Speed Control - RTRE- 1.5Amp1 x TG-K Duct temperature sensor1 x Mini Diffuser - 100mm1 x CBA-60 Inlet Flange for CBT-601 x Elta - Room Sensor - Temp/Humid/C021 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR
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Reviews
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29
Unbelievable! With TDmixvent500: noise reduction minimum 50%...