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)
1 x 110 x 54mm Flat Channel Connector3 x Elta Variable Speed Drive IP66 - 2.2KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP663 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter3 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Three Phase Transformer 10amps1 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)2 x FRQ5-10A Inverter Speed controller1 x ELTA - Single Phase Transformer 2amps3 x Electronic extractor fan speed controller - FSC 1.52 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 2 Amp Electronic single phase speed controller.1 x Elta 6 Amp Electronic single phase speed controller with TK3 x Airvent ceiling fan controller1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 8amps1 x ELTA - Single Phase Transformer 16amps2 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 12amps1 x Elta 3 Amp Electronic single phase speed controller.4 x COM-31 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x EFSC-6N- Single Phase Speed Control1 x Helios TSW MCB Amp Transformer speed controller1 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps1 x Helios TSW 1.5 Amp Transformer speed controller1 x Helios TSW 10 Amp Transformer speed controller3 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A3 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 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 EC-Vent control board1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x ACO 149-ACO1/EDV1 x Elta ACO Panel 149-ACO18B1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x EC-Vent Room Unit2 x Systemair Save Connect 2.0 Internet Module1 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 - EFT3 x Remote controller FLEX - for VEKO INT5 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Helios TSW 3 Amp Transformer speed controller2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan3 x Vent Axia ACM 125 inline mixed flow duct fan1 x DEF-140T Inlet Guard for the CBT-100N2 x Isolator Switch - ISOSW1 x Helios TSW 0.3Amp Compact Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-8TK1 x Vent Axia ACM 200 inline mixed flow duct fan2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x TG-K Duct temperature sensor2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x BEAS-control module1 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box4 x WS - Reversing Switch from Helios Fans3 x MWS 1.5 – Transformer Controller With Motor Protection1 x Helios HQW-200/2 - IP552 x Envirovent G4 Filter - SL-G4/F72 x Vent Axia T-Series Controller1 x ERR 31/1 Centrifugal inline fan1 x Helios HQW-630/4 - IP556 x Transformer (silent) speed controller - RE 3.0 Amp1 x CBS-60 Outlet Flange for CSB/CBT-602 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Helios HQW-200/4 - IP552 x Envirovent 4 Way Remote Control Switch - SWHBKRF-42 x Three Phase Transformer controllers - RMT 1.5 Amp1 x CS2 Current Switch2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x REE-1 Electronic Speed Controller2 x Transformer Speed Control - RTRE- 12.0Amp1 x Speed Controller - REB31 x Transformer (silent) speed controller - RE 1.5 Amp2 x TG-R room temperature sensor2 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x Speed Controller - REB52 x Temperature Fan Speed Controller - ATCP4-WMS2 x Transformer 5 Speed Controller - ATC1-10TK1 x Helios TSW 7.5 Amp Transformer speed controller1 x TG-K3/NTC10-01 - Duct temperature sensor2 x Multiflow SMB550/4-1AC2 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)3 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x Isolator Switch - EFF-ISO1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3552 x Speed Controller - REB103 x REB-CVF 0-10v Controller1 x Quietflow SQS400-1ECL - Centrifugal Box Fan2 x Transformer Speed Control - RTRE- 7.0Amp3 x Helios HQW-315/4 - IP553 x MTP 10, 10K, Speed control3 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Transformer 5 Speed Controller - ATC1-2TK2 x Transformer 5 Speed Controller - ATC1-4TK2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)2 x SG-200 Fan Guard for the HQW 2001 x Speed Controller - REB1-N3 x PIR Sensor - PIR21 x CBM 9-9 550w 4P VR (Open Motor)1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer speed controller - ATC1 - 1.5 Amps1 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven2 x Transformer (silent) speed controller - RE 5.0 Amp2 x Silent 100 Window Kit - windowS2 x Transformer Speed Control - RTRE- 1.5Amp1 x CBA-60 Inlet Flange for CBT-601 x GRA-100 External Grill by S&P1 x MTS10- extractor fan 3 step switch2 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Elta Louvre Shutter - 400mm1 x RDS 7 Helios Transformer Controller With Motor Protection1 x DDMP 09-09 3F 2130W M6A4 DG01 x DDMP 12-12 3F 1810W M6A4 DG03 x Helios HQW-250/4 - IP551 x Elta Wall Cowl SWC35/401 x Vent Axia Silent 100T (TIMER)1 x Speed controller with Reverse - REB-1R2 x MWS 3 – Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Elta Wall Cowl SWC25/311 x PIR Sensor - PIR41 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x ELM 18 EX Flexible Cuff for ERM 181 x Elta Wall Cowl SWC45/501 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x ELM 25 EX Flexible Cuff for ERM 252 x QPTW 250C Acoustic Twin Fan with Controller2 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x TD Mixvent 800/200 EEXEIIT31 x Speed Controller - REB11 x Speed Controller - REB81 x DEF-CBM-RE-7 - Protection Guard
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Vectaire Elegance Low Energy DMEV Fan Range
£ 131.69
I've had 2 of these fans for 4 years now, and they are great...