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 Isolator Switch - ISOSW1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 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 S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Systemair Save Connect 2.0 Internet Module1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC45/501 x Elta Wall Cowl SWC25/311 x Elta Louvre Shutter - 400mm1 x Jet Cowl - 315mm2 x Helios ZNE Electronic Fan Overrun Timer1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 100 inline mixed flow duct fan3 x Remote Timer Control - 13512 x Vent Axia ACM 125 inline mixed flow duct fan1 x Run On Timer - 5s - 4hrs - RT5A1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Push Timer Switch - ZA41 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK1 x Elta 3 Amp Electronic single phase speed controller with TK1 x TTC-2000 Three phase electric heater controller3 x Transformer (silent) speed controller - RE 3.0 Amp1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Speed Controller - REB52 x Speed Controller - REB11 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x EM30-24 Control Panel Commissioning Service1 x REB-CVF 0-10v Controller1 x PIR Sensor - PIR22 x Contactor Interface Station - CI91 x Multiflow SMB550/4-1AC1 x QPTW 250C Acoustic Twin Fan with Controller2 x PIR Sensor - PIR41 x UB47- Universal Insulated Terminal1 x AIRVENT speed control - AIR4019611 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Transformer 5 Speed Controller - ATC1-2TK1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Transformer 5 Speed Controller - ATC1-4TK1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x TDP-D Pressure Sensor with Display1 x CS2 Current Switch1 x ERR 20/1 Centrifugal inline fan2 x Elta 6 Amp Electronic single phase speed controller with TK1 x TD EVO-100 PF ECOWATT - Environmentally Friendly Energy Efficient Inline Fan1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x CBS-60 Outlet Flange for CSB/CBT-601 x BEAS-control module1 x TG-K3/NTC10-01 - Duct temperature sensor1 x WS - Reversing Switch from Helios Fans2 x TG-R room temperature sensor1 x Transformer (silent) speed controller - RE 5.0 Amp1 x Electronic extractor fan speed controller - FSC 1.51 x Speed Controller - REB1-N1 x MTS10- extractor fan 3 step switch2 x Elta Variable Speed Drive IP66 - 0.75KW2 x VTR 300 STD Filter Kit1 x CBT-100N Centrifugal1 x TD Mixvent 800/200 EEXEIIT31 x Vent Axia Silent 100T (TIMER)1 x Speed Controller - REB2.5-N2 x TG-K Duct temperature sensor1 x Silent 100 Window Kit - windowS1 x Silentub - STUB 1001 x MTP 10, 10K, Speed control2 x SAVE VSR 300 heat recovery unit1 x TD160-NT Mixvent - 100mm - TD160 Timer1 x Singleflow SSDL315-1EC1 x Potentiometer EGH 01 - for DDMP Fans1 x Mini Diffuser - 100mm1 x CBA-100 Inlet Flange for CBT-1001 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x VTR 500 STD Filter Kit1 x Helios RR-250-C Centrifugal inline fan1 x CSB-60 Centrifugal fan
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