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 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 FU 15 40 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x FRQ-10A V2 Inverter Speed controller1 x FU 22 25 Frequency Inverter1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 16 Frequency Inverter1 x FRQ5-10A Inverter Speed controller1 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 075 04 Frequency Inverter (IP20)1 x ELTA - Three Phase Transformer 10amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x ELTA - Three Phase Transformer 3amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 212 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A1 x Transformer speed controller - ATC1 - 1.5 Amps1 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B2 x 7 Day Programmable TIMECLOCK1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps2 x Electronic extractor fan speed controller - FSC 1.51 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 2 Amp Electronic single phase speed controller.1 x Elta 6 Amp Electronic single phase speed controller with TK1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 12amps1 x Elta 3 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x COM-31 x EFSC-6N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller.1 x Helios TSW 1.5 Amp Transformer speed controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x TTC-2000 Three phase electric heater controller1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 x Systemair Save Connect 2.0 Internet Module1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x EM30-24 Control Panel Commissioning Service1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Helios TSD 5.5 Transformer Speed Control (400v)1 x Helios VDS-7 Three Phase Transformer 5-Step1 x Helios TSW 7.5 Amp Transformer speed controller1 x Versio Square Ceiling Diffusers - RS141 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x ERR 31/1 Centrifugal inline fan1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x Speed Controller - REB31 x Isolator Switch - ISOSW1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Helios HQW-200/4 - IP551 x Speed Controller - REB51 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x RTRD - Three Phase Speed Controller - 2 Amp1 x Helios TSW 3 Amp Transformer speed controller1 x Vent Axia ACM 100 inline mixed flow duct fan1 x RDS 11 Helios Transformer Controller With Motor Protection1 x RDS 7 Helios Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x MWS 3 – Transformer Controller With Motor Protection1 x Helios HQW-200/2 - IP551 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Vent Axia T-Series Controller1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Transformer (silent) speed controller - RE 5.0 Amp1 x 220x90mm Insulated Rectangular Horizontal 90° Bend1 x Vent Axia Silent 100T (TIMER)
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Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29
Unbelievable! With TDmixvent500: noise reduction minimum 50%...