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 Two Speed Switch - REGUL-21 x MTS10- extractor fan 3 step switch1 x Elta Turboflow-TF - 450mm - Single phase3 x Elta Variable Speed Drive IP66 - 2.2KW1 x FU 075 52 Frequency Inverter (IP20)1 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 Frequency converter RUCK - FU 075 201 x FRQ5-4A V2 Inverter Speed Controller1 x Frequency converter FU 075 14 - IP664 x Elta Variable Speed Drive IP66 - 0.75KW1 x FRQ-10A V2 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 FU 22 25 Frequency Inverter1 x FRQ5-10A Inverter Speed controller1 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 FU 075 04 Frequency Inverter (IP20)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps4 x Electronic extractor fan speed controller - FSC 1.55 x EC6H - Reversible Group Fan Electronic Controller1 x Balance S Diffuser - NO RING - 125mm1 x Elta 2 Amp Electronic single phase speed controller.1 x NKS-D swirl diffuser v-300 x 300mm3 x Elta 3 Amp Electronic single phase speed controller with TK3 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Circular Ceiling Diffuser - TST 1251 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 12amps1 x EFSC-3N- Single Phase Speed Control3 x COM-34 x Elta 6 Amp Electronic single phase speed controller with TK1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1001 x Curved Blade Grille 600x600 (2way blow)1 x ELTA - Single Phase Transformer 4amps1 x JSR 200 Painted RAL50181 x EFSC-6N- Single Phase Speed Control1 x Round ceiling diffuser 400mm1 x Circular Ceiling Diffuser - TST 1601 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 10amps1 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x Run On Timer - 5s - 4hrs - RT5A3 x Push Timer Switch - ZA43 x Remote Timer Control - 13511 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 x 7 Day Programmable TIMECLOCK1 x ACO8AC/EC AutoChangeover panel2 x Vent Axia ACM 100 inline mixed flow duct fan2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans3 x Vent Axia ACM 150 inline mixed flow duct fan2 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Multi Input Run On Timer - 0 - 20min - CFCU4 x Systemair Save Connect 2.0 Internet Module2 x Transformer 5 Speed Controller - ATC1-12TK1 x Helios TSW 0.3Amp Compact Transformer speed controller2 x Helios TSW 3 Amp Transformer speed controller1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Helios TSW 1.5 Amp Transformer speed controller1 x TG-K Duct temperature sensor2 x Isolator Switch - ISOSW4 x MWS 3 – Transformer Controller With Motor Protection2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)4 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x BEAS-control module2 x Helios HQW-200/2 - IP552 x Envirovent 4 Way Remote Control Switch - SWHBKRF-45 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan3 x Remote controller FLEX - for VEKO INT2 x Transformer 5 Speed Controller - ATC1-10TK3 x CS2 Current Switch1 x Transformer 5 Speed Controller - ATC1-4TK5 x Vent Axia ACM 125 inline mixed flow duct fan2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Envirovent G4 Filter - SL-G4/F72 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x TTC-2000 Three phase electric heater controller1 x EM30-24 Electro-Mechanical Control Panel3 x Temperature Fan Speed Controller - ATCP4-WMS2 x Helios TSW 7.5 Amp Transformer speed controller4 x Helios TSW 10 Amp Transformer speed controller4 x Helios TSW MCB Amp Transformer speed controller4 x Helios HQW-630/4 - IP553 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)3 x Multiflow SMB550/4-1AC3 x MWS 1.5 – Transformer Controller With Motor Protection2 x Speed Controller - REB51 x FAST-TRACK RANGE 90mm - Click Ring (1 bag of 10)2 x CBS-60 Outlet Flange for CSB/CBT-601 x Elta ACO Panel 149-ACO18B3 x Helios HQW-200/4 - IP551 x TG-K3/NTC10-01 - Duct temperature sensor1 x Elta ACO Panel 149-ACO14E4 x Vent Axia T-Series Controller3 x Transformer (silent) speed controller - RE 1.5 Amp1 x ACO 149-ACO1/EDV3 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box1 x Speed Controller - REB33 x TG-R room temperature sensor2 x REE-1 Electronic Speed Controller2 x DEF-140T Inlet Guard for the CBT-100N1 x Insulated extract Plenum 8+11 x Insulated extract Plenum 6+15 x Transformer (silent) speed controller - RE 3.0 Amp4 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x WS - Reversing Switch from Helios Fans1 x EM30-24 Control Panel Commissioning Service2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x EC-Vent Room Unit4 x REB-CVF 0-10v Controller1 x ERR 20/1 Centrifugal inline fan2 x SG-200 Fan Guard for the HQW 2004 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x 220x90mm Insulated Rectangular Horizontal 90° Bend2 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection4 x Speed Controller - REB102 x TUNE-R-200-3-M1 - Control Damper1 x Silent 100 Window Kit - windowS4 x PIR Sensor - PIR22 x RDS 11 Helios Transformer Controller With Motor Protection1 x Speed Controller - REB61 x ERR 31/1 Centrifugal inline fan4 x Speed Controller - REB1-N1 x 220x90mm Insulated Rectangular Horizontal 45° Bend1 x Transformer Speed Control - RTRE- 12.0Amp1 x 220x90mm Insulated Rectangular Vertical 45° Bend4 x MTP 10, 10K, Speed control2 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x DDMP 09-09 3F 2130W M6A4 DG02 x Single phase speed controller by auto-transformer - RMB 10.0 Amp2 x Isolator Switch - EFF-ISO1 x 220x90mm Insulated Rectangular Vertical 90° Bend3 x UB47- Universal Insulated Terminal1 x Vent Axia Silent 100T (TIMER)1 x DDMP 12-12 3F 1810W M6A4 DG02 x PIR Sensor - PIR41 x Transformer Speed Control - RTRE- 7.0Amp1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.
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Reviews
Duct Mounted Inline Filter - EU4
£ 44.99
Well made and robust, but it was not use for my application ...