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 Flat Roof Terminal -OFT 5 - Asphalt1 x TechSeal 100FR Duct Sealant Cartridge - 100FRS1 x Spiral Ducting 3 Meters - 160mm1 x Female Ducting Connector - 160mm1 x Duct Tape - Silver - DTape1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 7.5KW1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 5.5KW1 x PCA Diffuser - PCA-3151 x Elta Variable Speed Drive IP66 - 1.5KW1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter RUCK - FU 075 201 x Circular Ceiling Diffuser - TST 1251 x Elta Variable Speed Drive IP66 - 0.75KW1 x Frequency converter FU 075 14 - IP661 x FU 075 52 Frequency Inverter (IP20)1 x NKS-D swirl diffuser v-300 x 300mm1 x FU 15 40 Frequency Inverter1 x FU 22 25 Frequency Inverter1 x FU 075 04 Frequency Inverter (IP20)1 x Round ceiling diffuser 400mm1 x Frequency converter RUCK - FU 075 211 x FRQ5-10A Inverter Speed controller1 x FU 22 04 Frequency Inverter1 x Circular Ceiling Diffuser - TST 1001 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ELTA - Three Phase Transformer 3amps1 x Circular Ceiling Diffuser - TST 2001 x Balance S Diffuser - NO RING - 100mm1 x Circular Ceiling Diffuser - TST 1601 x Curved Blade Grille 600x600 (2way blow)1 x Balance S Diffuser - NO RING - 125mm1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 350mm1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 300mm1 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A1 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B1 x Push Timer Switch - ZA41 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x 7 Day Programmable TIMECLOCK1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x TTC-2000 Three phase electric heater controller1 x EC-Vent control board1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 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 EC-Vent Room Unit1 x Systemair Save Connect 2.0 Internet Module1 x MTS10- extractor fan 3 step switch1 x EM30-24 Control Panel Commissioning Service1 x REB-CVF 0-10v Controller
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