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)
6 x Remote controller FLEX - for VEKO INT4 x Helios TSW 7.5 Amp Transformer speed controller4 x Remote Timer Control - 13514 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 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- 3551 x Elta Variable Speed Drive IP66 - 7.5KW2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter3 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 075 52 Frequency Inverter (IP20)1 x Elta Variable Speed Drive IP66 - 1.5KW1 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 10 Amp Electronic single phase speed controller.1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 381 x NKS-D swirl diffuser v-300 x 300mm3 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1001 x ELTA - Single Phase Transformer 2amps1 x Balance S Diffuser - NO RING - 125mm7 x Electronic extractor fan speed controller - FSC 1.51 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50183 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 1601 x Versio Square Ceiling Diffusers - RS141 x Elta 2 Amp Electronic single phase speed controller.1 x Balance S Diffuser - NO RING - 100mm7 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x EFSC-3N- Single Phase Speed Control1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 8amps3 x Helios TSW MCB Amp Transformer speed controller1 x Round ceiling diffuser 300mm4 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 250mm1 x ELTA - Single Phase Transformer 12amps3 x COM-31 x Round ceiling diffuser 350mm3 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x EFSC-6N- Single Phase Speed Control1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x PCA Diffuser - PCA-2501 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 10amps1 x Run On Timer - 5s - 4hrs - RT5A1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted3 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan6 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x FRQ-10A V2 Inverter Speed controller2 x FU 22 25 Frequency Inverter2 x Frequency converter FU 075 14 - IP662 x Frequency converter RUCK - FU 075 202 x Elta Variable Speed Drive IP66 - 4.0KW2 x Elta Variable Speed Drive IP66 - 5.5KW2 x Vent Axia ACM 150 inline mixed flow duct fan4 x Single phase speed controller by auto-transformer - RMB 1.5 Amp3 x REB-CVF 0-10v Controller4 x Speed Controller - REB53 x Transformer 5 Speed Controller - ATC1-4TK3 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x Isolator Switch - ISOSW3 x MWS 3 – Transformer Controller With Motor Protection2 x WS - Reversing Switch from Helios Fans3 x Helios HQW-200/2 - IP552 x Envirovent G4 Filter - SL-G4/F73 x Vent Axia T-Series Controller2 x BEAS-control module2 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS4 x Transformer (silent) speed controller - RE 3.0 Amp2 x Speed Controller - REB1-N2 x TG-R room temperature sensor1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan3 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Transformer 5 Speed Controller - ATC1-8TK3 x Transformer 5 Speed Controller - ATC1-12TK3 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Transformer 5 Speed Controller - ATC1-10TK1 x Vent Axia ACM 200 inline mixed flow duct fan4 x Vent Axia ACM 100 inline mixed flow duct fan5 x Vent Axia ACM 125 inline mixed flow duct fan3 x CS2 Current Switch1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT3 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x DDMP 12-12 3F 1810W M6A4 DG04 x Helios HQW-630/4 - IP551 x Transformer Speed Control - RTRE- 12.0Amp2 x Two Speed Switch - REGUL-22 x Helios HQW-315/4 - IP552 x Envirovent 4 Way Remote Control Switch - SWHBKRF-43 x Helios TSW 3 Amp Transformer speed controller1 x DEF-140T Inlet Guard for the CBT-100N2 x TG-K3/NTC10-01 - Duct temperature sensor1 x CBS-60 Outlet Flange for CSB/CBT-604 x Helios HQW-200/4 - IP553 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven3 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x CBA-60 Inlet Flange for CBT-602 x MTP 10, 10K, Speed control2 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)2 x Temperature Fan Speed Controller - ATCP4-WMS2 x Helios TSW 0.3Amp Compact Transformer speed controller2 x Systemair Save Connect 2.0 Internet Module2 x RRB- transformer controller3 x MWS 1.5 – Transformer Controller With Motor Protection2 x Speed Controller - REB102 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x MTS10- extractor fan 3 step switch2 x MV-B Dual Switch for use with Helios HQW plate fans,2 x Helios TSW 1.5 Amp Transformer speed controller2 x REE-1 Electronic Speed Controller1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x Transformer Speed Control - RTRE- 1.5Amp2 x CBM 9-9 550w 4P VR (Open Motor)1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x ERR 20/1 Centrifugal inline fan2 x Transformer (silent) speed controller - RE 1.5 Amp2 x Quietflow SQS400-1ECL - Centrifugal Box Fan2 x Helios HQW-400/4 - IP552 x Vent Axia Silent 100T (TIMER)1 x Transformer 5 Speed Controller - ATC1-2TK1 x REE-2 Electronic Speed Controller1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x Silent 100 Window Kit - windowS3 x QPTW 250C Acoustic Twin Fan with Controller1 x Helios HQW-250/4 - IP551 x Speed Controller - REB11 x SG-200 Fan Guard for the HQW 2001 x DEF-CBM-RE-7 - Protection Guard1 x GRA-100 External Grill by S&P1 x Transformer Speed Control - RTRE- 7.0Amp1 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC45/501 x FU 15 16 Frequency Inverter1 x Speed Controller - REB81 x Elta 6 Amp Electronic single phase speed controller.2 x PIR Sensor - PIR21 x EBM-Papst D4E225-BC01-17 Double inlet1 x Speed controller with Reverse - REB-1R
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