• Model:SLU-300

Circular Inline Silencers - 0.3M long - SLU-300

£ 38.85 (excl. VAT)

£ 46.62 (inc. VAT)

Inline Circular Attenuators in standard diameters from 100mm to 400mm diameter. Attenuators are available in standard 300mm, 600mm, 900mm and 1200mm lengths.
This version is 300mm long
The longer the unit, the more effective it is.

Attenuator construction for this range comprises a pre-galvanised sheet steel spiral wound outer casing, manufactured in accordance with HVCA DW144 specification, with circular spigoted end caps. The inner bore is manufactured from pre-galvanised and perforated spiral wound steel tube, retaining a 50mm thick scrim faced 45 kg/cu.m acoustic media.

This range of circular attenuators offer minimal resistance to airflow and can be used in a variety of noise control applications:-
• Small fan system attenuation
• Cross-talk attenuation
• System noise regeneration attenuation
• System terminal unit attenuation

PDF Files


Silencer Range


Range Spec sheet

Available Options

1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 7.5KW3 x Elta Variable Speed Drive IP66 - 2.2KW3 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter1 x Helios VDS-7 Three Phase Transformer 5-Step1 x FRQ5-4A V2 Inverter Speed Controller1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter1 x FRQ-10A V2 Inverter Speed controller1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW2 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 203 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 3amps1 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x Elta 10 Amp Electronic single phase speed controller.1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1254 x Electronic extractor fan speed controller - FSC 1.51 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1001 x Balance S Diffuser - NO RING - 125mm1 x JSR 200 Painted RAL50181 x Curved Blade Grille 600x600 (2way blow)2 x EC6H - Reversible Group Fan Electronic Controller1 x Round ceiling diffuser 400mm1 x EFSC-3N- Single Phase Speed Control2 x Elta 3 Amp Electronic single phase speed controller with TK1 x Versio Square Ceiling Diffusers - RS141 x Elta 2 Amp Electronic single phase speed controller.1 x Circular Ceiling Diffuser - TST 1601 x ELTA - Single Phase Transformer 12amps2 x Round ceiling diffuser 200mm1 x Airvent ceiling fan controller1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps2 x Balance S Diffuser - NO RING - 100mm4 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps3 x COM-31 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)4 x Elta 6 Amp Electronic single phase speed controller.1 x EFSC-6N- Single Phase Speed Control2 x Round ceiling diffuser 250mm1 x PCA Diffuser - PCA-2501 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 10amps3 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A3 x Push Timer Switch - ZA42 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp3 x ACO8AC/EC AutoChangeover panel1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x ACO 149-ACO1/EDV1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection2 x Systemair Save Connect 2.0 Internet Module1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC35/401 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC45/501 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Jet Cowl - 315mm2 x REB-CVF 0-10v Controller1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Single Deflection Grille 400mm with OBD damper1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH3 x Mini Diffuser - 100mm1 x Speed Controller - REB161 x Egg Crate Grille with Dust panel filter 1 inch- 300x3003 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Isolator Switch - ISOSW1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan3 x Remote controller FLEX - for VEKO INT2 x Helios TSW 7.5 Amp Transformer speed controller3 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-12TK2 x Vent Axia ACM 100 inline mixed flow duct fan1 x Vent Axia ACM 200 inline mixed flow duct fan3 x Vent Axia ACM 125 inline mixed flow duct fan1 x TG-K Duct temperature sensor1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Envirovent G4 Filter - SL-G4/F72 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted6 x Transformer (silent) speed controller - RE 3.0 Amp2 x Transformer (silent) speed controller - RE 1.5 Amp1 x Quietflow SQS400-1ECL - Centrifugal Box Fan2 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)2 x Transformer (silent) speed controller - RE 5.0 Amp2 x Multiflow SMB550/4-1AC3 x Speed Controller - REB52 x RDH FLEX-SQUARE - ADH/RDH 04502 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)4 x QPTW 250C Acoustic Twin Fan with Controller3 x MTS10- extractor fan 3 step switch1 x REE-2 Electronic Speed Controller2 x CBM 9-9 550w 4P VR (Open Motor)4 x MTP 10, 10K, Speed control3 x Vent Axia Silent 100T (TIMER)4 x PIR Sensor - PIR23 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR3 x Speed Controller - REB11 x UB47- Universal Insulated Terminal1 x Elta - Room Sensor - Temp/Humid/C022 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan3 x PIR Sensor - PIR42 x SAVE VSR 300 heat recovery unit2 x VEKA INT 2000/15.0-L1 EKO2 x CFI In-line 425 - Carbon Filter2 x Silentub - STUB 1001 x Vertical Cowl and Fan (Single Phase) - RAV400-4-12 x AXC TP - 150mm Plastic Centrifugal Inline Fan1 x Potentiometer EGH 01 - for DDMP Fans1 x Transformer Speed Control - RTRE- 7.0Amp1 x CO2 Room Sensor - CO2-R1 x D2E-146-AP47-752 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x Biflow SB315-CON4-3 - High Temperature Bifurcated Fan1 x Duct Termination with Mesh - 710mm1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-43 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans3 x Speed Controller - REB1-N2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Transformer 5 Speed Controller - ATC1-8TK1 x Transformer 5 Speed Controller - ATC1-10TK2 x Helios TSW 3 Amp Transformer speed controller1 x Temperature Fan Speed Controller - ATCP4-WMS2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Transformer speed controller - ATC1 - 1.5 Amps2 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 CS2 Current Switch1 x MWS 3 – Transformer Controller With Motor Protection1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x BEAS-control module2 x Helios HQW-200/2 - IP553 x WS - Reversing Switch from Helios Fans2 x Two Speed Switch - REGUL-22 x Helios HQW-630/4 - IP552 x Vent Axia T-Series Controller1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B2 x Speed controller with Reverse - REB-1R1 x Transformer 5 Speed Controller - ATC1-2TK1 x Helios TSW 1.5 Amp Transformer speed controller2 x Helios HQW-200/4 - IP552 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x REE-1 Electronic Speed Controller2 x Transformer Speed Control - RTRE- 12.0Amp2 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x TG-R room temperature sensor1 x CBS-60 Outlet Flange for CSB/CBT-602 x Isolator Switch - EFF-ISO2 x TG-K3/NTC10-01 - Duct temperature sensor2 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Helios HQW-315/4 - IP552 x Silent 100 Window Kit - windowS1 x Skyflow SSR Horizontal Roof Cowl SSR80B2 x EBM-Papst D4E225-BC01-17 Double inlet1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR3 x VTR 300 STD Filter Kit1 x CPTA-E Flush mounted PIR sensor with timer1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Transformer Speed Control - RTRE- 1.5Amp1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x Contactor Interface Station - CI91 x EBM-Papst D3G133-BF05-14 Double inlet1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x Helios HQW-250/4 - IP552 x DEF-CBM-RE-7 - Protection Guard1 x Helios RR-250-C Centrifugal inline fan1 x Electrostatic Precipitator - 1H x 3W1 x ENV 100 12v transformer SELV
BD7/7 centrifugal M4 0.13Kw
BD7/7 centrifugal M4 0.13Kw
£ 345.00 now £ 300.00
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
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Look good, works well, except the shaft of the lanellae cuts...