• 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

2 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x EC-Vent control board1 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 Elta ACO Panel 149-ACO18B1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EC-Vent Room Unit1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Systemair Save Connect 2.0 Internet Module1 x EM30-24 Control Panel Commissioning Service1 x Elta Wall Cowl SWC56/631 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC45/501 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC25/311 x Elta Louvre Shutter - 400mm1 x Jet Cowl - 315mm1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x FU 075 52 Frequency Inverter (IP20)1 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x ELTA - Single Phase Transformer 2amps1 x Time Delay Unit - DT20B2 x 7 Day Programmable TIMECLOCK1 x Single Deflection Grille 400mm with OBD damper1 x ERR 20/1 Centrifugal inline fan1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH1 x Mini Diffuser - 100mm1 x Egg Crate Grille with Dust panel filter 1 inch- 300x3001 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FRQ-10A V2 Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter RUCK - FU 075 201 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 381 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Three Phase Transformer 3amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x FRQ5-10A Inverter Speed controller1 x ELTA - Three Phase Transformer 10amps1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x FU 075 04 Frequency Inverter (IP20)1 x Circular Ceiling Diffuser - TST 1601 x Versio Square Ceiling Diffusers - RS141 x Balance S Diffuser - NO RING - 100mm2 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 16amps1 x Elta 6 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 2 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 300mm2 x Vent Axia ACM 125 inline mixed flow duct fan1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x TTC-2000 Three phase electric heater controller1 x TG-K Duct temperature sensor1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Transformer (silent) speed controller - RE 5.0 Amp1 x REE-2 Electronic Speed Controller1 x REB-CVF 0-10v Controller1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x PIR Sensor - PIR21 x Speed Controller - REB11 x QPTW 250C Acoustic Twin Fan with Controller1 x PIR Sensor - PIR41 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Duct Termination with Mesh - 150mm1 x Binks Bullows - Spray Booth Filter2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x FU 15 40 Frequency Inverter1 x FU 22 25 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Round ceiling diffuser 400mm1 x Transformer 5 Speed Controller - ATC1-12TK1 x Curved Blade Grille 600x600 (2way blow)1 x Helios TSW 3 Amp Transformer speed controller2 x Electronic extractor fan speed controller - FSC 1.51 x JSR 200 Painted RAL50181 x Vent Axia ACM 150 inline mixed flow duct fan1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps1 x Round ceiling diffuser 350mm1 x Airvent ceiling fan controller1 x Round ceiling diffuser 250mm1 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x COM-31 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Vent Axia ACM 200 inline mixed flow duct fan1 x ELTA - Single Phase Transformer 10amps2 x Transformer speed controller - ATC1 - 1.5 Amps2 x Remote Timer Control - 13511 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x Run On Timer - 5s - 4hrs - RT5A1 x DEF-140T Inlet Guard for the CBT-100N2 x Helios ZNE Electronic Fan Overrun Timer1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Push Timer Switch - ZA41 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x Speed Controller - REB31 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Speed Controller - REB101 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Transformer Speed Control - RTRE- 7.0Amp1 x Helios HQW-400/4 - IP551 x Speed Controller - REB1-N1 x MTS10- extractor fan 3 step switch1 x DEF-CBM-RE-7 - Protection Guard1 x Vent Axia Silent 100T (TIMER)1 x RDH FLEX-SQUARE - ADH/RDH 04501 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Silent 100 Window Kit - windowS1 x CBT-100N Centrifugal1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x DDMP 12-12 3F 1810W M6A4 DG01 x Elta 6 Amp Electronic single phase speed controller.1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Compact SCD450/4-1AC1 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x EBM-Papst D3G133-BF05-14 Double inlet1 x GENIOX 11 Internal Mounted Unit1 x TD160-NT Mixvent - 100mm - TD160 Timer1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x CFI In-line 425 - Carbon Filter1 x MTP 10, 10K, Speed control1 x FFR 355 Filter Cassette1 x GXC6EC - High Performance Extract Fan1 x CBA-100 Inlet Flange for CBT-1001 x Electrostatic Precipitator - 1H x 3W1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Isolator Switch - ISOSW1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Helios HQW-200/2 - IP551 x Elta - Room Sensor - Temp/Humid/C021 x Silentub - STUB 1001 x VTR 500 STD Filter Kit1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x IR24-P - Presence detector
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40

I have a loft mount extractor fan which was very noisy. I ...