• Model:FSAF-2

FSAF400C2DB Silencer 450/8

£ 409.58 (excl. VAT)

£ 491.50 (inc. VAT)

Circular attenuator suitable for direct connection to 400mm cased axial fans.

Construction comprises galvanised steel outer casing, end rings fitted with tapped inserts to suit the relevant fan drilling detail. Inner bore is manufactured from perforated galvanised steel spiral tube retaining a 45 kg /m³ density acoustic media with a surface particulate membrane. Fitted with a centrally mounted cylindrical acoustic pod with aerodynamic end domes.

Frequency    Hz 63 125 250 500 1K 2K 4K 8K
Insertion Loss dBW 3 5 8 16 17 17 17 10

Customers also purchased...

2 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Helios TSW MCB Amp Transformer speed controller2 x Vent Axia ACM 100 inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-12TK2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Transformer (silent) speed controller - RE 3.0 Amp1 x Multiflow SMB550/4-1AC1 x Remote controller FLEX - for VEKO INT1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Helios TSW 7.5 Amp Transformer speed controller2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 125 inline mixed flow duct fan1 x DEF-140T Inlet Guard for the CBT-100N1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Helios HQW-630/4 - IP551 x Remote Timer Control - 13511 x CBS-60 Outlet Flange for CSB/CBT-601 x Transformer (silent) speed controller - RE 1.5 Amp1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Speed Controller - REB1-N2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW 3 Amp Transformer speed controller1 x RDS 11 Helios Transformer Controller With Motor Protection1 x Systemair Save Connect 2.0 Internet Module1 x 7 Day Programmable TIMECLOCK1 x Electronic extractor fan speed controller - FSC 1.51 x Speed Controller - REB31 x Speed Controller - REB51 x Speed Controller - REB101 x MTP 10, 10K, Speed control1 x CBM 9-9 550w 4P VR (Open Motor)1 x Transformer Speed Control - RTRE- 1.5Amp1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x MTS10- extractor fan 3 step switch2 x Vent Axia Silent 100T (TIMER)2 x PIR Sensor - PIR21 x Silent 100 Window Kit - windowS1 x Speed Controller - REB12 x QPTW 250C Acoustic Twin Fan with Controller2 x Temperature Fan Speed Controller - ATCP4-WMS1 x Push Timer Switch - ZA42 x Vent Axia ACM 200 inline mixed flow duct fan1 x CS2 Current Switch2 x Isolator Switch - ISOSW1 x MWS 3 – Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp
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 ...