• Model:SQS250-1ECL

Quietflow SQS250-1ECL - Centrifugal Box Fan

£ 1,259.39 (excl. VAT)

£ 1,511.27 (inc. VAT)


Quietflow SQS250-1ECL - Centrifugal Box Fan

• Standard size 250 mm
• Air volume flow rates up to 0.347 m3/s
• Static pressures up to 841 Pa
• Suitable for operating temperatures up to +60℃
• Robust galvanised sheet steel casing
Acoustically lined single in-line centrifugal fans, suitable for internal duct mounting. The Quietflow incorporates advanced backward curved impellers, with three ndimensional profiled blades.

Low Noise
Each unit is acoustically lined internally with Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining minimising breakout noise levels.

Easy Installation
New multi-mount brackets allow easy mounting in a range of orientations.

Easy Commissioning
Integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer.

Efficient Performance
High efficiency low tonal noise backward curved centrifugal impellers are directly driven by an EC external rotor motor, provide low specific fan powers and stepless speed control without tonal noise generation.

Weather Resistance
Units can be weatherproofed in the factory to allow external installation.

PDF Files


SQS250-1ECL Specification Sheets

1 x LFBR 160 G4 - Helios Inline Filter Box - 160mm1 x Small Centrifugal Fans CBM/2-133/190 185w1 x D2E146-AP47-C11 x Atex Inline Fan 180mm - ERM18EXE1 x Stainless Steel Male Connector - 250mm1 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 10 Amp Transformer speed controller1 x Silent 100 Window Kit - windowS1 x D2E-146-AP47-751 x Envirovent Silent MV160/100S Mixvent - 100mm - (5 year warranty)1 x Helios TSW 1.5 Amp Transformer speed controller1 x Helios TSW 7.5 Amp Transformer speed controller1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x REU 3amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Transformer 5 Speed Controller - ATC1-10TK1 x Helios TSW 3 Amp Transformer speed controller2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Vent Axia ACM 150 inline mixed flow duct fan1 x RTRD - Three Phase Speed Controller - 2 Amp1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Temperature Fan Speed Controller - ATCP4-WMS1 x Transformer 5 Speed Controller - ATC1-8TK2 x Vent Axia ACM 100 inline mixed flow duct fan1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x CS2 Current Switch1 x MWS 3 – Transformer Controller With Motor Protection1 x Isolator Switch - ISOSW1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven3 x Two Speed Switch - REGUL-21 x Push Timer Switch - ZA41 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Vent Axia ACM 125 inline mixed flow duct fan2 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box2 x MWS 1.5 – Transformer Controller With Motor Protection2 x WS - Reversing Switch from Helios Fans1 x ERR 20/1 Centrifugal inline fan2 x Envirovent G4 Filter - SL-G4/F71 x Elta 6 Amp Electronic single phase speed controller with TK1 x 7 Day Programmable TIMECLOCK1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x DEF-140T Inlet Guard for the CBT-100N1 x CBS-60 Outlet Flange for CSB/CBT-601 x Helios HQW-200/2 - IP551 x Transformer (silent) speed controller - RE 3.0 Amp1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x ERR 31/1 Centrifugal inline fan1 x Electronic extractor fan speed controller - FSC 1.51 x FAST-TRACK RANGE 90mm - Click Ring (1 bag of 10)1 x Helios HQW-200/4 - IP55
LINEO 200 QUIET
LINEO 200 QUIET
£ 293.00 now £ 235.00
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

Excellent low noise fan, I've got one unit running years and...