• Model:SQS250-1ECL

Quietflow SQS250-1ECL - Centrifugal Box Fan

£ 1,177.00 (excl. VAT)

£ 1,412.40 (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 Ducting 30 Degree Bend - 355mm1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF500/4-3AC - Three Phase1 x HEATER BATTERY+CONTROLS 315 DIA 1 PHASE 4/8kW1 x Sentinel D-BOX 100S1 x AMD 225/2 - Medium pressure axial fan 3-PH 400 V1 x Helios GigaBox 400mm GBW 400/4 centrifugal1 x Clearflow CFHT Kitchen/High Temp Roof Fan - CFHT350/4-3AC1 x CRHB-250N Ecowatt - Energy Efficient Roof Fan1 x Ducting 30 Degree Bend - 315mm1 x PRIO-160 160mm Inline Mixvent Fan1 x CRHB/6- 315mm Roof mounted Fan - Horizontal discharge1 x Ducting 15 Degree Bend - 315mm1 x Female Ducting Connector - 315mm1 x Jetflow-HIT Metal inline - 160mm1 x Duct Termination with Mesh - 315mm1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF400/4-3AC - Three Phase1 x Clearflow CFHT Kitchen/High Temp Roof Fan - CFHT500/4-3AC1 x Activated Carbon Discarb Cell - 598H x 598W x 598Dmm1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF350/4-3AC - Three Phase1 x Spiral Duct Grille Termination - 315mm1 x Commercial Activated Carbon Filters - Panel Type - 20" x 20" x 1 - ACP1 x Metal Inline Fan - VENT-150NK1 x Ducting Y Piece - 315mm1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF350/4-1AC - Single Phase1 x TD500 Mixvent - 160mm - TD500(5211302400)1 x Axial Roof mounted Extract/Supply Fan- -HCTT/4-1000-A 5.5kw1 x MV EC 150 Multivent1 x Ancillary Sealing Band - 315mm1 x Clearflow CFHT Kitchen/High Temp Roof Fan - CFHT560/4-3AC1 x Ducting Reducers Short - 315mm-250mm1 x Commercial Activated Carbon Filters - Panel Type - 24" x 24" x 1" - ACP1 x Kitchavent 2000 Odour control System1 x Inline Hepa filter with housing & pre-filters1 x Duct Fast Clamps - 315mm1 x Activated Carbon Discarb Cell - 293H x 293W x 598Dmm1 x Etamaster EM 150 L EC 01 inline mix-vent fan1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF315/4-1AC - Single Phase1 x Ducted Outlet Option for H14 - HAP5001 x DEF-800AN1 x Three Phase ATEX Compact axial fan - 355mm - compactA3ATE1 x Spiral Ducting 1 meter - 450mm1 x 125mm Round Equal T Piece1 x Systemair Save Touch Control Panel - White1 x FlameProof Plate Axial Fan - Three Phase - 15 inches - Eexd IIC T4 -4pole1 x Helios HQW-500/4 - IP551 x Elta SLC900/4A-3AC - IP55
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
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I have a loft mount extractor fan which was very noisy. I ...