• 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 Male Ducting Connector - 450mm1 x Spiral Ducting 1 meter - 450mm1 x Biflow SB (CYL) Bifurcated Cylindrical Axial Flow Fan - 400mm1 x Spiral end cap - 450mm1 x Flanged Spigot - 250mm2 x Ducting 90 Degree Bend - 450mm1 x Biflow SB315-CON2-3 - High Temperature Bifurcated Fan1 x 2mtr Insulated Round Ducting - 125mm1 x Stainless Steel CONF-3551 x 150mm Round 90 Degree Bend1 x Stainless Steel IL Flanged Spigot-300mm1 x 110 x 54mm Flat Channel Clip (Pack Of 5)1 x Stainless Steel Duct Suspension Rings - SUR1001 x Stainless Steel Male Connector - 250mm1 x Stainless Steel Male Connector - 200mm1 x Metal Washable Filter G2 Grade - 390 x 390 x 472 x Stainless Steel Duct Suspension Rings - SUR1501 x Ducting T Piece Equal - 250mm1 x 80mm Stainless Steel Female Ducting Connector 316 Grade1 x Anti Vibration Duct Suspension Rings - 160mm1 x Helios DDF-315 Roof Cowl1 x 220x90mm x 2m Insulated Rectangular Duct1 x Female Ducting Connector - 200mm1 x 150mm - 200mm Round Reducer1 x Stainless Steel Male Connector - 150mm1 x Spiral Ducting 1 meter - 80mm1 x 110 x 54mm Round to Rectangular Adaptor - Long1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Stainless Steel Male Connector - 355mm1 x Helios DDF-400 Roof Cowl1 x Stainless Steel Duct Suspension Rings - SUR2001 x Acopel F400-630/1601 x Female Ducting Connector - 250mm1 x RDS 7 Helios Transformer Controller With Motor Protection1 x Atex Inline Fan 180mm - ERM18EXE1 x FRQ-10A V2 Inverter Speed controller1 x Airbrick Grille with flange - 204 x 60mm1 x Ducting T Piece Equal - 150mm1 x Duct Suspension Rings - 250mm1 x Ducting T Piece Equal - 450mm
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 50.56

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