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Smoke Extract Fans

AJ8 400-2/4 (B)-TR REV (55N) Smoke Extract Axial jet fan 55°C continuous, 300°C/2h, 8,700m³/h

Product Code:94798

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AJ8 400-2/4 (B)-TR REV (66N) Smoke Extract Axial jet fan 55°C continuous, 300°C/2h, 9,440m³/h

Product Code:94799

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IV 50-4/8 (F). Centrifugal induction fan - 55°C continuous, 400°C/2 hours max, 5,990m³/h.

Product Code:92037

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IV 50-4 (F) Centrifugal induction fan 400°C/2h. 5,830m³/h

Product Code:92035

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IV 50-4/6 (F) Centrifugal induction fan 400°C/2h, 55C continuous. 5,540m³/h

Product Code:92036

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IV 100-4/6 (B) Centrifugal induction fan 300°C/2h, 55C continuous. 10,100m³/h

Product Code:92034

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AJR 400-2/4 (B)-TR Axial jet fan 300°C/2h, 55°C continuous. 8,700m³/h

Product Code:94786

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AJR 400-2/4 (B)-TR REV Smoke extract Axial jet fan 300°C/2h, 50°C continuous. 8,700m³/h

Product Code:94790

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AJR 400-2/4 (B)-TR (66N) Smoke extract Axial jet fan 300°C/2h, 55°C continuous. 4,400m³/h

Product Code:94787

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AJR 400-2/4 (B)-TR REV (66N) Smoke extract Axial jet fan 300°C/2h, 55°C continuous. 9,440m³/h

Product Code:94791

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BKF 315D4-6-XL/F400 Smoke extract centrifugal fan, 120°C continuous, 400°C/2 hours, 2,632m³/h

Product Code:95689

£1,417.47 £1,700.96 As low as £1,530.86

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BKF 315D4-8-XL/F400 Smoke extract centrifugal fan, 120°C continuous, 400°C/2 hours, 2,632m³/h

Product Code:95690

£1,390.89 £1,669.07 As low as £1,502.16

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BKF 400D4-6-XS/F400 Smoke extract centrifugal fan, 120°C continuous, 400°C/2 hours, 3,800m³/h

Product Code:95697

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BKF 400D4-8-XL/F400 Smoke extract centrifugal fan, 120°C continuous, 400°C/2 hours, 5,141m³/h

Product Code:95701

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BKF 450D4-6/F400 Smoke extract centrifugal fan, 120°C continuous, 400°C/2 hours, 5,860m³/h

Product Code:95704

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BKF 450D4-8/F400 Smoke extract centrifugal fan, 120°C continuous, 400°C/2 hours, 5,860m³/h

Product Code:95705

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Information

Smoke extract fans are typically used as part of a strategy for minimising the effects of fire. Effective extraction of smoke can win time for escaping occupants and attending fire crews alike.

A sub-branch of smoke fans are car park fans and tunnel fans, sometimes known as jet fans. Although they may extract smoke should a fire arise their main job is to effect an air movement through the structure to ensure that harmful exhaust gases do not accumulate.

Smoke fans are generally rated to operate at higher temperatures than standard fans and they come in numerous forms including roof extract fans, centrifugal duct fans and axial duct fans.

Puravent supplies a range of Systemair smoke extract fans with axial and centrifugal options available to suit your application. Temperature classes between 250 °C and 600 °C are available. If you require any assistance, please call us on 01729 924108 to discuss your requirements.

Heat Load	Watts	BTU
Average The Room Is A Normal Residential Room, Office, Reception Area Or Similar, Where There Is Not Overly Crowded With People, Computer And Office Equipment.
Above Average There Are Factors That Contribute To Additional Heat Being Generated In The Room E.G. Strong Lighting, Overcrowding With People And Office Equipment, Conservatory Type Room, Or Flat Roofed Room.
High There Are Factors That Contribute To A High Heat Load In The Room. E.G. Commercial Cooking, Much Computer And Server Equipment, Switchgear, Temporary Building With Thin Walls And Flat Room, Plain Glass Conservatory.

Variable	Units	Notes/Guidance
System Airflow	M3/Hr	If you have it in cfm then multiply your cfm value by 1.7 to get m3/hr
Average Combined Pressure Drop Of Filters Of Higher Than F6 Efficiency	Pascals	F8 bag filters pressure drop - typical clean clean to dirty, 160 - 250 Pascals F9 compact filters pressure drop - typical clean to dirty, 160 - 350 Pascals H10 HEPA filter pressure drop - typical clean to dirty, 250 - 600 Pascals 9.8 Pascals = 1 mm wg, & 249 Pascals = 1 inch wg
Carbon Filters Pressure Drop	Pascals	For compact type carbons pressure drop between 100 - 150 Pa Bonded carbon panels typically 150 - 170 Pa Loose granular carbon panels typically 130 Pa
Annual Operational Hours	Hrs/Annum	8760 hours in a year If operating for 5 days a week, excluding public holidays, for 12 hrs/day = 3000 hrs
Cost Of Power	Pence Per Kwh	Huge variance in what different companies pay. heck your last bill to be sure, otherwise put in 10p
Fan Efficiency	(As Decimal Value, Eg 100%=1)	Would typically be around 60%, so if you don’t have specific information use 0.6
Fan Motor Efficiency	(As Decimal Value, Eg 100%=1)	Larger motors should be around 90%, so if you don’t have specific information use 0.9

The Total Average Pressure Drop Over Your Higher Efficiency Filters And/Or Carbon Filters Is;		Pascals
This Pressure Drop Is Costing In Energy Alone	£	Per year
It Is Probable That A Sanuvox In-Duct System Could Break Down The Biological, Chemical And Odourous Contaminants On This Air Flow For Between 16 And 25% Of This Running Cost	£	Lower energy cost estimate of an equivalent Sanuvox system (16%)
	£	Higher energy cost estimate of an equivalent Sanuvox system (25%)

Type Of Building	Kw Range		BTU Range
Sports Centres
Retail Premises
Office Premises
Small Industrial Unit
Medium Industrial Units
Larger Industrial Buildings
School/Community Halls
Churches

Room/building volume	m3
Temperature differential (deltaT °C)	°C

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