Extra Heavy Duty Exhaust Fans

Comfort range of Exhaust fans have been totally redesigned as per market conditions and a better and stronger version has been introduced and renamedas Comfort MK II

Ideal for exhausting stuffy fumes from work rooms, bakeries, kitchen, bathrooms, workshop & chemical plants etc. extensively being used for desert coolers.


SALIENT FEATURES
  • 100% Water resistant Motor (IP:55 Protection).
  • 100% Dust Proof.
  • Can Withstand Wide Voltage Fluctuations (170V-270V).
  • Dynamically Balanced Blades for Vibration free running.
  • Rust Proof Due to eproxy powder coating.
  • Extra powerful Motor, totally enclosed with double ball bearings lubricated for life.
  • Powder coating after 11 tank pre-treatment.
CONSTRUCTION DETAILS
  • Pressure die cast aluminium parts.
  • Carbon steel shaft for higher strength.
  • Double sealed ball bearings, lubricated for life.
  • All rotating parts dynamically balanced for long bearing life.

CAN WITHSTAND WIDE VOLTAGE FLUCTUATION (170V-270V)


Sweep R.P.M. Model Input Power (W) Air Delivery (M3/Hr.)
300 mm 1400 Comfort MK II 90 1710
380 mm 1400 Comfort MK II 160 3250
450 mm 900 Comfort MK II
Regular
Shakti
145 3900
450 mm 1400 Regular
Shakti
Tiger
Rakshak
410 6120
450 mm 1400 Tornado (ES) 300 6120
600 mm 900 Regular 550 9400
230 mm 2800 Comfort MK II 105  
425 mm 1400 Comfort MK II 170  
* 600 mm 1400 Mahabali 1100 1800M3/Hr
NEW ARRIVALS
300 mm 2800 Comfort MK II 280 2600
450 mm 1400 Speed (ES) 210 4520
600 mm 1400 MAHABALI - 2x 1800 30000

* For the first time in india high performance powerful fan for factories, guesthouses, workshops, halls, open spaces etc.


Selecting the right exhaust fan for your needs

Ventilation essentially means replacing stale, hot air with fresh air and the size and number of exhaust fans required for a particular application is directly dependent upon location and the number of air changes required per hour. Thus, to determine correct size and number of fans, the following factors need consideration:

  • Size of room.
  • Number of occupants and their activities.
  • Heat gain from solar radiation, machinery, etc.
  • Relative humidity and outside air temperature

 Application No. of Air Changes Per Hour
Kitchens 20-32
Canteens/Restaurants 12-20
Office/Laboratories/Hospital Wards 8-12
Factories/Workshops 12-20
Auditoriums/Cinemas/Photographic Darkrooms 20-30
Boiler Houses/Foundries 40-60
Dimensional Specification
Size A B C D E F G H
mm mm mm mm mm mm mm mm mm
230 295 225 250 7.0 210 100 320 220
300 385 317 327 9.5 300 125 255 300
380 470 375 405 9.5 310 127 285 380
450 570 450 482 10.5 360 162 345 450
600 720 598 635 11.5 405 162 385 600
Recommended air changes

There are no rigid rules and recommendations regarding the number of air changes required for adequate ventilation; every building has it own characteristics and much depends on prevailing conditions.

How to estimate required ventilation

To estimate the ventilation required for a given area calculate the total interior space in cubic meters (length x width x height) multiply the figure you get by the particular number of air changes from the table above. Check this figure with the air delivery of the particular size of the fans & select the size and the number of fans needed.



Rakshak Heavy Duty Exhaust Fan
Sweep R.P.M. Model Input (W) Power Air Delivery (M3/Hr.) Voltage (Volts)
450mm 1400 Rakshak 300 6120 110-260

Features and construction details same as other models.


After years of research and development and based on market conditions in interior towns, Vansal has introduced for the first time in India "Rakshak" series of fans.
They can work in voltage range of 110volts-260volts


Model: EXM-37 (350 WATT) 1400 R.P.M. [37mm (1.5") Stamping]

  • Speed: Single / Three
SALIENT FEATURES
  • 100% Water resistant Motor (IP:55 Protection).
  • 100% Dust Proof.
  • Can Withstand Wide Voltage Fluctuations (170V-270V).
  • Rust Proof Due to eproxy powder coating.
  • Extra powerful Motor, totally enclosed with double ball bearings lubricated for life.
  • Shaft Size Available in 12.5 mm & 14.9 mm