S  H  R  E  E    K  R  I  S  H  N  A     F  A  N  S








The Need of an Exhaust Fan


Whether it's in an office or a factory, a laboratory or an auditorium, a bakery or an kitchen, the air that we breathe gets stale and heated with time-making the place uncomfortable and unhealthy. The heat gets unbearable, the steam or smoke highly irritating. What is then desperately needed is an improved air condition or adequate number of air changes. This is obtained only through powered ventilation - an Exhaust Fan. It squeezes out polluted air and allows inflow of cool and fresh air - in a double-action way. Features

The EPC Exhaust Fan is provided with capacitor, start and run induction motor of robust construction, totally enclosed, continuous rated type and specially designed for fan duty. Direction of rotation can be changed simply by interchanging connections of the stator windings. Conforms to I.S. Specifications No. 2312/1967 and is generally provided with class 'A' insulation; class 'E' insulation can be offered to meet special requirements. Fan motors have two ball bearings adequately lubricated

The largest range of I.S.I. marked exhaust fans in India

 EPC Exhaust Fan has the widest range to cover and suit your requirement from 230 mm (9") to 900 mm (36") in both single and three phases.






How To Install



Exhaust Fan-The Way To Install

Positioning of Exhaust Fans is an important factor in ventilation. Wrong positioning will make installation meaningless. Fans should be installed away from the air - paths or inlets as far as possible, enabling them to draw out polluted air and draw in fresh air quickly. Fans should be placed high on the wall - opposite to the air - inlets, for being polluted, the warm air starts rising. Placing them near doors or windows will cause air movement to be short circulated between the fans and adjacent inlets - keeping part of the room unventilated (see illustration above). It is preferable to use combination of small and medium sized fans than one large fan.



Diaphragm Mounted Fans

EPC Exhaust Fans can be supplied with special mounting arms (but without rings) to function against resistance. This helps radial flow from the wing tips - reducing back flow losses and increasing pressure development. The ring mounted fans give maximum volume under free air flow conditions while the diaphragm mounted fans give maximum volume under free air flow conditions while the diaphragm mounted fans work against resistance.
Protection From Exposure

Fans, exposed to weather, are subject to moisture and dust - laden atmosphere-- necessitating special protective treatment. As required, EPC Exhaust Fans can be coated with epoxy paint or chlorinated rubber paint for protection against corrosive atmosphere. While working in moisture - laden atmosphere,the motor winding may absorb water causing damage to motor insulation. The Fans can provide special impregnation of motor windings, protection against ingress of water and guarantee protection against ingress of water and guarantee protection of all interior and exterior surfaces.






Wire Guard: Protection For Impeller

The motor and impeller sides of EPC Exhaust Fans may be provided with strong wire guards. Motor side guard fits over mounting arms while impeller side guard fits into the orifice in the fan ring or diaphragm.



Regulators may be supplied for use with 230 mm , 300 mm, 380 mm, 450 mm, 600 mm, single phase fans. They have four speeds, are metal clad and of auto - transformer type for 450 mm 1400 r.p.m. and 600 mm 920 r.p.m. fans and of choke type for others. Electronic Stepless Regulators can also be supplied with all single phase fans.

Louvre Shutters

These are made of aluminium, fitted into a steel frame with four fixing lugs. They are opened by fan draught and closed by gravity when the fans are switched off.



Wall Cowls

They provide an effective protection for fan outlets in exposed position. They protect the fans from weather and prevent opposing winds to restrict fan output. Reduction in delivery of free air due to fixing flanges. They are strong and coated with anti - rust paint.

EPC Exhaust Fan has the widest range to cover and suit your requirement from 230 mm (9") to 900 mm (36") in both single and three phases.


Fans, of all sizes, are packed in cartons - Fan Motor in one, Impeller Fitment in the other. Instructions regarding installation of electrical connection are given with each fan.

I.S.I. Certification Marking

EPC's is the only Exhaust Fan in India having its full range certified by the Indian Standard Institution.



Air Change


EPC Exhaust Fans Play A vital Role In... 


Ventilation in a factory is a delicate problem. Serious air pollution from excessive heat, smoke and dust affects the general health, overall efficiency and output in a factory. EPC Exhaust Fans will solve this problem. 


Many badly planned public auditoriums become hot and stuffy immediately after their doors are closed and the show begins . 
Ceiling fans or air circulators cannot ease this situation except Exhaust Fans. 


Most cafeterias lack proper ventilation--cookingodors  and steamy - muggy air float constantly. It is desirable that EPC Exhaust Fans should be fitted here to enable people to eat their food at ease. 


Although banks in metropolitan cities are betterventilated, it's not so in towns and villages . The hectic working pattern in banks require hygienic and comfortable working condition - ensured only by Exhaust Fans.

A library room should be airy and damp - proof as possible both for the health and hygiene of library users and thousands of books stored therein. EPC Exhaust Fans protect it from moisture, pollution and contamination. 


Our kitchen and toilet are often gloomy and stuffy with insufficient air inlets. They need 
minimum 10 to 20 air changes per hour. EPC Mini Exhaust Fans eliminate malodor and stuffiness. 

Other Uses

Besides general ventilation, EPC Exhaust Fans are widely used in Room Coolers - the most effective and economical device used in dry and low humid climates to keep houses and working places cool andcomfortable. The 450 mm (18") single phase 720 r.p.m. and 920 r.p.m. fans are ideal for domestic purpose and 600 mm (24") 720 r.p.m. and 920 r.p.m. for large Room Coolers in cinema halls, restaurants, etc. Simple enough, one can make such a cooling unit at home at a very low cost.
Air Change-The Sole Solution

Air change is thus the most vital factor for an environment. Varying from location to location, it depends upon the surrounding, the number of people working and also the nature of work. A bank or an office requires much less air changes than a foundry or a boiler house. The table shown is a general guide. To determine the number of Exhaust Fans required, multiply the cubical content of room (length x width x height) in metre or feet by the number of air changes required and divide the result by air delivery of fan (see table). 

Location Air-Changes
Per Hour
Assembly Halls 8-12
Bakeries 10-30
Banks 6-10
Banquet Halls 12-20
Cafes / Restaurants 15-20
Canteens 15-25
Club Rooms 8-12
Factories 10-20
Garages 8-20
Hospitals 8-12
Hotel Bars 12-20
Kitchen (domestic) 10-20
Kitchen (commercial) 20-30
Laboratories 10-15
Lavatories 15-20
Offices 8-12
Paint Shops 30-50







Signup for Offers & Newsletters