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Solution for Air ventilations

Turbo Ventilator Fans, Ridge Ventilators and S Type Louvers to ensure air circulation, removal of hot & toxic air and reduce industrial heat.

INTRODUCTION

Industrial Ventilation is becoming a point of major concern for most manufacturing workplaces and factories due to the generation of process heat, toxic fumes, gases and vapours during the production process or due to atmospheric adversity. This not only affects the productivity of the work force working in the premises but can also adversely affect their health in the long run.

Devashish Interiors Pvt. Ltd. has introduced Devashish Turbo Air Ventilators, which runs on natural air and is highly effective in removal of hot and toxic air from the premises. While this product is a low cost alternative for the conventional electrically operated ventilators / exhaust fans, the efficacy of the same has been tested and proven around the globe.

Devashish Turbo Air Ventilators operate on wind energy thereby enabling saving of substantial power savings to the user. Further, it provides a number of benefits like:

High Efficiency due to continuous rotation.

Economical since it runs on natural air.

Maintenance Free due to engineering expertise.

Aesthetically appealing due to its appearance.

Devashish Turbo Air Ventilators are ideal for ventilation of manufacturing plants, furnaces, warehouses, public buildings, schools and houses.

How it works ?

The hot air in the premises rises up naturally and stays below the roofing thereby increasing the inside temperature. The engineering design of the Devashish Turbo Air Ventilators enables the rotation of the fan in the lowest wind conditions. The continuous movement of the Devashish Turbo Air Ventilators vanes creates a vacuum beneath the fan and the centrifugal force leads to the suction of hot air from beneath the roof. Warm air rushes up to fill the vacuum and is expelled in the outside atmosphere through the airfoil vanes even in the lowest wind conditions.

Devashish Turbo Air Ventilators, by its process engineering, draw air upwards, creating convection current and in the process, they extract stale air together with air which has become hot due to the building exposure.

Devashish Turbo Air Ventilators have wide acceptance due to:

Relatively low capital cost.

High capacity per vent.

Simple monitoring-free operations.

Sturdy hence designed to withstand a wind velocity of highest order.

The basic structure is made from Aluminum hence the same is light weight.

Bearing less cylindrical assembly ensures that the product is maintenance-free for years.

Enables flexibility and can be installed anywhere on the roof without any structural changes.

The FRP feature on which the Ventilator is mounted is Sturdy, light-weight, impact resistant, suitable for all roof types, adjusts to slopes from zero to upto 30 degrees.

Devashish Turbo Air Ventilators are lightweight, this enables flexibility as it is easily adaptable to all kinds of roofs and can be installed almost anywhere on the roof without any structural changes. Technical Performance Rating and installation instruction available on request.

* We also accept special orders for Non-Standard sizes.

Models Available

DI – 300 (Throat Diametre of 300)

DI – 600 (Throat Diametre of 600)

DI – 700 (Throat Diametre of 700)

DI – 500 (Throat Diametre of 500)

DI – 650 (Throat Diametre of 650)

Note : All the dimensions shown are in mm and are subject to alterations without notice.

Performance Ratings (Cubic Meters Per Second)
Stack Height
(m)		 Wind Speed
(Km/hr.)		 Temp Diff.
0C		 Exhaust Rating in Cubic meters per second
D1 Models (Actual diameters in mm)
300 500 600 650 700
    6 0.158 0.437 0.630 0.800 0.984
    17 0.188 0.522 0.751 0.954 1.175
    6 0.184 0.512 0.738 0.937 1.154
  8.0 11 0.191 0.530 0.763 0.969 1.194
6.1   17 0.199 0.553 0.797 1.012 1.246
    6 0.277 0.767 1.105 1.404 1.729
  12.8 11 0.285 0.792 1.141 1.449 1.784
    17 0.310 0.860 1.239 1.573 1.937
    6 0.344 0.956 1.377 1.748 2.153
  16.0 11 0.354 0.982 1.414 1.795 2.211
    17 0.367 1.018 1.467 1.863 2.294
    6 0.166 0.461 0.664 0.843 1.038
  6.4 11 0.188 0.522 0.751 0.954 1.175
    17 0.210 0.582 0.839 1.065 1.312
    6 0.196 0.545 0.785 0.997 1.228
  8.0 11 0.199 0.553 0.797 1.012 1.246
9.14   17 0.230 0.660 0.922 1.171 1.441
    6 0.279 0.775 1.116 1.417 1.745
  12.8 11 0.310 0.860 1.239 1.573 1.937
    17 0.321 0.891 1.238 1.630 2.007
    6 0.352 0.997 1.408 1.773 2.197
  16.0 11 0.367 1.018 1.467 1.863 2.295
    17 0.371 1.033 1.486 1.888 2.324
How to specify Size and Model Number

Obtain cubic volume area to be ventilated (Width x Length x Height).

Multiply by air charges required per hour and bring to m3/s by division.

Divide by number of ventilators desired (approximately 6 meter spacings).

From performance rating chart determing the model.

Devashish Turbo Air Ventilators operate on wind energy thereby enabling saving of substantial power savings to the user. Further, it provides a number of benefits like:

High Efficiency due to continuous rotation.

Economical since it runs on natural air.

Maintenance Free due to engineering expertise.

Aesthetically appealing due to its appearance.

Devashish Turbo Air Ventilators are ideal for ventilation of manufacturing plants, furnaces, warehouses, public buildings, schools and houses.

How it works ?

The hot air in the premises rises up naturally and stays below the roofing thereby increasing the inside temperature. The engineering design of the Devashish Turbo Air Ventilators enables the rotation of the fan in the lowest wind conditions. The continuous movement of the Devashish Turbo Air Ventilators vanes creates a vacuum beneath the fan and the centrifugal force leads to the suction of hot air from beneath the roof. Warm air rushes up to fill the vacuum and is expelled in the outside atmosphere through the airfoil vanes even in the lowest wind conditions.

Devashish Turbo Air Ventilators, by its process engineering, draw air upwards, creating convection current and in the process, they extract stale air together with air which has become hot due to the building exposure.

Devashish Turbo Air Ventilators have wide acceptance due to:

Relatively low capital cost.

High capacity per vent.

Simple monitoring-free operations.

Sturdy hence designed to withstand a wind velocity of highest order.

The basic structure is made from Aluminum hence the same is light weight.

Bearing less cylindrical assembly ensures that the product is maintenance-free for years.

Enables flexibility and can be installed anywhere on the roof without any structural changes.

The FRP feature on which the Ventilator is mounted is Sturdy, light-weight, impact resistant, suitable for all roof types, adjusts to slopes from zero to upto 30 degrees.

Devashish Turbo Air Ventilators are lightweight, this enables flexibility as it is easily adaptable to all kinds of roofs and can be installed almost anywhere on the roof without any structural changes. Technical Performance Rating and installation instruction available on request.

* We also accept special orders for Non-Standard sizes.

Models Available

DI – 300 (Throat Diametre of 300)

DI – 600 (Throat Diametre of 600)

DI – 700 (Throat Diametre of 700)

DI – 500 (Throat Diametre of 500)

DI – 650 (Throat Diametre of 650)

Note : All the dimensions shown are in mm and are subject to alterations without notice.

Performance Ratings (Cubic Meters Per Second)
Stack Height
(m)		 Wind Speed
(Km/hr.)		 Temp Diff.
0C		 Exhaust Rating in Cubic meters per second
D1 Models (Actual diameters in mm)
300 500 600 650 700
    6 0.158 0.437 0.630 0.800 0.984
    17 0.188 0.522 0.751 0.954 1.175
    6 0.184 0.512 0.738 0.937 1.154
  8.0 11 0.191 0.530 0.763 0.969 1.194
6.1   17 0.199 0.553 0.797 1.012 1.246
    6 0.277 0.767 1.105 1.404 1.729
  12.8 11 0.285 0.792 1.141 1.449 1.784
    17 0.310 0.860 1.239 1.573 1.937
    6 0.344 0.956 1.377 1.748 2.153
  16.0 11 0.354 0.982 1.414 1.795 2.211
    17 0.367 1.018 1.467 1.863 2.294
    6 0.166 0.461 0.664 0.843 1.038
  6.4 11 0.188 0.522 0.751 0.954 1.175
    17 0.210 0.582 0.839 1.065 1.312
    6 0.196 0.545 0.785 0.997 1.228
  8.0 11 0.199 0.553 0.797 1.012 1.246
9.14   17 0.230 0.660 0.922 1.171 1.441
    6 0.279 0.775 1.116 1.417 1.745
  12.8 11 0.310 0.860 1.239 1.573 1.937
    17 0.321 0.891 1.238 1.630 2.007
    6 0.352 0.997 1.408 1.773 2.197
  16.0 11 0.367 1.018 1.467 1.863 2.295
    17 0.371 1.033 1.486 1.888 2.324
How to specify Size and Model Number

Obtain cubic volume area to be ventilated (Width x Length x Height).

Multiply by air charges required per hour and bring to m3/s by division.

Divide by number of ventilators desired (approximately 6 meter spacings).

From performance rating chart determing the model.

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