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RHINOTUFF Roof Ventilators01-01-1900

rhinotuff-roof-ventilators

RHINOTUFF Roof Ventilators are roof mounted natural air ventilation system. They are free spinning roof exhausts, which works by utilizing the Kinetic Energy of wind to induce air flow through Centrifugal Action.


RHINOTUFF Roof Ventilators start revolving due to the force of the outside wind and the pressure of the inside hot air. The Centrifugal Force (backward thrust) caused by the spinning vanes creates a region of low pressure, which draws and throws out air from below and causes fresh cool air from the outside to come in. The slightest breeze will cause the Roof Ventilators to spin. Even after the breeze has stopped, the fly wheel effect of its rotor cage will used its stored energy to continuously remove inside stale air giving and thereby giving rise to natural ventilation. Suction is maintained at very low wind speeds. Convective thermal currents are given boost by Venture Dome to further enhance revolution of the Roof Ventilators. Cooler air from the outside will rush into the negative space in the building to maintain a condition of equilibrium. 


Stale hot air is exhausted through the Roof Ventilators, whereas fresh air only comes in through the openings in the building. The incoming outside air can be filtered by installing filters over the inlets. This is necessary in case of pharmaceutical and food processing industries. 


RHINOTUFF Roof Ventilators provide round the year natural ventilation at no running cost. They continuously exhaust smoke, gases, fumes, dust and hot air from the place of installation and thereby giving rise to natural ventilation.


RHINOTUFF Roof Ventilators are available in two standard throat diameter sizes 21’’ (530 MM), 22’’ (560 MM) & 24’’ (600 MM).


Exhaust Capacity: 


Wind

Velocity (mph)

3

8

10

Temp. Diff.

(Deg C)

3

5

10

3

5

10

3

5

10

Model No.

Stack (Height  

 in Ft.)

* Exhaust Capacity in C.F.M.

ATV-L/STV-L

10

939

1000

1102

1436

1498

1600

1792

1858

1958

20

1005

1084

1216

1503

1582

1714

1859

1938

2070

30

1058

1154

1314

1556

1652

1812

1915

2010

2478

40

1107

1216

1394

1605

1714

1896

1961

2070

2731











      








They comprise of the following two major components:


  1. Roof Ventilator Fans 
  2. Base Frames

The 21’’ & 24’’ Fans can be in Aluminium (AL.) or Stainless Steel (S.S.) or a combination of Aluminium & Stainless Steel. The 22’’ dia Fans are manufactured using Stainless Steel (S.S.) & Polypropylene (PP).


The Base Frames can be in Fibreglass (FRP), Polycarbonate (PC), Aluminium (AL.) or Stainless Steel (S.S.). 


The FRP Base Frames are up to 70% transparent whereas the PC Base Frames are up to 90% transparent. As a result, both allow natural light to pass through them (in varying degrees) and thereby providing natural illumination as well.   


RHINOTUFF Roof Ventilators can be used at homes, commercial buildings such as schools, colleges, hospitals etc., industrial sheds and warehouses or any other place where natural ventilation is needed. 


RHINOTUFF Roof Ventilators work on renewable energy devices and help conserve precious energy meant for forced ventilation and artificial lighting. They are therefore environment friendly. 


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