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Roof Turbo Ventilator

  It's ideal for high performance industrial Roofs. This Ventilation System is driven by natural wind & it's turbines operate by utilising the velocity energy of the wind to induce airflow by centrifugal action.

The centrifugal force caused by the spinning vanes creates a region of low-pressure area, which draws the air through the turbine. The air drawn out by the exhaust ventilator, is continuously replaced by fresh air from outside.

The ventilator operates by harnessing the full velocity energy of the wind, to induce airflow by centrifugal force. During rotaion, the centrifugal force created, draws the air in the turbines towards the spinning vanes and out of the turbine. The airfoil vanes act as cups, catching the wind at the windward side of the turbine. Simultaneously air is forced out at the leeward side creating continuous airflow; giving rise to ventilation.

Unlike doors and windows, these wind driven ventilators, draw air upwards, creating convection current and in the process, they extract stale air, with air which is hot due to the building exposure.
Air Ventilator
Size :24"Net Dia & 21"Throat Dia
Weight :6.5Kg approx.
Bushing :Teflone Bushing (noiceless)
Blades :36 Nos. 0.5 mm Aluminium Blades
Bracket :MS galvanized
Top Cover :Stainless steel
Ring :Stainless steel
Note :Available in Aluminium Stainless steel Power Coating / Anodizing will be on request
FRP Sheet
Thickness :2 mm & 2.5 mm
Length :1.80 metre
Width :as per profile
Colour :Translucent

Advantages of Air Exhaust Ventilator:

   Factory guarantee for 5 yrs.
   This unique design doesn,t allow air to enter from top, hence creating an un-directional flow of air, thus more effective than
     conventional system
   Absolute low costs, No maintenance costs & No electricity costs
   Complete assurance of air ventilation for 365 days
   Maintains hygienic conditions by removing foul smell
   It is human & environment friendly
   It's Leak proof, hence doesn't allow water to enter inside
   Easy to install on existing old roof or new roof of any type, having slope of 0 to 45 degree
   Reduces structural stresses & dampness problem
Selection Procedure
1) Determine volume of space to be ventilated
Volume (ft3) = L x W x H
L = Length, W = Width, H = Height of building

2) Select Ai Change Rate

3) Calculate required ventilation rate Q (cfm)
Q (cfm) = Volume (ft3) x Air change Rate
Determine No. of ventilators = Ventilation Rate Q
Exhaust Capacity
  Building demensions with L=100ft, W=60, H=20ft
Volume (ft3) = 120000 ft3
Air change Rte selected = 12 per hour
Ventilaltion rate Q= 120000 x 12 =24000 CFM
  Exhaust capacity = 1972 CFM
under wind valocity of 8mph having stack height 20ft
Means = 24000 =12 Nos. of air exhaust ventilators will be required