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Roof Air Ventilators

Roof Air Ventilators
Roof Air Ventilators
Product Code : 02
Product Description

Incepted in 2003, we are affianced to offer Roof Air Ventilators to the clients. Our offered ventilators are designed to install in the diverse industries and helps in exhausting hot air. These ventilators are manufactured under the attention our hardworking professionals using quality approved raw materials with the aid of ultra modern machines in tune with market quality standards. Additionally, our precious customers can easily avail these Roof Air Ventilators from us at rock bottom prices with no hassle.

Features:

  • Durability

  • Rugged design

  • Excellent finish

  • Precise dimensions

Specifications:

  • Size: 28" Net Dia & 21" throat Dia

  • Weight: 6.5 Kg approx

  • Technology: PTFEe Bushing ( noiseless)

  • Blades: 36 Nos. 0.5mm Aluminum Blades

  • Frame: MS galvanized

  • Top Cover: Stainless Steel

Note: Available in Aluminum, Stainless Steel, Powder Coating / Anodizing will be on request.

Salient features:
  • No power involved for its operation as its movement is controled by natura wind movement / hot air draft (Thermos Syphoning).

  • The vane's are profiled and rolled to provide strong blade with good aerodynamic performances.

  • Air Power Ventilator's vane are manufactured from high grade aluminium including the rivets and therefore highly resistant to atmoshperic corrosion.

  • Air Power Ventilators are light in weight and hence operational at very lightly wind speeds.

  • Since no power involved for its operations, no recurring charges in terms of electricity.

  • The vane design and the centrifugal action prevent rain water from entering the ventilator.

  • Designed to be fitted easily on asbestos, galvanized, iron and aluminium roofs.Assured ventilation for 24 hours / 65 days.

How To Calculate A Requirement of air Ventilator:
No. of Ventilator Required = Ventilation Rate Q
                                               Exhaust Capacity
Required Ventilation rate (cfm)= Volume (ft) x Air Change Rate
                                                                        60
Volume of Space to be ventilated (ft) = 1xwxh
Select Air Change Rate from. Table A.
Select Exhaust Capacity from Table B as per required Temp.
Diff. C and wind- Velocity (MPH).

Table A: Required Air charge rates

Type of Building Air Change rate Per Hour
Type of Building Air Change Rate Per Hour
Were House 4-6 Engine room / Laundry @ Plastic Factory Heavy Factory / Transformer room
10-30
Textile Mill / Auditorium 4-12
Factories ( Light) Hall 6-12 Print Shop / Boiler room 15-60
Paper MW / Brewery / Oil mill / Packaging Room 8-30


Table B: Performance Data

WIND Velocity (mph)
5 8 10
Temp Diff c
3 5 10 3 5 10 3 5 10

STACK (Height ft) Exhaust Capacity in CFM
Model No.
AP:28

10

939

1000

1102

1436

1498

1600

1792

1854

1958

20

1005

1084

1216

1503

1582

1714

1859

1938

2070

30 1058 1154 1314 1556 1652 1812 1915 2010 2168

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