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1 Piece/Pieces (Min. Order)
Supply Ability:
50 Piece/Pieces per Day
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Quick Details
Place of Origin:
Delhi, India
Not Required
Roof Fan
Brand Name:
Natural Ventilation System
Model Number:
Ventilation system
Blade Material:
Alluminium Alloys
Wind Driven Roof Ventilator
Packaging & Delivery
Delivery Time
2-3 Weeks


Improves indoor air quality.
Water & Bird Proof.
Virtually Maintenance Free.
Silent, Clean and effective.

Specification of Multi-Vent:-

Aluminium alloy Coated Ventilation

Model: - 300/500/600

Materials: - as base material aluminium alloy, on the surface of which sprays a coating of 20µm thickness fluorine carbon polyester; Japanese NSK sealed bearing; fire-retardant reinforced nylon bracket and support or metal support rivet to connect.

Working Condition: - Temperature difference between indoor and outdoor is 0.45oC, it begins to revolve at the wind speed of 0.12m/s.

Roofing Angle: - Applied in different roofing in the scope of 0-22.5o oblique angle.

Warranty: -       15 Years

Applicable Scope: - Industrial Plant, commercial, resident house and civil buildings.





Ventilator Exhaust Calculation and determination:

Determine the indoor volume of the building in cubic meters {length X width X Height} = (VOL)

According to the building type, determine air changes per hour required (N)

Determine the standard wind sped according to local weather records ( and 5m/s), thus air exhaust capacity can be reached (Lp)

The number calculation formula of ventilator:-


n= VOL X N/Lp



Q  Strong, Light weight Construction.

Q  Works on Bearing free self lubricating polymer device.

Q  Silent Operation.

Q  Easy installation on any kind of roofs.

Q  Low cost alternative for conventional Electricity operated Ventilators / Exhaust Fans.

Q  Manufactured from high grade Aluminium.

Q  Manufactured to provide long and trouble free operation in Industrial and Commercial applications.

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