I. Wisdom ventilator components
1.Waterproof baseboard
The 500 type ventilator baseboard is 750mm*750mm, the 600 type ventilator baseboard is 900mm*900mm.
2. The axis and the bearing:
Wisdom auto ventilator uses the Japanese NSK entire airtight bearing, exempts the lubrication. The C45 number steel takes the main axle, which has the very strong inoxidizability, outside the main axle by fireproofing the nylon engineering plastics package.
3. The support:
Wisdom auto ventilator uses fireproofing the enhanced nylon engineering plastics to take the support, it is lightly, but has the metal intensity, and has the plastic toughness, has the very strong restoration performance, it is introduced from Korea, it is tested that it can bear a man weight.
4. Angle Alterable Neck
Wisdom auto ventilator has a special neck, the neck can alter angle as the gradient of the roof that the turbine located horizontally, so that prevent attrition between the turbine and neck to ensure the ventilator a long life. And an important function is to reduce shakiness, because the steel structure are assembling in welding, the welding joints are easily disjoint by shaking. If used the alterable neck, it will no shakiness, no noise any more.
5. The leaf blade:
Wave leaf blade was designs according to the precise hydromechanics principle, has designed into 32 pieces for one ventilator, has enlarged the fan blade and the wind contacted area and the angle, also might obtain in the breeze, has avoided all quarters to the wind poured into the air flue phenomenon, and using all quarters to the wind sped up the turbine wheel head the velocity of whirl, fully played a rainproof, guards against the snow, the exhaust fan role. Because has used the wave shape, the mechanical strength was enhanced, the bearing pressure ability is the best in the similar product.

II. Wisdom ventilator design localization
Traditional ventilator should install in the crown because they have no alterable neck. Wisdom ventilator can mount below the ridge lap, effectively avoids the water leakage.
Type Height Length Width Weight
500 PPGI Material 52cm 75cm 75cm 12.5kg
500 Stainless Steel Material 52cm 75cm 75cm 11kg
600 PPGI Material 74cm 84cm 84cm 17.5kg
600 Stainless Steel Material 74cm 84cm 84cm 16kg

III. Wisdom ventilator caliber expression method
Wisdom various models ventilator each necessary size see the form:

IV. How to calculates the quantity of the ventilator

1. Lie on construction room volume VOL(long. Width. High).

2. According to the building type, you can get A/C as the following form:
Air exhausting exchange rates of different buildings ( A/C)
Construction type Exhaust times each hour
Warehouse 3-5
Factory and workshop 3-8
Gymnasticstennis hall 3-8
Assembles the hall 6-12
Garage 6-12
Restroom 7-12
Laundry room 7-15

3. According to local the meteorological record, determines the standard wind speed(6, 8, 10, 12 as well as 16km/h), thus two obtains the ventilator by the table to take a breath the ability.
500TYPE 600TYPE
Wind speed km/h Capacity for exhausting air m3/hr Wind speed km/h Capacity for exhausting air m3/hr
6 1918 6 2300
8 2574 8 2830
10 2884 10 3172
12 3132 12 3435
16 3924 16 4316

4. At last, you can get the Quantity by this formula:
The ventilator QUANTITY = VOL*A/C / CAPACITY FOR EXAUSING AIR