Unpowered ventilator

Detailed introduction of unpowered ventilator

Advantages of non powered ventilators

Excellent ventilation effect, zero cost operation:
The DL type unpowered ventilator, as an unpowered natural exhaust equipment, does not require personnel operation or electrical resources 24 hours a day. After installation, it can not only discharge polluted, humid, and high-temperature air from the working environment, but also continuously replenish fresh air, creating an excellent working environment. And it can prevent indoor condensation in winter, thus protecting the fireproof coating on the inner wall of the roof panel from moisture and peeling off.
Excellent Material:
The body of the DL type unpowered ventilator is made of high-quality stainless steel material, which is not affected even in harsh environments. Specially manufactured fully enclosed bearings are enclosed in specially designed shaft sleeves to ensure that the turbine operates continuously and stably under normal working conditions without the need for maintenance. The unique support structure ensures that the ventilator can withstand strong winds.
Widely applicable, safe and reliable:
The non powered roof ventilator adopts a unique variable angle pipe diameter, which can be installed on various industrial factory light steel structure profiled sheet roofs and concrete roofs with an inclination angle of 0-22.5 °. And there is no need for a bracket, easy installation, and no water leakage.
In terms of civilian use, it is used for the exhaust outlet of residential areas, solving the problem of air backflow caused by strong winds and low air pressure, and avoiding the home from being filled with oil fumes and odors.
Outline dimension table of ventilator

Calculation parameters of ventilator
Number of ventilators=Building volume x Air exchange rate per hour ÷ Ventilation capacity of a single ventilator
Building volume=length x width x height
Hourly air change frequency: Based on the building's functional use, the hourly air change frequency can be determined by referring to Table 1 below.
The ventilation capacity of a single ventilator can be determined by referring to Table 2 below.
Table 1:

Table 2: Ventilation Capacity of a Single Ventilator