China tough and low cost Stainless steel roof turbine ventilation fan without power for chimney whol

Product Description

general industrial equipment greenhouse/factory/farm ventilation exhaust fan roof fan with certificate

No-power Roof Turbine Ventilator is to make use of the air free convection that natural wind power and the interior outside temperature difference bring about, the effect driving a turbine to rotate making use of centrifugal force and negative pressure thereby discharge the interior stale hot-air , It makes the fresh air flow in, thus the purpose of cleaning air can be reached.

Grade 201 stainless steel :

Grade 304 stainless steel :

Product's Features:

1). No maintenance or operating costs,
2). Water and dust proof,
3). Improves air quality,
4). Improves productivity.
5). The structure of the high quality,
6). The precision of the running device,
7). Green environmental protection ventilation equipment
8). Applicability widely. All kinds of industrial factory building contour plate light steel structure roofing, concrete roof can also be installed. And there's no need to support, installation is convenient. roof air ventilator