No power roof fan

1. High-quality structure
Rigid sphere shape structure, permanently lubricated upper and lower ball bearings to ensure long life without maintenance, no need to replace the zero
Cases, the U.S. PEER, UBC, and Japan NSK high-precision bearing system fully closed absolutely excellent quality assurance.
2, the operation of sophisticated equipment
UBC high-precision bearing system fully closed, highly heat-resistant synthetic grease lubricant for the bearings of the best that can permanently self-lubricating, non-
Take care, even if wind breeze in less than 2 km, it is also self-operation.
3, green ventilation
Use of natural wind-driven principles, not the use of motor power, to avoid the cost of running electricity-free, non-stop self-turbine ventilator
Rotation, so silent no noise when running.
4, wide applicability
Diameter with a unique angle for a variety of industrial plant light steel contour plate roof, concrete roof can be safe
Installed. And does not require support, installation and convenient

No power roof fan installation and principle

Heat down before installation can only be discharged by the gap