[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - fan] fan noise detection and fan vibration detection: vibration when the fan started to work a small bearing parts, but with longer, dust inside the fan operating time unevenly attached to the impeller, the gradual destruction of the fan balancing, and gradually increase the bearing vibration Axial roof fan, (the maximum allowable value represents the value of the amplitude of vibration once reached the maximum allowed fan 11mm / s as follows ) price roof fan, the fan must be shut down to repair (remove dust accumulation, redo balancing). Because this time is very dangerous, the user must not be forced to use. When approaching the danger fan vibration value, there will be vibration meter alarm. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - no power fan None powered fan is to promote the use of natural principles of natural wind speed of rotation of the turbine fan roof fan installation, and use of indoor and outdoor air convection, any parallel to the direction of air flow, accelerating and converted to bottom vertical roof fan air flow to improve a device for indoor ventilation effect. The fan no electricity, no noise, long-term operation. Based on air flow and air flow principles of natural law, is set at the top of the roof of rationalization can quickly exhaust gas indoor hot and dirty, improve the indoor environment. Fiberglass roof wind levels | Langfang roof fan | Tianjin Jinzhong Ji wind machines provided by the Tianjin Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!