Beijing roof exhaust fan manufacturers _ _ Ruizhi roof exhaust fans air-conditioning equipment manufacturers

Test method: cutting impeller balance correction 7BIT 9101 in accordance with the provisions on balancing machine. Impeller speed test carried out according to the provisions 7BIT 6445. Mechanical operation test fire exhaust fan in the work book Jen confusion speed, continuous operation, the bearing temperature stable after 20min, measured bearing m liters and vibration. no more than a liter of 4nC, vibration detection 99 and m values ??should be consistent with the relevant provisions of 7Bfr 96V. Aerodynamic performance test aerodynamic performance test fire exhaust fan in accordance with the provisions GB + T 1236 will be. Sound Test noise measurement method according to CB / r 2888 requirements. Noise limits should be consistent with the provisions of 7BIT 8690. High temperature test rod into the press GA211 regulations. High performance crystal playing field required to achieve the specified 4.42. FRP roof fan was advanced roof ventilation equipment. Ventilation is mainly applied to hotels, restaurants, theaters, office buildings, laboratories, factories, residential and other buildings. Fans of the series have a beautiful shape, knot maple compact, high strength, light weight roof exhaust fan factory in Texas, corrosion resistance, anti-aging, low power consumption, low noise, reliable operation, easy installation and maintenance features roof exhaust fan manufacturers, Venturi tube using entrance tests Langfang roof exhaust fan manufacturers, compared with similar products, 30% more efficient. According to user needs my company can produce proof roof fan, its performance and the same number is the same. Beijing roof exhaust fan manufacturers _ _ Ruizhi roof exhaust fans air-conditioning equipment manufacturers to provide the Texas Air Conditioning Equipment Co. Ruizhi. Ruizhi Texas Air Conditioning Equipment Co. (www.rzktsb.com) Shandong Dezhou, heat, refrigeration and air conditioning equipment leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Swiss intellectual leadership in air-conditioning equipment with the staff warmly welcome all inquiries negotiations to create Ruizhi air conditioning equipment better future.