Francis HTF temperature exhaust fan is a series of products, performance of new fans between axial and centrifugal fans between the inlet silencer equipped with a current collector, the outlet is equipped with deflector, and is designed into the second gas, help to reduce the ambient temperature of the motor. Temperature exhaust mixed flow fan with high efficiency, energy saving, low noise, compact, light weight, small size, reliable operation, easy installation, can run at 300 ℃ environment for 1 hour following diagram (two-speed fan control panel) Almighty SA usually switch is in their own situation, the same as basically speaks usually exhaust fan application, both low-speed operation. When the fire generated, K closed, KAl power exhaust fan introduction, should the case exhaust fan in the situation, the normally closed contact KAl Chu soldiers cut off KMl exchanges winding circle, KMl off, KMl normally closed contacts closed, Communication is KM2, KM3 exhaust fan is turned on specifications, forcing the exchange to rapidly exhaust fan situation. When the duct temperature reached and the realization of 280 ~ C, a temperature valve fittings hinder fire behavior, close-valve, YE off, KM2, KM3 de-energized, the fan out of operation. When the all-around at the manual switch SA situation, as to complete the high and low exchange, although this time the fire control linkage signal at very IMPACT lose effect, but after the emergency control can be achieved and realized the same attempt. Exhaust fan for the selection of the main control parameters temperature, air flow, total pressure, efficiency, noise, electrical power, speed and shaft power. Exhaust fan at a temperature not higher than 85 ℃ conditions should be long-term normal operation. Exhaust fan shall ensure that: When the transmission medium temperature at 280 ℃ when continuous work 30min, and still continuously at medium temperature cooling to ambient temperature during normal operation. At rated speed in the work area, fans of the measured pressure curve with the description given in the curve should meet the following requirements: axial-flow exhaust fan at a predetermined flow rate, corresponding to the pressure deviation of ± 5 %. Centrifugal exhaust fan at a predetermined flow rate, corresponding to the pressure deviation of ± 5%. Exhaust fan Specifications | Chenyu air conditioning (certified) | exhaust fan by Wu Cheng Chen-yu air-conditioning Limited. Wu Cheng Chen-yu air-conditioning Co. (www.wccykt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioned in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu air conditioning better future.