Products; 1.HTF type fire temperature exhaust axial fans, the basic form of axial-flow structure, the use of high temperature motor, arranged a special motor cooling systems, products by the National Fire Equipment Quality Supervision and Inspection Center by GA211-1999 "high-temperature exhaust fan fire test method" test temperature at medium temperature 300 ℃ high temperature over 60 minutes of continuous operation, 100 ℃ temperature conditions under continuous operation 20 hours / times without damage, can dual exhaust ventilation. 1.2 Installation divided by Product Category: Horizontal and roof type (W type). Divided by the amount of wind pressure: atmospheric model have type Ⅰ, Ⅱ (double speed); medium-pressure (for mixed flow impeller) has Ⅲ, Ⅳ type (double speed); there is low pressure type D1, D2 type. By the governor points: single-speed, two-speed, frequency (frequency conversion motor with inverter controller, the implementation of frequency control, in order to adapt to different conditions, it is recommended to adjust the frequency locked in 25Hz ~ 50Hz). 1.3. In order to meet the requirements of different places of noise, the fan can be equipped with different lengths muffler two-speed exhaust fan, can also be made sheathed (housing silencer). 2, HTF-type fire temperature exhaust axial fans working conditions Operating temperature: -20 ℃ ~ + 60 ℃ (continuous operation); temperature: 100 ℃ (continuous operation 20 hours) exhaust fan, 300 ℃ (continuous running 60 minutes); temperature: <90%; medium conditions: air (dust content of no more than 100mg / m3); Power supply: three-phase, 380V / 50Hz; 3, HTF-type fire temperature exhaust fan can be applied axial fans Widely used in high-rise construction, oven, underground garage, tunnels and other places smoke ventilation. Scope: MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan is a new fan between axial and centrifugal fan between, it has a high centrifugal fan pressure, axial fans big flow, high efficiency, energy saving and low noise, and easy installation. MHL3-2A, MPYH-14A (MHTFL-14A) Francis htf two-speed high-temperature exhaust fan exhaust fan fire, novel design, compact structure, small size, light weight, easy to install, compared with the old-fashioned centrifugal fan saving 20%, when the speed is less than 2000rpm, noise below 75dB htf exhaust fan fire, Chen Yu-conditioning (certified), Wulanchabu exhaust fan provided by Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.