1.HTF-Ⅰ, HTF-Ⅱ represents pressure type fire temperature exhaust fan, leaf type axial flow type: HTF-Ⅰ (single speed) and HTF-Ⅱ (double speed) of two; HTF-Ⅲ, HTF -Ⅳ representation pressure fire temperature exhaust professionals; 2, HTF-X as a silencer fire temperature exhaust fan, the user can choose according to the actual needs of different kinds; 3, HTF-W series rooftop fire temperature exhaust fan Users can choose according to actual needs retardant fiberglass hood or steel hood; 4, HTF-D low pressure type fire temperature exhaust fan; 5. Special note: GYF and HTF series fan is a similar product. Scope; (1): the fan connecting pipeline and installed air conditioning inside, noise is less than 70dB (2): Alternative low centrifugal fan 2000pa below, can be widely used in industrial, civil and other ventilation and dust. MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan only has the HL-3-2A Ventilator function, but also the ambient temperature in the normal operation at about 280 ℃ 0.5 hours for both ventilation, there are high-temperature exhaust can play a dual role, applicable to underground tunnels, underground shopping malls, underground warehouses, and other fire-fighting facilities, and the user's choice by the institute. How it works: the usual two-speed high-temperature exhaust fan at low speed in order to meet the exhaust air flow, when a fire occurs, the temperature exhaust fan in the cabinet under the joint control of the role of automatic high speed exhaust fan to meet the needs smoke, meanwhile, occurred Fire smoke partition exhaust pipe smoke damper and smoke damper does not move up and exhaust ventilation pipes were up wind exhaust fan principle, automatic smoke damper smoke partition in other linkage control cabinet automatically shut down the role when the flue gas temperature reaches 280 ℃, automatic smoke damper will automatically close, exhaust fan and make the fan automatically stop. storey 3.5 m, a total of five smoke partitions, fire design uses air conditioning and ventilation systems and smoke exhaust system combined approach. selected two-speed high-temperature exhaust fan exhaust fan Chen Yu, high speed exhaust volume of 63500 m3 / h, low exhaust volume of 35400 m3 / h, fresh air and the wind up air supply unit is 32000 m3 / h, all with automatic smoke damper smoke fire damper. exhaust fan principle, Chen Yu-conditioned (certified), exhaust fan by Wu Cheng Chen-yu air-conditioning Co. . 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.