Scope: MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan is a new fan between axial and centrifugal fan between having high centrifugal fan pressure, axial fans much traffic, high efficiency, energy saving low noise, Changsha exhaust fan, and easy installation. MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan, novel design, compact structure, small size, light weight, easy to install, and old-fashioned compared to centrifugal fan can save 20% When speed is less than 2000rpm, exhaust fan selection, noise below 75dB HTF (A) fire temperature exhaust axial fans using advanced CAD-aided design systems, is the more optimized design developed new products, with high efficiency flat curve characteristics conducive to energy conservation. Optional molded axial flow impeller, built high temperature motor, arranged a special motor cooling system. Use two-speed motor direct-drive, to one machine (that usually send row when high-temperature exhaust ventilation and firefighting), arranged after the electrical control box can be remotely controlled automatically. High temperature performance, high efficiency, small size, easy installation (horizontal, vertical, lifting can be), etc., are widely used in high-rise buildings, drying room, underground garage, subway, tunnels and other occasions to send fire smoke and exhaust ventilation ??? Press GA211-1999 Fire fan high temperature test methods, roof exhaust fans, can run at 400 ℃ more than 100 minutes of continuous high temperature, medium temperature at 100 ℃ continuous operation 20 hours / time is not damaged, it has been the major cities in the country approved for use by the fire department. Fans of the series may use the occasion of the installation requirements, peripherals silencer box, made HTF (A) -X box-shaped exhaust fan the fire. Due to limitations in the basement by the subsurface conditions and space, high-temperature exhaust fan, to meet the air flow and pressure conditions and other parameters, fire protection systems and smoke exhaust ventilation is usually used in combination, so we in the underground garage dual speed fan, which is the same fans and the same duct. In general, as the exhaust ventilation fan running at low speed use, when a fire, fans immediately becomes the high-speed operation, used as a fire exhaust fan. Such a machine with two, not only to reduce the construction cost, space saving, more importantly, greatly improving the efficiency and reliability of the equipment. If the exhaust and smoke control are completely separate the two systems, and fire exhaust fan is only put into operation when the fire occurred, rarely used, then the failure is difficult to be discovered and get timely maintenance, and when the real fire , but also difficult to ensure smooth operational. The two-speed fan just to overcome this shortcoming, usually as an exhaust fan running, problems can be discovered in time and be repaired, always in a good state of readiness. Changsha exhaust fan | Chenyu air conditioning | exhaust fan price offered by Wu Cheng Chen-yu air-conditioning Limited. Changsha exhaust fan | Chenyu air conditioning | exhaust fan price is wucheng Chenyu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: sand manager.