Use; 1.MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan for tunnels, underground garage, metallurgy and other high-temperature exhaust, in the case of fire, can quickly exhaust cooling assistance firefighters into the disaster area fire, fire safety is an essential facility. 2, the type of gas transportation: air and other unnatural harmless, fire exhaust fan, for just non-corrosive gases, in special circumstances, the choice of explosion-proof Francis fan. 3, impurity gases inside: adhesive materials are allowed in the gases, two-speed exhaust fan, contained in the dust and hard particles is not greater than 150mg / m3. 4, the temperature of the gas: MHL3-2A, MPYH-14A (MHTFL exhaust fan in the specification; A sound level noise limits should be consistent with the provisions of JB / T8690-1998 the exhaust fan can be an ordinary steel centrifugal fan. or dedicated exhaust axial fan. exhaust fan specifications as "fire protection design of tall buildings" in the regulations. The minimum air volume exhaust fan 7200m / h, the maximum air flow should not exceed 60000m / h (refers to a smoke partition The maximum amount of wind). exhaust fan capacity should be required to increase airflow value of not less than 10% to 20% of the surplus amount. smoke pressurized exhaust fan pressure value shall be calculated loop system is the most unfavorable, and to ensure that in the stairwell and pressure values ??of 40 ~ 50Pa. front room, combined with residual pressure value before room, fire elevator room, refuge floors and other interior 25 ~ 30Pa. fire exhaust fan should be consistent with the current standard JB / T10281 . -2001 "fire exhaust fan technology" exhaust fan system should set up a separate location should exhaust fan in the same layer or upper .HTF series of high temperature fire smoke exhaust area dedicated fan Overview:. HTF series of fire temperature exhaust fan with excellent performance, high temperature performance, high efficiency, covering less than the centrifugal fan, and convenient installation. HTF series fire temperature exhaust fan of "national fixed fire extinguishing systems and fire-resistant component quality inspection center" qualified, Nujiang exhaust fan, its performance has reached domestic leading level high-temperature performance: The fan test conforming GBJ45-82 Fire Code standards, establish higher standards of corporate internal control to ensure that the system can run continuously under high temperature 300 ℃ condition more than 60 minutes at a temperature of 100 ℃ for 20 hours / time is not damaged, is widely used in the senior civil oven, underground garage, tunnels and other occasions. Nujiang exhaust fan _ _ Chenyu air conditioning exhaust fan fire by the wucheng Chenyu Air Conditioning Equipment Co., Ltd.. Nujiang exhaust fan, air conditioning _ _ Chenyu fire exhaust fan 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 Tel This page or image on to obtain the latest information, contact: sand manager.