Chong Henderson brand! , [] Two-speed exhaust fan, exhaust fan Zalantun provided by Horizon Air conditioning equipment. We are a Texas Air Conditioning Equipment Co., Ltd. Hongxin (www.hxktsb.com) located at: Shandong Dezhou specializes in: New air unit fresh air ventilator fan air pressure delivery outlet damper chassis outlet XGF (HTF) series of fire.. temperature exhaust fan characteristics: high temperature performance, high efficiency, easy installation, reliable operation (to produce a single-speed, two-speed, variable frequency stepless, roof exhaust fan fire and explosion Fire-type special fan) and get the Fire product license. Purpose: tall buildings, ovens, tunnel boxes, underground garage and specialty industrial and mining enterprises and other fire temperature exhaust, exhaust. Specifications: Fan diameter: Φ350 ~ 1500mm Airflow: 3350 ~ 93800 m3 / h Pressure 280 ~ 819Pa. Dezhou, Shandong Hongxin Air Conditioning Equipment Co. exhaust fan to remind everyone to pay attention to maintenance and storage: under environmental conditions from time to time to supplement or replace the exhaust fan bearing grease (motor closed during the life of having to replace bearings in grease) double speed exhaust fan, the fan in order to ensure good lubrication during operation, refueling times less than 1000 hours / closure of the bearings and motor bearings, refuel with zl-3 lithium base grease filled bearing inner and outer rings of 2/3. prohibited run short of oil.