1, the amount of air leakage is low, airtight performance. 2, the electric current consumption of small open 3, corrosion resistance strong damper legend symbols, long service life. (Made of stainless steel type) 4, the actuator drive flexible. Feedback, interlock signal accurately. Products in full accordance with the national standard, good quality damper Which standard production line, advanced equipment, technology and stability. Our main domestic large enterprises do OEM OEM production, while direct customers located in the central air-conditioning and fire ventilation equipment installation company, according to user needs, design and manufacture of various types of specifications ventilation, central air-conditioning end and fiberglass products. Product Name: Manual air flow control valve Product Code: FT Description: Hand off the multi-leaf valve in the air conditioning and ventilation ducts, the installation of this product, you can control the air volume through the valve opening angle of the blade. Manual off (single) multi-leaf valve may be mounted on a square or rectangular cross section duct, through the four-link mechanism connected to the handle steering angle of the blade off the multilayer air volume control to enhance conditioning effect. Air flow control valve installed in the air conditioning and ventilation ducts closed by adjusting the valve blade angle control air volume through the four-bar linkage connected to the handle steering angle of the blades off the multi-control demeanor, blades can be adjusted to any range fixed, cucumbers xgf valve exhaust fan wheel rotation, easy adjustment, manual off (single) multi-leaf valve specifications, dimensions, users can request non-standard manufacturing exhaust fan, large cavity made of multi-format manual For the (single) multi-leaf valve installed in a square or rectangular cross-section duct. Fire exhaust valve manufacturers / price installed in each branch pipe end mechanical exhaust system (flue gas suction) at usually was closed and meet the requirements of air leakage, fire or need to open the manual and electric smoke, smoke from the role valve. Port valve with decorative or ornamental treatment had called exhaust port [1]. General building exhaust system and the need for personnel to confirm the operation, so no exhaust valve temperature sensing devices. Usually installed in the upper part of the building space or ceiling area. Exhaust valve interlock with fire detectors, fire smoke detectors in particular interlocks, by Discovery flue fires early to open the exhaust valve Blower, make smoke, become driven by an electric motor or solenoid body Automatic valves. Two exhaust valves are generally used for work on the exhaust duct system, usually normally closed, smoke detector alarm signals emitted when the fire, the fire control center DC24V voltage through open exhaust valve, the valve can be manually opened, manually reset. After the valve is opened to emit electrical signals to the fire control center. According to requirements, but also with other devices interlock. Exhaust valve and outlet ordinary Grille or plate combination, may constitute exhaust vent. xgf exhaust fan exhaust fan _ _ Anhui Hefei exhaust fan by fan Air Conditioning Equipment Co., Shandong GREAT. Air Conditioning Equipment Co., Ltd. Shandong GREAT fan (www.greatfengji.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement and innovative ideas will lead you hand into the brilliant GREAT for a better future!