Description: Electric multi-leaf delivery outlet usually used to install the new floor staircase in the front room, smoke shaft wall, can also be installed in the pipe side exhaust system or air terminal. The main functions and characteristics usually normally closed, electric, manual open, the starter signal output. Electric multi-leaf delivery outlet closed manually reset. 280 ℃ temperature sensor operation, the valve is closed again. The use of thin body, reduce operating box size, increase the effective area of ??the ventilation exhaust. Wanda With a strong R & D capabilities and specialized manufacturing scale, based on changes in the market continues to continuous technological innovation and product innovation. At present, the production of smoke control systems, central air-conditioning system two series of products, product variety, complete specifications, covering all types of products, is currently the industry's most complete varieties and models of international manufacturers.