The opening angle of the fire door affects the clear width of evacuation on the one hand, on the other hand, it also directly affects the clear width of the evacuation path. Although the current fire doors and conventional evacuation doors can be guaranteed to open normally at 120° (or even 150°), 90° should be adopted when determining the maximum clear evacuation width.
Repeated opening should not affect the reliability of the evacuation door. Although the current fire doors and conventional evacuation doors can usually be guaranteed to open normally at 120° (or even 150°), the opening angle of the fire door reliability test is only 70°, and some evacuation doors open at too large an angle Time will affect product quality. Therefore, it is relatively reasonable to determine the opening angle of the evacuation door at 90°, and this angle also effectively utilizes the effective clear width of the evacuation door.
Located in a port city, China Dalian Golden House Door & Window Manufacture Co., Ltd. is a large-scale enterprise specialized in producing American-Standard steel fire doors and wooden fire doors. Our company produces 50000 sets of steel fire doors and 20000 sets of wooden fire doors every year. Our fire door products have passed UL Approvals AND FM Approvals and INTERTEK(WH) approval successively. Moreover, our fire door products can be sold directly to more than 20 countries over North America, Latin America, Middle East and Africa.
We respond to tendency of international fire doors market, and provide good service combining foreign clients' needs, with an aim of expanding a wider international market. In the future campaign for world market, our foreign trade elites will achieve better sale performance through unremitting efforts and dedication.
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