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1. 发明申请

US20100139788A1 Metallic Air Admittance Valve 审中-公开
标题翻译：金属空气导纳阀
公开(公告)号：US20100139788A1
公开(公告)日：2010-06-10
申请号：US12710121
申请日：2010-02-22
申请人： Derek J. Lackey
发明人： Derek J. Lackey
IPC分类号： F16K17/02
CPC分类号： E03C1/122 , A62C2/20 , E03C1/1225 , F16K24/06 , Y10T137/7897
摘要： A metallic air admittance valve has a tubular body with a valve chamber integral to one end of the tubular body. The valve chamber has a valve and an air inlet configured to permit the flow of air when the pressure within the valve is less than the pressure outside of the valve, but to prevent the flow of air when the pressure within the valve equals or exceeds the pressure outside of the valve. The tubular body and valve chamber are fabricated from metal and, therefore, do not emit noxious or toxic fumes when subjected to fire. Plumbing systems in commercial buildings may have metallic air admittance valves located within the plenum area of the building without presenting the risk of the distribution of toxic fumes throughout the building when the air admittance valve is subjected to fire.
摘要翻译：金属空气导纳阀具有管状体，其具有与管状体的一端成一体的阀室。阀室具有阀和空气入口，其构造成当阀内的压力小于阀外部的压力时允许空气流动，但是当阀内的压力等于或超过阀门时，防止空气流动压力在阀外。管体和阀室由金属制成，因此在受到火灾时不会发出有毒或有毒的烟雾。商业建筑物中的管道系统可以具有位于建筑物的增压室内的金属空气导纳阀，而不会在空气导纳阀遭受火灾时在整个建筑物内分布有毒烟气的风险。

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