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    • 79. 发明公开
    • SPRINKLER ALARM TEST AND DRAINAGE DEVICE FOR FIRE PROTECTION SYSTEMS
    • 用于防火系统的喷淋头报警测试和排水装置
    • EP1354159A1
    • 2003-10-22
    • EP01996302.4
    • 2001-12-27
    • VICTAULIC COMPANY OF AMERICA
    • GIBB, John
    • F16K37/00F16K39/02G01M19/00
    • F16K39/024A62C37/50F16K37/00F16K37/0008Y10T137/5283Y10T137/8359Y10T137/86976Y10T137/8704
    • A combined alarm and test and drain valve (1) for a fire sprinkler system has specific modifications for draining the system and allowing for flow through a specifically sized orifice under conditions simulating the flow through a sprinkler head having the same orifice size. Fluid flow occurs alternatively under a first set of test conditions in a system alarm test mode of operation, and under a second set of fluid drainage conditions in a system fluid drainage mode of operation. A mechanical force is provided by a spring (8) and a hydraulic force is provided by a pressure diferential. When performing the system alarm test function, the valve (1) opens a first size outlet opening (9), and when performing the system drainage function, the valve (1) opens a second size outlet opening (2), larger than the first opening (9).
    • 用于消防水喷淋管道系统的组合报警和测试和排水阀(1)具有特定的修改,用于排放系统并允许在模拟通过具有相同孔口尺寸的喷头的流动条件下流过特定尺寸的孔。 在系统警报测试操作模式的第一组测试条件下以及在系统流体排泄操作模式下的第二组流体排出条件下,流体流动交替发生。 机械力由弹簧(8)提供,液压力由压力差提供。 当执行系统报警测试功能时,阀门(1)打开第一个尺寸的出口(9),当执行系统排水功能时,阀门(1)打开第二尺寸的出口(2) 开放(9)。