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    • 1. 发明申请
    • SPRINKLER ALARM TEST AND DRAINAGE DEVICE FOR FIRE PROTECTION SYSTEMS
    • 用于防火系统的SPRINKLER报警测试和排水装置
    • WO2002061315A1
    • 2002-08-08
    • PCT/US2001/049652
    • 2001-12-27
    • VICTAULIC COMPANY OF AMERICAGIBB, John
    • GIBB, John
    • F16K37/00
    • 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).
    • 用于消防喷淋系统的组合报警和测试和排放阀(1)具有对排水系统的特定修改,并且允许在模拟通过具有相同孔口尺寸的喷洒头的流动的条件下通过特定尺寸的孔流动。 流体流在系统报警测试操作模式中的第一组测试条件下和在系统流体排放操作模式的第二组流体排放条件下交替发生。 由弹簧(8)提供机械力,通过压力差提供液压力。 当执行系统报警测试功能时,阀门(1)打开一个第一尺寸的出口(9),当执行系统排水功能时,阀门(1)打开一个第二大小的出口开口(2) 开(9)。