zsfm系列隔膜雨淋阀由主阀，水力警铃，压力开关，手动球阀，电磁阀，三通球阀，针阀及控制管路等组成。配以开式喷头、水幕喷头、闭式喷头及火灾报警控制系统即可组成相应的水喷雾灭火系统。具有结构简单、操作容易、安全可靠、安装维护方便等特点。失火时，雨淋阀开启，系统开式喷头一齐自动喷水灭火，不仅可以灭火处火源，而且可以同时自动向整个被保护的面积上喷水，从而防止火灾的蔓延和扩大。适用于易结冰或需重点保护的火灾危险性大的建筑物和场地。
zsfm
series diaphragm raining valve consists of main valve, hydraulicwarn-bell,
pressure switch, manual ball valve, solenoid valve, three-way ballvalve, needle
valve and control pipeline and, equipped with an opened shower,water curtain
shower, closed shower and fire warning control system, can formthe
corresponding water sprayed fog fire extinguishing system, itfeatures a simple
structure, easy, safe and reliable operation, convenientinstallation and
maintenance in case of a fire, the valve is opened, together withthe opened
shower, to automatically spray water to extinguish it, not onlyturning off the
fire source but also automatically spraying water onto the wholeprotected area
so as to prevent the fire from extending, suitable for the buildingand
playground easy to iced or required to be seriously proteeted andof a big fire
danger.
结构及用途structure and purpose
zsfm系列隔膜雨淋阀主阀采用隔膜将主阀分为上下两腔，上腔为控制腔。利用上下腔面积差产生水压力实现主阀密封。未失火时，三通球阀手柄向下，针阀、检修球阀、末端球阀为开启状态，电磁阀、手动球阀、排放球阀为开闭状态，压力表1灰进口压力，压力表2为0.
此时主阀为关闭状态。失火时，有三种控制方式控制主阀开启灭火。主阀开启后，压力进入压力开关盒水力警铃，水力警铃发出警声；压力开关向控制中心发出信号或开启消防泵。隔膜雨淋阀具有防复位结构，主阀开启10﹪后防复位装置自动启动，防止由于误操作使主阀回位。灭火后，切断传动管网，关闭电磁阀。、手动球阀和末端球阀即可关闭主阀。
结构合理、美观：雨淋阀控制管线选用优质铜管，合理配置控制元件，使控制阀门简单，明了。
控制、操作方便、可靠：三种控制方式确保主阀开启，且三种控制方式中任一种控制方式均能开启主阀。
内置
防复位装置：防复位装置内简化了控制配管。防复位装置的启动由主阀自动控制，复位操作简单。
the main valve of zsfm series
diaphragm raining valve divides itself into upper and lower twocavities, the
upper one is the control cavity, and utilizes/the are differencebetween the
cavities to produce water pressure to realize sealing of it, whenthere is no
fire, the tee ball valve’s handle is downward ,the needle valve,overhaul ball
valve are opened, the solenoid valve, manual ball valve anddrainage ball valve
are closed, the pressure gauge 1 shows the inlet pressure and thepressure gauge
2 shows zero. the main valve is closed then, there are threecontrol modes, in
case of a fire, to control the main valve to be opened to put outthe fire
,after the main valve is opened, pressure steps into both pressureswitch and
hydraulic warn-bell, the latter sends out a warning sound and theformer sends
out a signal to the control center or to open the fire-fightingpump, this valve
is of a reset resisting structure, which automatically opens afterthe main
valve is opened by 10﹪to prevent it from reset due to wrongoperation, after the
fire is put, the main valve can be closed just by cutting off thedriving pipe
network, closing the solenoid valve, manual ball and final-endvalve.

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