水流指示器安装在保护区内的喷淋管上，监测水流动作。一旦发生火灾，喷头会因温度过高而爆裂。此时，管道内的水会流向爆裂的喷头，流动的水力力量会推动水流指示器的作用(管道内也放置橡胶叶片)。水流指示器起水流监测的作用，不与其他设备连接。

The water flow indicator is installed on the spray pipe in the protection area to monitor the action of water flow. In case of fire, the nozzle will burst due to excessive temperature. At this time, the water in the pipe will flow to the burst nozzle, and the flowing hydraulic force will promote the function of the water flow indicator (rubber blades are also placed in the pipe). The water flow indicator plays the role of water flow monitoring and is not connected with other equipment.

水流指示器的叶片与水流方向垂直，喷头开启后引起管道中的水流动，当桨片或膜片感知水流的作用力时带动微动开关动作，接通延时线路，延时器开始计时。到达设定的延时时间后，叶片仍向水流方向偏转无法回位，电触点闭合，输出信号。当水流停止时，桨片和动作杆复位，触点断开，信号。

The blade of the water flow indicator is perpendicular to the water flow direction. After the nozzle is opened, the water in the pipeline flows. When the blade or diaphragm senses the force of the water flow, it drives the microswitch to act, connects the delay line, and the delay device starts timing. After reaching the set delay time, the blade still deflects in the direction of water flow and cannot return to its position, the electrical contact is closed and the signal is output. When the water flow stops, the paddle and actuating rod are reset, the contact is disconnected and the signal is eliminated.

水流指示器一般适用于湿式、干式、预作用、循环启闭式、自动喷水-泡沫联用系统中。水流指示器的功能，是及时报告发生火灾的部位。信号阀安装在水流指示器前的管道上，与水流指示器间的距离不宜小于300mm。水流指示器的大工作压力为1.2MPa。具有延迟功能的水流指示器延迟时间为2~90s。水

The water flow indicator is generally applicable to wet, dry, pre action, circulating open close, automatic water spray foam combined system. The function of the water flow indicator is to report the location of the fire in time. The signal valve shall be installed on the pipeline in front of the water flow indicator, and the distance between the signal valve and the water flow indicator shall not be less than 300mm. The large working pressure of the water flow indicator is 1.2MPa. The delay time of the water flow indicator with delay function is 2 ~ 90s. water

水流指示器的检查要求要求了解，比如铭牌清晰、有操作指示标识和产品说明书。有水流方向的性标识。各组件不得有机构松动、明显的加工缺陷，表面不得有明显锈蚀、图层剥落、起泡、毛刺等缺陷；水流指示器桨片完好。等等。

The inspection requirements of water flow indicator shall be understood, such as clear nameplate, safe operation indication mark and product manual. There is a permanent sign of the direction of water flow. All components shall be free from loose mechanism, obvious processing defects, and the surface shall be free from obvious corrosion, layer peeling, blistering, burr and other defects; The paddles of the water flow indicator are intact. wait.

为使系统维修时关停的范围不致过大而在水流指示器入口前设置阀门时，要求该阀门采用信号阀，以便显示阀门的状态，其目的是为了防止因误操作而造成配水管道断水的故障。当1只喷头启动或从末端试水装置处放水时，水流指示器应有信号返回消防控制中心。

In order to prevent the shutdown range during system maintenance from being too large, when a valve is set in front of the inlet of the water flow indicator, the valve is required to adopt a signal valve to display the status of the valve. Its purpose is to prevent the failure of water cut-off of the water distribution pipeline due to misoperation. When one sprinkler starts or discharges water from the end water test device, the water flow indicator shall have a signal to return to the fire control center.

川消水流指示器不动作或信号不正常，可能是由于桨片被管腔内杂物堵塞，调整螺母与触头未调整到位或电路接线脱落造成的，应采取相应的合理措施排除故障，如水流指示器管腔内的杂物，将调整螺母与触头调整到位，检查并重新将脱落电路接通等。

The failure or abnormal signal of Chuanxiao water flow indicator may be caused by the blockage of the paddle by the sundries in the lumen, the failure to adjust the adjusting nut and contact in place or the falling off of the circuit wiring. Corresponding reasonable measures shall be taken to eliminate the fault, such as removing the sundries in the lumen of the water flow indicator, adjusting the adjusting nut and contact in place, checking and reconnecting the falling off circuit, etc.

不同场所，不同防火等级以及不同楼层数的建筑单位，对于水流指示器安装的数量要求各有不同，所以使用时要具体情况具体选择。那么如果您想了解更多内容就来川消网站www.cx-fire.com咨询吧。

Building units in different places, different fire ratings and different floors have different requirements for the installation quantity of water flow indicators, so they should be selected according to specific conditions. If you want to know more, please visit www.cx-fire.com Consult. Com.