测量范围：

详见参数表 m3/h

挡片式流量开关 FB31系列 原理，结构                                                                               机械式流量开关。内置弹簧支撑的档片，当流量达到预制值时，机械结构触发微动触发开关。                                                                          特点                                                                                    在线式安装，极小的压力损失，良好的重复性，抗污能力，通过旋钮实现的开关设定。机械部分与电子部分安全隔离。                                                                                                                                                                        应用                                                                                    气液两用型，工业自动化/  机械设备/ 空气压缩工业/ 制冷及空调      适用于直径≤50mm的管道。 技术参数                                                                                    ●设定范围:                        详见下表                                                        ●重复性:                           ±2.5%总量程                                                        ●接线方式：                   端子接线                                                        ●输出:                        机械开关 常开＋常闭 (250VAC,3A)                                                   ●耐压:                        16 bar（50bar可选）                                                    ●平均压力损失:         0.08bar（流量时）                                                        ●环境温度:                      -25…80℃                                                      ●介质温度:                      0…90℃ （-30…350℃)                                                       ●防护等级:                        IP54                                                        ●材料:                             主体：    316L不锈钢                                                                                          过程连接：黄铜合金 & 361L不锈钢                                                                       连接杆：    黄铜合金& 361L不锈钢                                                                       档片：       361L不锈钢                                                                                      密封：        NBR                                                                                    外壳：       消防级碳酸聚合物                                              性 能 概 述        FB31型                                                                                                                                                                          流量开关，黄铜（不锈钢）阀体。档片、波纹管、支撑架等内部元件为不锈钢。适用介质：水、乙二醇溶液、油、空气。工作压力50 bar.介质温度-30…350℃。电源：250V,3A。保护级别IP54.适用管径DN15~DN50