大开关容量，***大耐压250V交流电源,***大电流5A测量液体或者气体的机械式流量开关，档板式设置***的电气元件和机构***的重复性耐污，耐脏，低压力损失通过螺纹精密调节开关可选型号及管径：G1/2"DN15UR3K-015GK065UR3K-015GM065UM3K-015GM070UM3K-015GK070G3/4"DN20UR3K-020GK085UR3K-020GM085UM3K-020GK100UM3K-020GM100G1"DN25UR3K-025GK150UR3K-025GM150UM3K-025GK180UM3K-025GM180G1+1/4"DN32UR3K-032GK270UR3K-032GM270UM3K-032GK300UM3K-032GM300G1+1/2"DN40UR3K-040GK440UR3K-040GM440UM3K-040GM500UM3K-040GK500G2"DN50UR3K-050GK690UR3K-050GM690UM3K-050G***30UM3K-050GK930)