Feature/特征: 

Automatic operation by foat switch (EA series only)/通过浮控开关自动运行(EA系列)

 Dewatering very low water level/残余水量低 Rust-proof materials/耐腐蚀材料 

Application/应用: 

Fountain, clean water drainage application/喷泉，清水排水系统 

Water supply from wells and rivers/水井和河流向上供水

ce="宋体" >应用: Hot water heating systems of all kinds/热水采暖系统 Industrial circulation systems/工业循环系统 Cold water system and air-conditioning systems/冷水和空调系统 Roof tank to water tap transfer(ST20/11 with fow switch)/屋顶水箱向下供水增压(ST20/11配流量开关)