Semi-open impeller, high efficiency and energy-saving. The motor can be cooles efficiently by water sibe-flowing. And the pump may work out of water for a long time. 　　
Widely used in city build, industry and environment protection. 　　
Tied construction, small and light, lower noise, operating stability, capability reliable. 　　
Fix mode: immobility, automation 　　
The motor is equipped with heat-protector to monitor and protect the pump automatically.