Best working point, large flow , high efficiency. Electric pump over-current components using high-strength engineering plastic, with high-quality wear-resistant mechanical seal; Three phase motors apply for gasket and tread to avoid impeller reversal and loose; The stator is applied by molding process with resistance. Moisture. heat security,90 frame equipped with specialized plastic mounting bracket pump apple for low noise standard motor. Single-phase with thermal protector from TI, USA; Motor is with high temperature bearings, long operating life with reliability and durability; Complete separation of water and the axis, safe and reliable ; Insulation class F, Protection IPX5. The pump obtained the certification of CE.