1.There is protector installed in the motor,and the switch would turn off automatically when the voltage of main is too low or three-phase main is imbalance to protect the motor from being badly damaged;
2.Gear is made if chromium-manganese-titanium alloy steel and immersion of carbon and nitrogen on the surface,which can prolong the life span greatly;
3.The patent technology the non-welding assembled impeller can run stably without eccentric and easy carried;
4.According to various environment and consumers requirements,we have developed engineering plastics impeller and stainless steel impeller,which can ensure the long time use in the seawater or the high corrosive industral wastewater without frequent replacing the impellers or painting;