Submersible Sand Pump are mainly composed of three parts: pump head, motor, and combined seal. The flow-through parts of the sand pump (including pump body, pump cover and impeller) are all made of wear-resistant materials. The water pump adopts a unique double short-face alloy external mechanical seal, changes the method of impeller anti-reverse rotation and installs a stirring auxiliary impeller, which effectively stirs the sludge deposited on the bottom of the water into turbulent flow and discharges it out. The product is well selected, advanced in structure, wide in flow channel, and strong in passing force.