WQ series pump consists of pump, mechanical seal and motor. The pump is located at the bottom of the pump and uses a centrifugal impeller. The single-phase positive three-phase motor is on the upper part of the pump, and seals are used where the pump and motor are combined, that is, double-sided mechanical seals, and "O" rings are applied to all static joints. This series of pumps has the advantages of easy setting, high lift, high efficiency and convenient operation. The seals of the key parts of the pump are entirely made of high-quality metal alloy and emery.