Submersible axial flow and mixed flow pumps, also known as submersible column pumps because of its typical installation method, are widely used in flood control and ideal for other heavy-duty pumping applications.

Pump section shares same single shaft with submersible motor, to make it an integrated pump set, and is well sealed to operated safely and reliably in water.

Pumps are installed inside a steel column pipe or concrete well, either discharge bowl supported or suction bell supported. In the opinion of China pump industry, bowl supported is preferred as center of gravity of pump is closer to support surface, which means more stable during operation.

Impeller of submersible axial flow pump can be Hub-vane type, which is easy to satisfy different duty points by adjusting vane angles of each size pump.

Single-piece casting, which ensures good performance and avoids vane loose during operation.

Typical Structures

Working range

Small and medium sized DN300-1400

Capacity: 500-32,000 m³/h

Head: up to 23 m

Large sized DN1600-2400

Capacity: 25,000-86,000 m³/h

Head: up to 10 m

Material construction

Standard

Applications

Flood and storm water control;

Large volume drainage and irrigation;

Raw water intake;

Transfer of liquids in large-scale municipal sewage treatment plants;

Circulation of large quantities of water;

Water level control in coastal and low-lying areas;

Filling and emptying of dry docks and harbour installations;

Filling or emptying of reservoirs.

Installation methods

Discharge bowl support at column pipe

Concrete well installation

Suction bell support