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Submersible Column Pump
Submersible Column Pump

Submersible Column Pump

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.
Product Detail

Submersible axial flow and mixed flow pumps

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.


 Hub-vane type


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

Typical Structures
Submersible Column Pump Structure


Working range

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

Main parts

Material

Standard

Variants

GB

DIN

ASTM

Suction bell

Grey cast iron

HT250

EN-GJL-250

A48-CL35

Ductile cast iron, Cast steel

Impeller housing

Grey cast iron

HT250

Ductile cast iron, Cast steel

Discharge bowl

Grey cast iron

HT250

Ductile cast iron, Cast steel

Motor housing

Grey cast iron

HT250

EN-GJL-250

A48-CL35

Ductile cast iron

Impeller

Stainless steel 304

06Cr19Ni10

G-X6CrNi-189

A743-CF-8

Ductile cast iron, Cast steel, Stainless steel 316, Duplex SS
One-piece casting

Wear ring

Stainless steel

2Cr13

X20Cr13/1.4021

A276-420

Bronze, SS304

Shaft

Stainless steel

2Cr13

X20Cr13/1.4021

A276-420

Carbon steel, duplex SS

Bearings

NSK/SKF

FAG, Chinese reliable brands

Mechanical seals

Burgmann

Chinese reliable brands

Screws, bolts & nuts

Stainless steel 304

A2-70

X5CrNi-189-1.4301

A276-304

Stainless steel 316

O-rings

NBR rubber

Cable length

10-meters, submersible

As per requirement



Applications

Submersible Column Pump 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
Discharge bowl support at column pipe
1.jpgConcrete well installation
Suction bell supportSuction bell support

Installation methods

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