Duplex Steel Water Pump

Duplex Steel Water Pump

The Big capacity split casing pump with high voltage motor is a single-stage double suction horizontal split centrifugal water pump. It is used totransport pure water and the liquid which physical and chemical nature is similar with water the maximum temperature isn't more than 80 ℃.

Product Details

Duplex Steel Water Pump

The The duplex steel split casing water pump is a single-stage double suction horizontal split centrifugal water pump. It is used totransport pure water and the liquid which physical and chemical nature is similar with water the maximum temperature isn't more than 80 . This series of pump is suitable for water supply and drainage in factories, mines and cities, power station, drainage and irrigation of farming, and kinds of hydraulic projects.

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Clean   water/Sea water


Duplex Steel Water Pump


68 m3/hr to 30000 m3/hr


6 m to 230 m


585 rpm/730rpm/980rpm/1450rpm/2980rpm

·Outlet Diameter:

150mm to 1600mm (6"up to 64")


Max.: 80


Diesel or Electric


4140 Mild Steel

·Shaft Sleeve

Cast iron/3 Cr13/40 Cr

·Pump Casing

Cast iron/Cast steel/SS   304/SS316


Cast iron/Cast steel/SS   304/SS316/Bronze

·Shaft seal

Mechanical seal/Packing gland   seal

·Seal ring

Cast   iron/ZCuZn16Si4/ZCuSn10Zn2


1.  Compact structure, beautiful outline, stable operation, low noise;

2. The shaft seal of water pump has fine mechanical seal and soft stuffing seal, which can be selected according to different condition by user;

3. The pump is direct drived by motor via resilient coupling, it can be drived by internal combustion engine if it is necessary;

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Duplex stainless steel 2205 is a duplex stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy. It has high strength, good impact toughness and good overall and local stress corrosion resistance.            

The advantages of 2205 dual phase steel are as follows:            

1. Because of the chromium content (22%), molybdenum (3%) and nitrogen content (0.18%), 2205 has better corrosion resistance than 316L and 317L in most environments.            

2. Compared with 316L and 317L austenitic stainless steel, 2205 alloy has better performance in pitting and crevice corrosion resistance. Compared with austenite, 2205 alloy has lower thermal expansion coefficient and higher thermal conductivity.           

 3. Compared with austenitic stainless steel, the compressive strength of 2205 alloy is twice that of austenitic stainless steel. Compared with 316L and 317L, the designer can reduce its weight. Alloy 2205 is particularly suitable for the temperature range of - 50 ° f / + 600 ° F, and can also be used at lower temperatures under strictly restricted conditions, especially for welded structures.            

4. On high-speed machine tools, the feed rate and cutting speed of 2205 alloy are the same as those of 316L. If carbonized rice is used, the cutting speed is reduced by about 20% compared with 316L, and the performance of machine equipment and its parts plays a key role.            

5. The duplex microstructure of stainless steel is helpful to improve the stress corrosion cracking resistance of stainless steel. Under certain temperature, stress, oxygen and chloride, chloride stress corrosion will occur in austenitic stainless steel. Because these conditions are not easy to control, the use of 304L, 316L and 317L is limited in this respect.

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