Duplex stainless steel marine water pump

Duplex stainless steel marine water pump

The pump is applicable to deliver those fluid without solid, particles or any other suspended stuff, water for instance.While oily and corrosive or solid contained fluid can be pumped by means of material modification, sealing methods, and cooling system adding.

Product Details

Duplex stainless steel marine water pump 

Type D/DG pump can deliver water without solid particle or the liquid which the chemical and physical feature are similar with water and temperature less than 105℃, it is suitable for delivering water in mine, boiler feed water, heat water and urban water project etc.


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Pump Specifications

·Type:

MD/MDG Multistage water Pump

·Capacity

3.75-840 m3/hr

·Head

19- 680 m

·Speed:

1480 r/min or 2950 r/min

·Temperature

Max.: 150 ℃

·Drive

Diesel or Electric Motor

·Shaft

45 # Steel

·Discharge casing

Cast iron /Stainless Steel

·Diffuser

Cast iron /Stainless Steel

·Impeller type

Closed Impeller

·Stage Casing

Cast iron /Stainless Steel

·Impeller

Cast Iron /Stainless Steel


Options for selection

Performance Data

Model

Capacity

Head
m

Speed
r/min

Motor Power
(Kw)

Impeller Dia
mm

Weight
kg

m3/h

L/S

D6-50x2

6.3

1.75

100

2950

11

198

140

D6-50x12

6.3

1.75

600

2950

55

198

340

D25-50x3

25

6.94

150

2950

30

196

220

D25-50x12

25

6.94

600

2950

110

196

409

D46-50x12

46

12.78

600

2950

160

210

475

D85-67x9

85

23.6

603

2950

250

235

1840

D120-50x2

120

33.3

100

2950

55

213

640

D120-50x9

120

33.3

450

2950

220

213

1200

D155-67x9

155

43.1

603

2950

450

235

1800

D360-40X10

360

100

400

1480

630

360

2550

D580-70X10

580

161.1

700

1480

1800

473

4120

D720-60x9

720

200

540

1480

1600

450

3900

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Impeller Shows

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The working principle of multistage centrifugal pump

The impeller drives the liquid to rotate at high speed, which makes the liquid produce centrifugal force and obtain energy. In this way, the liquid in the suction chamber at the front side of the first stage impeller enters the first stage impeller. After the impeller does work on it, it is thrown into the first stage guide wheel. After the energy is transferred by the first stage guide wheel, it enters the second stage impeller. The second stage impeller continues to work on it, then enters the second stage guide wheel, and so on, until it is thrown out from the last stage impeller, collected by the volute, and sent to the discharge outlet for discharge.


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Performance characteristics

Multi stage pump is mainly used for mine drainage, urban and factory water supply. Compared with piston pump, diaphragm pump and other reciprocating pumps, it can also pump larger flow. Multi stage centrifugal pump has high efficiency and can meet the needs of high head and high flow conditions. It has been widely used in petrochemical, chemical, electric power, construction, fire protection and other industries.

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