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DG Dredging pump

1. This series of pumps is a single-stage single suction cantilever horizontal structure. According to the size of the outlet pressure, the dredging pump mechanism is divided into high and medium structures in the coming year: single pump shell and double pump shell; According to the transmission, it can be divided into two typical structures: self-bracket type and pump box type (i.e. Gearbox pump is integrated) There are two types of self-bracket lubrication: grease lubrication or rare lubrication.
2. The double pump casing design is safe and reliable. When the sheath (inner pill) is used until it is close to wear through and the sheath (inner pill) is broken, the pump cabin will not leak
3. Single shell dredging pump is light in weight Small in size This series of you can dive underwater to work at different diving depths, which can be used according to different requirements Bearings are well-known brands at home and abroad bearings trouble-free long working time.
4. DG dredging pump adopts front disassembly structure, which is simple to disassemble and facilitate maintenance; At the same time, according to the structural characteristics of each component, it is equipped with special disassembly tools to facilitate the disassembly and assembly of the screw connection between the impeller and the shaft, and an impeller disassembly ring is arranged to facilitate the disassembly and assembly of the impeller.

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Parameters and Selection

DG250X200L

DG250X200MS

DG300X250L

DG350X300L

DG350X250M

DG450X300M

DG450X350M

DG500X450L

DG600X450MS

DG650X550L

DG650X500MS

DG700X600MS

DG760X700MS

DG800X700L

DG800X750MS

DG900X800L

DG900X850MS

DG1000X900MS

DG1050X950L

DG1200X1000MS

Model

DG250X200L

Capacity

340-870 m³/h

Head(TDH)

10-45 m

Allowable Max. Power

Speed

900 r/min

NPSH

<4 m

Max. Efficiency

65-70 %

Model

DG250X200MS

Capacity

520-1000 m³/h

Head(TDH)

38-65 m

Allowable Max. Power

Speed

850 r/min

NPSH

<4 m

Max. Efficiency

70-74 %

Model

DG300X250L

Capacity

500-950 m³/h

Head(TDH)

10-42 m

Allowable Max. Power

Speed

700 r/min

NPSH

<4 m

Max. Efficiency

65-68 %

Model

DG350X300L

Capacity

700-2400 m³/h

Head(TDH)

10-38 m

Allowable Max. Power

Speed

650 r/min

NPSH

<4 m

Max. Efficiency

74-78 %

Model

DG350X250M

Capacity

500-1500 m³/h

Head(TDH)

35-68 m

Allowable Max. Power

Speed

600 r/min

NPSH

<4 m

Max. Efficiency

74-78 %

Model

DG450X300M

Capacity

900-2500 m³/h

Head(TDH)

40-70 m

Allowable Max. Power

Speed

550 r/min

NPSH

<4 m

Max. Efficiency

76-80 %

Model

DG450X350M

Capacity

1200-3500 m³/h

Head(TDH)

40-70 m

Allowable Max. Power

Speed

550 r/min

NPSH

<4 m

Max. Efficiency

71-75 %

Model

DG500X450L

Capacity

1200-3800 m³/h

Head(TDH)

10-43 m

Allowable Max. Power

Speed

48 r/min

NPSH

<4 m

Max. Efficiency

78-80 %

Model

DG600X450MS

Capacity

1500-4200 m³/h

Head(TDH)

40-76 m

Allowable Max. Power

Speed

500 r/min

NPSH

<4 m

Max. Efficiency

80 %

Model

DG650X550L

Capacity

1800-5500 m³/h

Head(TDH)

10-48 m

Allowable Max. Power

Speed

420 r/min

NPSH

<4 m

Max. Efficiency

83 %

Model

DG650X500MS

Capacity

2000-6000 m³/h

Head(TDH)

35-73 m

Allowable Max. Power

Speed

440 r/min

NPSH

<4 m

Max. Efficiency

85 %

Model

DG700X600MS

Capacity

2500-8000 m³/h

Head(TDH)

30-76 m

Allowable Max. Power

Speed

470 r/min

NPSH

<4 m

Max. Efficiency

85 %

Model

DG760X700MS

Capacity

2800-10000 m³/h

Head(TDH)

30-76 m

Allowable Max. Power

Speed

380 r/min

NPSH

<4 m

Max. Efficiency

81 %

Model

DG800X700L

Capacity

3000-8500 m³/h

Head(TDH)

10-43 m

Allowable Max. Power

Speed

380 r/min

NPSH

<4 m

Max. Efficiency

81 %

Model

DG800X750MS

Capacity

5500-14000 m³/h

Head(TDH)

34-74 m

Allowable Max. Power

Speed

349 r/min

NPSH

<4 m

Max. Efficiency

81 %

Model

DG900X800L

Capacity

4000-13000 m³/h

Head(TDH)

10-40 m

Allowable Max. Power

Speed

280 r/min

NPSH

<4 m

Max. Efficiency

85 %

Model

DG900X850MS

Capacity

7000-17000 m³/h

Head(TDH)

34-74 m

Allowable Max. Power

Speed

330 r/min

NPSH

<4 m

Max. Efficiency

85 %

Model

DG1000X900MS

Capacity

8000-20000 m³/h

Head(TDH)

34-74 m

Allowable Max. Power

Speed

175 r/min

NPSH

<4 m

Max. Efficiency

85 %

Model

DG1050X950L

Capacity

7500-17000 m³/h

Head(TDH)

10-38 m

Allowable Max. Power

Speed

258 r/min

NPSH

<4 m

Max. Efficiency

85 %

Model

DG1200X1000MS

Capacity

8000-28000 m³/h

Head(TDH)

24-75 m

Allowable Max. Power

Speed

290 r/min

NPSH

<4 m

Max. Efficiency

85-87 %

Application and Reference

River dredging, reservoir desilting, coastal land reclamation, deep-sea mining, etc.

Typical Application:

★ River dredging
★ Reservoir desilting
★ Coastal reclamation
★ Deep sea mining

DG Dredging pump structure

DG 3D Structure

Bearing Assembly


Packing Seal	Expeller Seal

This series of pumps are single-stage single-suction cantilever horizontal structures. According to the size of the discharge pressure, the dredging pump has two structures: single pump casing and double pump casing; according to the transmission mode, it can be divided into two typical structures: self-supporting bracket type and pump box integrated type (i.e. gear box and pump are integrated into one). There are two lubrication methods for the self-supporting bracket type: grease lubrication or thin oil lubrication.

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