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WNQ Submerged Dredge Pumps

Size: 12" to 40" Pump
Capacity: 600-25000 m3/h
Head: 20-78 m
Handing solids: 0-350mm
Concentration: 0%-70%
Materials: Hyper chrome alloy, Cast iron, Stainless steel etc

Construction of dredging pump
dredging pump construction component
Main Part Number At The Drawing
1 – Shaft 2 – Frame 3 – Mechanical Seal Assembly 4 – Connecting Plate
5 – Rear Liner 6 – Pump Casing 7 – Cover Plate 8 – Front Liner
9 – Impeller 10– Support

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DREDGE PUMP SELECTION CHART

WNQ Submerged Dredge Pumps

Note: Approximate Performance For Clear Water, To Be Used For Primary Selection Only.

√ Heavy Duty – a double-walled pump construction fully equipped with interchangeable wear parts. Excellent configuration for the most demanding operations.

√ Performance – a single-walled construction furnished with, where possible, replaceable wear parts. An all-purpose dredge pump and balanced option as regards weight, size and replaceable wear parts.

√ Easy – for operations that are less demanding. This is a single-walled construction without any replaceable wear parts – a pump construction with as few components as possible.

√ Benefits – reliable long-term operation and long lifetime, full range to suit all needs, up to 90 percent efficiency, minimum local wear, robust and easily maintainable.

Model

Capacity
(m3/h)

Head
(m)

Speed
(rpm)

Eff. η
(%)

NPSHr
(m)

Inlet Dia.
(mm)

Outlet Dia.
(mm)

Max. Particles
(mm)

300WNQ

1800-2200

20-65

300-550

70-78

<4

350

300

240

450WNQ

3200-3800

20-67

250-550

70-78

<4.5

600

450

240

500WNQ

4500-5800

20-65

250-550

74-80

<4.5

650

500

240

600WNQ

5000-7000

20-65

250-550

74-80

<4.5

660

600

250

650WNQ

6000-9000

20-70

200-400

75-85

<5.5

700

650

260

700WNQ

7500-1200

20-75

200-400

78-85

<5.5

760

700

280

800WNQ

10000-15000

20-78

200-380

80-84

<6

900

800

300

900WNQ

12000-19000

20-75

810-350

80-85

<6

960

900

320

1000WNQ

16000-25000

20-78

180-350

80-85

< 6

1200

1000

350

All WNQ submersible mud pump configurations are available for onboard, inboard, submerged and booster applications, and with suction diameters ranging from 300 to 1,000mm.

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