Construction of dredging pump 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
Note: Approximate Performance For Clear Water, To Be Used For Primary Selection Only.
Features
√ 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.
Performance Parameters
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
Applications
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.