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ZN series high efficiency new designed dredger pumps are particularly suitable for dredging, filling and other operations in rivers and lakes. It fully meets the requirements of the dredger for mud pumps.They are composed of a pump head, reducer gear box, high elastic coupling, and marine transmission monitoring system.
Overview
Capacity range: 750-25000 m3/h
Head range: 20- 85m
Speed range: 180-850rpm
Power range: 2000kw in max
ZN dredge pumps are new type of single-stage, single suction, cantilever horizontal dredge pumps.
with advantages of high efficiency, wear resistant, excellent performance,
they were designed for handling more abrasive with solids slurries in the river dredging,
sand reclamation, explosive sludge in metal melting, dredging in dredger and course of river and other fields.
Features
1. Cantilevered, horizontal, centrifugal, one stage, single casing pump;
2. High head, large capacity, high efficiency, good NPSH performance;
3. Long bearing life, the bearing assembly with large diameter shaft and short overhang;
4. Wear-resistant wet parts, the wet parts are made of Ni hard and
high chromium abrasion resistant alloys. (more than 27% Chrome alloy);
5. The shaft seals can be gland seal or Lip seal;
6. The discharge branch can be positioned at interval of 45 degrees by request and
oriented to any eight positions to suit installations and applications.
Structure Drawing
Two frame design: Pump with bracket in standard (Durable using with easy maitanance)
Pump integrated with gearbox (Cabinet room saving)
Model Specification
▲Model Meaning
ZN450 ZN: Zidong Pump High Efficiency Dredging Pump
450: Discharge size in mm
| Model | Capacity | Head | Speed | Efficiency η(%) | NPSH (m) | Outlet/Inlet Diameter | Max Particles Size (mm) |
| (m3/h) | H(m) | n(r/min) | (mm) | ||||
| 200ZN | 750-1000 | 40-65 | 700-850 | 70-72 | 4 | 200/250 | 180 |
| 250ZN | 1100-1300 | 40-65 | 500-650 | 70-74 | 4 | 250/350 | 144 |
| 300ZN | 1800-2200 | 40-65 | 400-550 | 74-78 | 4 | 300/450 | 200 |
| 350ZN | 2600-3000 | 40-65 | 400-550 | 74-78 | 4.5 | 350/450 | 205 |
| 400ZN | 2800-3200 | 20-40 | 400-550 | 74-78 | 4.5 | 400/450 | 200 |
| 450ZN | 3200-3850 | 40-67 | 350-500 | 76-80 | 4.5 | 450/600 | 220 |
| 500ZN | 4500-5500 | 40-65 | 350-450 | 78-80 | 4.8 | 500/650 | 230 |
| 600ZN | 5000-9000 | 55-80 | 280-420 | 84-85 | 6 | 600/660 | 320 |
| 700ZN | 8000-12000 | 60-85 | 280-380 | 83-85 | 6 | 700/760 | 380 |
| 900ZN | 12000-19000 | 50-75 | 280-330 | 85-87 | 6 | 900/960 | 320 |
| 1000ZN | 16000-25000 | 23-76 | 181-290 | 85-87 | 6 | 1000/1200 | 350 |
Performance Curve
Applications
| ● Mineral Processing; | ● Power Generation; | ● Aggregate; | ● Ash Handling; |
| ● Flue Gas Desulfurization; | ● Thickener & Tailings; | ● Mine Dewatering; | ● Industrial Slurries; |
| ● Aggregate; | ● Thickener & Tailings; | ● Dredge. |
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