Product introduction
This Self balance high pressure multistage pump is horizontal single suction multistage sectional centrifugal pump, owned 6 national patents, and with high efficiency, wide performance, steady and safety operation, low noise, long operation and easy installation.
Self balance high pressure multistage pump can deliver the medium with solid particles (the diameter of solid particles should less than quarter of the impeller channel), besides, it can be changed the pump materials (or flow channel materials), seal way, add cooling system then can deliver the hot water, oils, corrosive liquid, and abrasive medium.
Performance curve range
Flow:7.5-864m3/h
Head:46-2070m
ZD155-30X10 performance details:
Model | ZD155-30X10 |
Flow | 155m3/h |
Head | 300m |
Speed | 2950rpm |
Stages number | 10 stages |
NPSHr | 4.3m |
Impeller diameter | φ172mm |
Feature
Self balance high pressure multistage pump adopt the symmetrical setting impeller, it can eliminate the axial force, the remain axial force can born by a pair of back to back angular contact ball bearing. As there is no balance device, that is no friction loss and return loss in the balance disc, so the pump efficiency is greatly higher 5-14% than common multistage pump. So totally solved the problem that caused by the loss efficiency of balance device, so greatly longer the operation hours.
MD Clear Water Performance | ||||
Type | Flow | Head | Speed | Motor Power |
m3/h | m | r/min | kw | |
MD6-50x2 | 6.3 | 100 | 2950 | 11 |
MD6-50x12 | 6.3 | 600 | 2950 | 55 |
MD25-50x3 | 25 | 150 | 2950 | 30 |
MD25-50x12 | 25 | 600 | 2950 | 110 |
MD46-50x12 | 46 | 600 | 2950 | 160 |
MD85-67x9 | 85 | 603 | 2950 | 250 |
MD120-50x2 | 120 | 100 | 2950 | 55 |
MD120-50x9 | 120 | 450 | 2950 | 220 |
MD155-67x9 | 155 | 603 | 2950 | 450 |
MD360-40X10 | 360 | 400 | 1480 | 630 |
MD580-70X10 | 580 | 700 | 1480 | 1800 |
MD720-60x9 | 720 | 540 | 1480 | 1600 |
Main Features
- New structure
Automatic balancing of huge axial thrust within pump cavity of Self balance high pressure multistage pump can be without the balance disc structure.
- New technology
Unique throating and pressure reduction devices, odd-level balancing device.
- Efficient energy-saving
No leakage of balancing water reduces loss of volume and improves pump efficiency, efficiency is on average 2-5% higher than normal one.
- High reliability
By canceling easy-failing balancing disc,Self balance high pressure multistage pump reliability is greatly improved, maintenance frequency and maintenance cost are reduced.
- Low maintenance cost and long-life time
Precision casting and unique throttling and pressure reducing devices for auxiliary support, pump vibration and noise are greatly reduced and service life is much longer.
- Excellent NPSH
Forging casting, reliable anti-abrasive materials make sure the pump with excellent NPSH, Self balance high pressure multistage pump work steady, preposition pump is not needed or increase the height of the inlet chest.
- High reliable mechanical seal
No axial clearances when pump working and stop.
- Easy maintenance
Self balance high pressure multistage pump can change mechanical seal, bearing without disassemble the inlet/outlet pipes.
- Low maintenance cost
Forging casting spare parts can save the maintenance cost.
- Wide application
No balance device make pump move wider application.
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