Application
Submersible axial flow pumps are mainly used to transport clean water with a medium temperature not exceeding 40°C or other liquids with physical and chemical properties similar to water.
Submersible axial flow pumps are widely used in large-scale water conservancy projects, farmland irrigation, circulating water transportation in thermal power stations, industrial water transportation, docks, urban water supply and drainage, and water diversion projects.
Model Description
For example:
350QZ(X)-70
350 Impeller diameter(mm)
QZ Series name
X Planetary gearbox
70 1/10 of the specific speed of the pump (i.e. the specific speed of the pump is 700)
Product Features
The design, manufacturing and refrigeration of submersible axial flow pumps comply with GB/T13008 "Technical Conditions for Mixed Flow Pumps and Axial Flow Pumps" and JB/T11916 "Large and Medium Submersible Electric Pumps" standards.
This series of submersible axial flow pumps has a wide range of models, good hydraulic performance, novel structure, high efficiency, good cavitation performance, simple and convenient installation and maintenance, etc.
The hydraulic model adopts three-dimensional flow design and CFD simulation calculation, and the performance reaches the theoretical best; the hydraulic components use metal molds and precision casting to ensure the efficiency of the water pump and a wide high-efficiency zone.
The water inlet flow channel is reasonably designed, the water inlet has no vortex, and the operation is stable; the absolute concentricity of the pump shaft and the excellent dynamic balance of the rotor components ensure that the pump has low vibration and low noise when running at high speed.
Technical Data
| Power supply | 3φ 380V 50Hz (also can supply 660V, 3KV, 6KV, 10KV) | Medium temperature | 0-40℃ |
| Frequency | 35-50Hz | Density | ≤1.05×10 3 kg/m 3 |
| Working mode | S1 | PH scope | 5-9 |
| Protection level | IP68 | Maximum immersion depth | 20m |
| Insulation level | F | Installation method | vertical installation |
Installation Diagram
|
No. |
Name |
No. |
Name |
|
1 |
Exhaust valve |
8 |
Embedded plate |
|
2 |
Pipe cover |
9 |
Pit shaft seat |
|
3 |
Cable sealing device |
10 |
Cable protection tube |
|
4 |
Rubber seal |
11 |
Chain |
|
5 |
Pipe protection plate |
12 |
Air guide sleeve+anti-lift base |
|
6 |
Protective tube seal seat |
13 |
Submersible axial flow pump |
|
7 |
Outlet elbow |
Material table for standard configuration parts
|
Parts |
Name |
Standard configuration1(clean water) |
Standard configuration2(waste water) |
|
Motor |
Motor housing |
HT250 |
QT500-7 |
|
Junction Box |
HT250 |
QT500-7 |
|
|
Main shaft |
2Cr13 |
2Cr13 |
|
|
Stator |
Silicon steel sheet + copper |
||
|
Motor core |
Cast aluminum (low pressure) / copper strip (high pressure) |
||
|
Power Cable |
Special cable for submersible pump |
||
|
Control Cable |
|||
|
Pump |
Diffuser body |
HT250 |
QT500-7 |
|
Impeller |
ZG07Gr19Ni10 |
ZG07Gr19Ni10 |
|
|
Hub body |
HT250 |
QT500-7 |
|
|
Impeller Chamber |
HT250 |
QT500-7 |
|
|
Pump housing |
Q235 |
Q235 |
|
|
Supporting parts |
Mechanical seal |
SIC-SIC |
SIC-SIC |
|
Bearing |
Domestic bearings or imported bearings |
||
|
Pit components |
Q235 |
Q235 |
|
|
Connect accessories |
A2-70 |
A2-70 |
|
Note: Materials other than the above standard configurations can be selected according to customer needs or the characteristics of the pumping medium.
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