Electric Motor
The grade of power. The electirc performance index accords with GB756.
Protection grade: IP68
Cooling way: ICWO 8A41
Basic installation way: IM3013
The grade of voltage: ≤355kw , voltage are 380V or 660V
>355kw , voltage are 380V , 660V , 6Kv , 10Kv
Insulation grade: F
Rated frequency: 50Hz
The length of the cable: 10m
The mechanical seal
With two or three mechanical seals. It is generally the first mechanical seal that contacted with water directly is carborundum sealed, the second and the third is generally graphite or carborundum.
The leakage protection
QZ, QH series pumps have leakage protection sensor. When the leakage happened in the oil room, motor or terminal box, the sensor sends out the alarm or shuts down the motor and record the trouble signal.
Overheated protector
There are overheated protecting devices in the submersible motor winding, when temperature exceeds the regulation, it would send out the signal or shut the motor down.
Direction
Seen above the electric motor, the impeller is rotating clockwise.
Application range
QZ series submersible axial-flow pump, QH series submersible mix-flow pump are widely used in industry and agriculture water transportation, city water supply, slight sewage water discharge and water transfer project.
Working conditions
Clear water under 50 degrees Centigrage and other liquid that the chemical and physical properties similar to water.
| 350QZ-50D |
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| Vane installing angle |
Capcaity |
Head |
Speed |
Power(KW) |
Efficienct(%) |
Impeller diameter (mm) |
| m3/h |
l/s |
m |
rpm |
Shaft power |
Motor power |
| -4° |
592.8 608.3 690.8 |
164.7 169 191.9 |
4.26 4.25 3.28 |
980 |
9.6 9.4 8.6 |
11 |
71.9 74.9 74.9 |
300 |
| -2° |
631.7 712.9 820.7 |
175.5 198 228 |
4.88 4.39 3.09 |
11.7 10.8 9.6 |
15 |
71.9 78.7 71.9 |
| 0° |
698.6 793.2 938.9 |
194.1 220.3 260.8 |
5.15 4.61 3.03 |
13.6 12.4 10.8 |
71.9 80.3 71.9 |
| +2° |
812.8 912.4 1044.3 |
225.8 253.4 290.1 |
5.16 4.57 3.28 |
15.9 14.2 13 |
18.5 |
71.9 80 71.9 |
| +4° |
900.3 1002.4 1085.4 |
250.1 278.5 301.5 |
5.09 4.47 3.99 |
17.4 16.2 16.4 |
22 |
71.9 75.3 71.9 |
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| 350QZ-50G |
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| Vane installing angle |
Capcaity |
Head |
Speed |
Power(KW) |
Efficienct(%) |
Impeller diameter (mm) |
| m3/h |
l/s |
m |
rpm |
Shaft power |
Motor power |
| -4° |
877.2 900 1022.1 |
243.7 250 283.9 |
9.32 9.3 7.18 |
1450 |
30.1 29.7 27 |
37 |
74 76.8 74 |
300 |
| -2° |
934.6 1054.8 1214.3 |
259.6 293 337.3 |
10.69 9.6 6.77 |
36.8 34.4 30.3 |
45 |
74 80.3 74 |
| 0° |
1033.7 1173.6 1389.2 |
287.1 326 385.9 |
11.27 10.1 6.63 |
42.9 39.5 33.9 |
55 |
74 81.8 74 |
| +2° |
1202.5 1350 1545.1 |
334 375 429.2 |
11.3 10 7.19 |
50 45.1 40.9 |
74 81.5 74 |
| +4° |
1332.1 1483.2 1606 |
370 412 446.1 |
11.15 9.78 8.74 |
54.7 51.2 51.7 |
75 |
74 77.2 74 |
