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We are a professional manufacturer of submersible deep well pumps, offering high-quality and stable performance. We have provided numerous water pump solutions to our clients across various industries. Our products are designed with precision, ensuring efficiency, durability, and ease of maintenance.
**Key Features:**
1. High-quality brand-name components
2. Skilled and experienced team
3. Excellent performance and energy efficiency
4. Direct manufacturing from the factory
**Product Parameters:**
- Flow range: Q = 10–500 m³/h
- Lift range: H = 15–405 m
- Diameter range: 32–203 mm
- Temperature range: -15°C to 80°C
**Product Overview:**
The QJ series submersible deep well pump is designed with a reasonable structure, low noise, long service life, compact size, light weight, and easy operation and maintenance. It is highly efficient, energy-saving, and ensures continuous and reliable operation without polluting the water. It is suitable for deep well water extraction, field irrigation, sprinkler systems, and urban and rural mining enterprises for water supply and drainage.
**Model Signification:**
For example, 200QJ32-91/7
- 200: Base number
- QJ: Submersible Pump
- 32: Pump flow (m³/h)
- 91: Pump head (m)
- 7: Number of impellers
**Operating Conditions for QJ (SQJ) Deep Well Submersible Pumps:**
1. Voltage should not exceed ±5% of 380V, and frequency deviation should not exceed ±1%.
2. The motor cavity must be fully filled with water.
3. The first stage impeller must be immersed at least 2 meters below the dynamic water level. The electric pump unit should be within 70 meters of the static water level, and the distance between the motor bottom and the well bottom must be more than 3 meters.
4. Water temperature should be within 20°C.
5. Sand content in water should not exceed 0.01% by weight.
6. pH value of water should be between 6.5 and 8.5.
7. Hydrogen sulfide level should be ≤1.5 mg/L.
8. Chloride ion content should be ≤400 mg/L.
9. Water source must meet the requirements for continuous pump operation.
**Specification and Performance Parameters:**
| Model | Power (KW) | Flow (m³/h) | 0.2 | 0.4 | 1 | 2 |
|----------|------------|-------------|-----|-----|-----|-----|
| SJ1-6 | 0.37 | H (M) 1 | 33.5| 33 | 30 | 19 |
| SJ1-9 | 0.37 | | 51 | 50 | 46 | 29 |
| SJ1-13 | 0.55 | | 73 | 72 | 67 | 42 |
| SJ1-7 | 0.75 | | 96 | 95 | 87 | 55 |
| SJ1-21 | 1.1 | | 119 | 118 | 108 | 69 |
| SJ1-25 | 1.1 | | 141 | 140 | 129 | 82 |
| SJ1-28 | 1.5 | | 158 | 157 | 145 | 92 |
| SJ1-32 | 1.5 | | 180 | 179 | 165 | 105 |
| SJ1-36 | 1.5 | | 203 | 202 | 186 | 118 |
| SJ1-39 | 2.2 | | 221 | 219 | 202 | 128 |
| SJ1-42 | 2.2 | | 238 | 236 | 217 | 137 |
*For more detailed specification and performance data, please contact us directly via email or phone.*