The 175QJ Deep Well Submersible Pump is a high-performance water lifting solution engineered for direct integration with submersible motors. Featuring a compact vertical structure and a space-saving design, this series ensures effortless installation and streamlined maintenance. It is the ideal choice for demanding applications including agricultural irrigation, municipal water supply, urban drainage, industrial mining, and critical flood or drought relief operations.
Designed for versatility and reliability, the QJ series offers an expansive operational range with flow rates from 5 to 500m³/h, heads reaching up to 800m, and power capacities between 3 and 315KW. By combining advanced CAD design with premium insulation materials, these pumps deliver stable performance under diverse environmental conditions, ensuring a consistent water supply for high-rise buildings and large-scale water conservancy projects.
Detailed Parameters
| Flow Range | 5 - 500 m³/h | Max Head | 4 - 800 m |
|---|---|---|---|
| Power Range | 3 - 315 KW | Voltage Grade | 380V / 50Hz (Customizable) |
| Water Temperature | ≤ 20 °C | pH Value Range | 6.5 - 8.5 |
| Solid Impurities | ≤ 0.01% (Mass Ratio) | Chloride Ion Content | ≤ 400 mg/L |
| Hydrogen Sulfide | ≤ 1.5 mg/L | Max Immersion Depth | 70 Meters |
Key Advantages
High Durability
Constructed with high-quality submersible winding wire and premium insulation for maximum operational lifespan.
Efficient Cooling
Water-immersed wet motor design utilizes surrounding water for active cooling and bearing lubrication.
Precision Engineering
Designed via computer CAD to ensure optimal hydraulic performance and a compact, reliable structure.
Sand Protection
Equipped with dual oil seals and a dedicated sand discharging ring to prevent internal motor contamination.
Pressure Balance
Includes a pressure regulating diaphragm to manage internal expansion caused by temperature fluctuations.
Easy Maintenance
Portable and modular design allows for easy disassembly and cleaning of impellers and guide housings.
Product Gallery
Management Platforms
Installation Prep
Comprehensive check of wellbore diameter and depth to ensure a perfect fit for the 175QJ series.
Motor Priming
Required filling of the motor cavity with clean, non-corrosive water before deployment to prevent dry running.
Electrical Safety
Mandatory use of waterproof cables and external overload protection devices to prevent motor burnout.
Grounding Control
Strict grounding protocols for both steel and plastic piping to eliminate electric shock risks.
Operational Monitoring
Continuous tracking of current stability and noise levels to ensure optimal rated flow performance.
Annual Maintenance
Scheduled annual extraction for cleaning and replacement of wearing parts like impeller shaft sleeves.
Investment Return Comparison
| Performance Metric | Standard Pumps | 175QJ Series |
|---|---|---|
| Energy Efficiency | Moderate | High (Optimized CAD Design) |
| Maintenance Cycle | Frequent | Extended (Annual) |
| Operational Lifespan | Short to Medium | Long (Premium Insulation) |
| Installation Cost | Standard | Low (Compact Structure) |
| System Stability | Variable | Highly Stable (Water-Cooled) |
Frequently Asked Questions
No, this pump is designed specifically for clean water. It is strictly prohibited to use it for washing new wells or pumping sediment and muddy water to avoid premature damage.
The immersion depth should not exceed 70 meters. Additionally, a minimum distance of 3 meters from the bottom of the pump to the bottom of the well must be maintained.
To prevent freezing damage, all water must be drained from the motor cavity. Store the pump indoors in a dry environment without corrosive gases at temperatures below 40°C.
The standard model operates on three-phase AC 380V at 50Hz. Voltage fluctuations should be within ±5%, and frequency fluctuations within ±1%.
The primary wearing parts include the impeller, shaft sleeve, rubber shaft sleeve, and sealing rings. These should be checked and replaced during annual maintenance.
Severe vibration or noise indicates a potential issue. You should immediately shut down the machine to troubleshoot, checking for pump misalignment or cavitation caused by low water levels.
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