200QJ Deep Well Submersible Pump China Factory and Leading Suppliers

Looking for a reliable China factory for deep well water solutions? We are professional suppliers of the 200QJ Series pumps. We undertake OEM processing and custom design of non-standard submersible motors and pumps according to user requirements, adhering to GB/T2816-2014 and GB/T2818-2014 standards. WhatsApp: 17855846335
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The 200QJ Series Deep Well Submersible Pump is a high-efficiency water lifting solution designed for direct integration with submersible motors. Featuring a vertical, compact structure, this series minimizes the installation footprint while maximizing operational performance. It is engineered for versatility, making it an ideal choice for agricultural irrigation, municipal engineering, urban water supply, and industrial mining operations, as well as drought relief and flood drainage projects.

Built for reliability and stability, the 200QJ series supports a broad operational range with flow rates from 5 to 500m³/h, lift heights reaching up to 800m, and power capacities between 3 and 315KW. By utilizing advanced CAD design and high-quality insulation materials, these pumps ensure consistent performance in demanding environments, providing a robust solution for deep-well water extraction and high-pressure fluid transport.

Detailed Parameters

Flow Range5 - 500 m³/h Max Lift Head4 - 800 m
Power Range3 - 315 KW Rated VoltageThree-phase AC 380V (±5%)
Frequency50Hz (±1%) Water Temperature≤ 20 °C
PH Value Range6.5 - 8.5 Solid Impurities≤ 0.01% (mass ratio)
Chloride Ion Content≤ 400 mg/L Hydrogen Sulfide≤ 1.5 mg/L

Key Advantages

Superior Durability

Equipped with high-quality insulation winding and a sand-prevention structure to protect the motor from well contaminants.

Efficient Cooling

Water-filled wet submersible motor design ensures optimal cooling and bearing lubrication for continuous operation.

Precision Engineering

Computer CAD design ensures a simple yet high-performance structure with optimized hydraulic efficiency.

Easy Installation

Compact vertical design allows for easy deployment in narrow wellbores with simplified maintenance access.

Stable Performance

Reliable thrust bearings and couplings prevent shaft migration, ensuring steady flow and long-term stability.

Wide Application

Perfectly suited for deep well intake, high-rise water supply, mountain irrigation, and domestic water needs.

Product Gallery

Management Platforms

Precision Assembly

Strict quality control during the coupling of pump and motor to ensure perfect alignment.

Insulation Testing

Rigorous 500V shaking table tests to ensure insulation resistance meets 150MΩ standards.

Protection Systems

Integrated overload, short-circuit, and phase protection for maximum motor safety.

Waterproof Sealing

Multi-layer high-pressure insulation taping for waterproof cable joints in deep wells.

Depth Optimization

Optimized positioning (at least 3m from well bottom) to prevent mud ingestion.

Routine Maintenance

Standardized annual inspection cycles to replace wearing parts and maintain efficiency.

Investment Return Comparison

FeatureStandard Pumps200QJ Series
Energy EfficiencyModerateHigh (Optimized CAD)
Service LifeShort to MediumLong-term (Water Lubed)
Installation CostComplex/HighSimplified/Low
Maintenance FrequencyFrequentReduced (Robust Design)
Operational StabilityVariableHigh Stability

Frequently Asked Questions

Q: What is the ideal installation depth for the 200QJ submersible pump?

The pump should be completely submerged, with a diving depth not exceeding 70m, and the bottom of the pump must be at least 3m away from the bottom of the well to avoid pumping sediment.

Q: How do I maintain the motor's insulation resistance?

Ensure the motor cavity is filled with clean, non-corrosive water before use. Periodically check that the insulation resistance remains above 0.5 megaohm during operation.

Q: Can the 200QJ pump be used for muddy water or new wells?

No, this pump is designed for clean water. Pumping sediment or muddy water from new wells is strictly prohibited as it can lead to premature wear and damage.

Q: What should I do if the pump vibrates or makes loud noise?

Immediately shut down the machine. Vibration often indicates the pump is running against the well wall or there is an internal fault that needs urgent maintenance.

Q: How often should the wearing parts be replaced?

It is recommended to dismantle and repair the pump every operational year, or every two years if the submersible time is less, replacing the impeller, shaft sleeve, and sealing rings.

Q: Is the 200QJ pump compatible with different voltage grades?

The standard model is 380V/50Hz. However, submersible motors with other voltage specifications can be customized to meet your local power requirements.

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