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QJ Deep Well Submersible Pump
The QJ Series Deep Well Submersible Pump is a versatile, high-efficiency solution designed for extracting groundwater from deep wells, rivers, reservoirs, and mines. Engineered with an integrated motor and pump, this submersible system operates underwater, offering reliability, compact design, and ease of installation. Ideal for agricultural irrigation, urban water supply, industrial drainage, and geothermal applications (QJR variant), it ensures minimal environmental impact and no water source contamination.
Key Features
Integrated Design: Motor and pump combined into a single unit for seamless operation and space-saving installation.
Robust Construction: Multi-stage centrifugal impellers with rubber/copper bearings ensure durability and high-pressure performance.
Advanced Motor Technology:
◦ Water-filled YQS submersible motor for cooling and lubrication.
◦ Water-resistant polyethylene insulation and anti-corrosion materials (QJR variant for geothermal use).
◦ Sand-prevention mechanism (slinger + oil-sealed skeleton) protects against sediment ingress.
Versatile Installation: Operates vertically or horizontally; suitable for wells as narrow as 150mm in diameter.
Energy Efficiency: Optimized hydraulic design delivers 60–78% operational efficiency.
Safety & Reliability: Built-in check valve (high-head models), thrust bearings for axial load support, and automatic pressure regulation.
Applications
Agricultural: Irrigation, livestock water supply, and drainage in rural/high-altitude regions.
Urban/Mining: Municipal water supply, factory drainage, and mine dewatering.
Environmental: Reservoir management, flood control, and eco-friendly water extraction.
Specialized Use:
◦ QJR Series: Geothermal applications (0–90°C water temperature), resistant to corrosion and aging.
Technical Specifications
Flow Rate: 5–1,000 m³/h
Head Range: 10–600 m (QJ up to 600m; QJR up to 400m)
Motor: YQS water-filled three-phase asynchronous motor (380V ±5%, 50Hz ±1%)
Efficiency: 60–78%
Well Compatibility: Diameters 150–500 mm
Operational Parameters
Water Temperature:
◦ QJ Series: ≤20°C
◦ QJR Series: ≤90°C
Water Quality:
◦ Sand content ≤0.01%
◦ pH 6.5–8.5
◦ Chlorides ≤400 mg/L; Hydrogen sulfide ≤1.5 mg/L
Construction & Design
Pump Structure: Vertical multi-stage centrifugal design with modular impellers connected by tension bars/bolts.
Motor Protection:
◦ Sealed chambers with water injection/release holes for pressure balance.
◦ Thrust bearings at the motor base to handle rotor weight and axial forces.
Material Innovation:
◦ QJR models use heat-resistant, anti-aging materials for harsh geothermal environments.
Why Choose QJ Pumps?
Low Maintenance: Submersible operation reduces wear; easy access to components for servicing.
Adaptability: Functions in dynamic water levels (2m below impeller) and static depths (≤70m).
Eco-Friendly: Leak-proof design prevents water contamination.
The QJ Deep Well Submersible Pump combines cutting-edge engineering with practical versatility, making it the go-to choice for efficient water management across industries. Whether for agricultural, municipal, or geothermal needs, its robust design and adaptive performance ensure long-term reliability and energy savings. Explore the QJ and QJR series to meet your specific water extraction challenges with precision.
QJ Deep Well Submersible Pump
The QJ Series Deep Well Submersible Pump is a versatile, high-efficiency solution designed for extracting groundwater from deep wells, rivers, reservoirs, and mines. Engineered with an integrated motor and pump, this submersible system operates underwater, offering reliability, compact design, and ease of installation. Ideal for agricultural irrigation, urban water supply, industrial drainage, and geothermal applications (QJR variant), it ensures minimal environmental impact and no water source contamination.
Key Features
Integrated Design: Motor and pump combined into a single unit for seamless operation and space-saving installation.
Robust Construction: Multi-stage centrifugal impellers with rubber/copper bearings ensure durability and high-pressure performance.
Advanced Motor Technology:
◦ Water-filled YQS submersible motor for cooling and lubrication.
◦ Water-resistant polyethylene insulation and anti-corrosion materials (QJR variant for geothermal use).
◦ Sand-prevention mechanism (slinger + oil-sealed skeleton) protects against sediment ingress.
Versatile Installation: Operates vertically or horizontally; suitable for wells as narrow as 150mm in diameter.
Energy Efficiency: Optimized hydraulic design delivers 60–78% operational efficiency.
Safety & Reliability: Built-in check valve (high-head models), thrust bearings for axial load support, and automatic pressure regulation.
Applications
Agricultural: Irrigation, livestock water supply, and drainage in rural/high-altitude regions.
Urban/Mining: Municipal water supply, factory drainage, and mine dewatering.
Environmental: Reservoir management, flood control, and eco-friendly water extraction.
Specialized Use:
◦ QJR Series: Geothermal applications (0–90°C water temperature), resistant to corrosion and aging.
Technical Specifications
Flow Rate: 5–1,000 m³/h
Head Range: 10–600 m (QJ up to 600m; QJR up to 400m)
Motor: YQS water-filled three-phase asynchronous motor (380V ±5%, 50Hz ±1%)
Efficiency: 60–78%
Well Compatibility: Diameters 150–500 mm
Operational Parameters
Water Temperature:
◦ QJ Series: ≤20°C
◦ QJR Series: ≤90°C
Water Quality:
◦ Sand content ≤0.01%
◦ pH 6.5–8.5
◦ Chlorides ≤400 mg/L; Hydrogen sulfide ≤1.5 mg/L
Construction & Design
Pump Structure: Vertical multi-stage centrifugal design with modular impellers connected by tension bars/bolts.
Motor Protection:
◦ Sealed chambers with water injection/release holes for pressure balance.
◦ Thrust bearings at the motor base to handle rotor weight and axial forces.
Material Innovation:
◦ QJR models use heat-resistant, anti-aging materials for harsh geothermal environments.
Why Choose QJ Pumps?
Low Maintenance: Submersible operation reduces wear; easy access to components for servicing.
Adaptability: Functions in dynamic water levels (2m below impeller) and static depths (≤70m).
Eco-Friendly: Leak-proof design prevents water contamination.
The QJ Deep Well Submersible Pump combines cutting-edge engineering with practical versatility, making it the go-to choice for efficient water management across industries. Whether for agricultural, municipal, or geothermal needs, its robust design and adaptive performance ensure long-term reliability and energy savings. Explore the QJ and QJR series to meet your specific water extraction challenges with precision.
