The LSB Submersible Pump is a high-performance, energy-efficient pump designed for industrial, municipal, and deep-water applications. Constructed with durable stainless steel, corrosion-resistant alloys, and precision-engineered components, the LSB pump is ideal for continuous submersible operation in demanding environments.
This pump is fully submersible, eliminating the need for priming and providing leak-free, low-noise, and reliable fluid handling. Its hydrodynamically optimized impellers and casing design ensure maximum efficiency, stable flow, and high discharge pressures.
The LSB pump is widely used in municipal water supply, industrial water transfer, wastewater treatment, irrigation, flood control, and chemical fluid handling. Optional features include mechanical seals, thermal protection sensors, variable frequency drive (VFD) compatibility, and PLC/SCADA integration for automated and remote-controlled operation.
With ISO 2858, API 610, CE, and ISO 9001 certifications, the LSB Submersible Pump meets international standards for safety, performance, and quality, making it a trusted choice for industrial, municipal, and chemical applications worldwide.

High-Efficiency Submersible Design
Fully submerged operation eliminates priming requirements.
Reduces operational noise and ensures leak-free performance.
Robust Construction
Pump casing, impellers, and shaft made of stainless steel and corrosion-resistant alloys.
Resists abrasion, chemical corrosion, and wear, extending service life.
Wide Flow and Pressure Range
Flow rates: 1–5000 m3/h, depending on model.
Head: up to 150 meters for single-stage units, higher for multistage versions.
Reliable Mechanical Seals
Equipped with double mechanical seals with oil chamber to prevent leakage.
Protects pump from chemical or corrosive fluid penetration.
Thermal Protection
Built-in thermal sensors prevent motor overheating.
Enables safe, continuous operation under high temperature conditions.
Variable Frequency Drive (VFD) Compatible
Allows precise flow rate and pressure control.
Supports PLC/SCADA system integration for automated operation.
Maintenance-Friendly
Modular construction allows easy inspection, cleaning, and replacement of key components.
Versatile Applications
Suitable for industrial water systems, municipal water supply, wastewater treatment, flood control, irrigation, and chemical transfer.
| Parameter | Specification Range |
Pump Type | |
Flow Rate | 1 – 5000 m3/h |
Head | Up to 150 meters (single-stage); higher for multistage |
Pressure | Up to 25 bar depending on configuration |
Operating Temperature | -20°C to +120°C depending on fluid and materials |
Motor Type | Submersible electric motor (TEFC or wet-type) |
Material of Construction | Stainless steel, alloy steel, corrosion-resistant coatings |
Impeller Type | Open, semi-open, or closed centrifugal impeller |
Shaft Material | Stainless steel or alloy steel |
Bearing Type | Anti-friction or hydrodynamic bearings |
Seal Type | Double mechanical seal with oil chamber |
Cable Type | Submersible power cable with chemical-resistant insulation |
Drive Options | Electric motor, VFD compatible |
Installation Type | Vertical submersible immersion |
Noise Level | <70 dB(A) depending on model |
Transfers groundwater, well water, and distribution water efficiently.
Widely used in water towers, booster stations, and deep wells.
Suitable for industrial process water, cooling water circulation, and factory water systems.
Ensures stable flow and pressure for manufacturing operations.
Handles municipal sewage, industrial effluents, and sludge solutions.
Reduces clogging and maintenance requirements in wastewater plants.
Effective for stormwater management, drainage systems, and flood mitigation.
Provides rapid response and reliable pumping during peak water conditions.
Transfers irrigation water, fertilizers, and agricultural solutions.
Supports large-scale irrigation systems and automated agricultural operations.
Compatible with weak acids, alkalis, and other mildly corrosive fluids.
Suitable for chemical tanks, industrial fluid circulation, and chemical processing.
Provides dewatering and slurry transfer for tunnels, mines, and construction sites.
Ensures efficient water removal and mud handling.
Vertical long-axis design allows installation in deep wells, large tanks, and high-head situations.
Ensures consistent, high-efficiency operation.
Confirm pump installation, correct submersion depth, and proper electrical connections.
Inspect mechanical seals, impellers, bearings, and motor insulation.
Verify fluid compatibility with pump materials.
Ensure pump is fully submerged.
Start motor at low voltage, then gradually increase to operational voltage.
Monitor flow rate, head, vibration, and motor temperature.
Adjust operation using VFD or control system for optimal performance.
Operate within rated flow, head, and temperature limits.
Monitor vibration, noise, and potential leakage regularly.
Periodically inspect impellers, seals, and bearings.
Reduce flow gradually before stopping the motor.
Disconnect power and lift the pump from the fluid carefully.
Flush pump with clean water if handling corrosive or dirty fluids.
Inspect and clean pump before storage or next use.
Routine Inspection
Monitor vibration, noise, temperature, and leakage.
Inspect impellers, bearings, and mechanical seals regularly.
Mechanical Seal Maintenance
Inspect seals periodically.
Replace worn or damaged seals immediately to prevent leakage.
Motor Maintenance
Check insulation resistance, bearing temperature, and cooling system.
Lubricate bearings as required.
Cable and Electrical Maintenance
Inspect submersible cable for damage or wear.
Ensure proper grounding and electrical connections.
Bearing and Impeller Maintenance
Lubricate or replace bearings according to operational schedule.
Inspect impellers for wear, erosion, or blockage.
Scheduled Overhaul
Recommended every 12–18 months depending on operating conditions.
Inspect pump casing, impellers, mechanical seals, and bearings thoroughly.
| Problem | Possible Cause | Solution |
Pump fails to operate | Electrical issue, phase loss | Check wiring, voltage, and phase sequence |
Flow rate below specification | Impeller blockage or wear | Clean or replace impeller, check suction line |
Excessive vibration or noise | Bearing wear or misalignment | Replace bearings, check alignment |
Seal leakage | Mechanical seal failure | Replace seals, inspect shaft alignment |
Motor overheating | Overload, poor cooling | Check voltage, thermal protection, fluid temperature |
Cable insulation failure | Chemical attack or wear | Replace cable, ensure waterproof integrity |
Corrosion or erosion | Fluid incompatibility or debris | Verify fluid compatibility, clean pump |
High-Efficiency Submersible Design – Eliminates priming and reduces energy consumption.
Robust Construction – Resistant to corrosion, abrasion, and wear.
Reliable Mechanical Seals – Prevent fluid leakage and motor damage.
Wide Flow and Head Range – Suitable for industrial, municipal, and chemical applications.
VFD and Automation Ready – Supports precise control and remote monitoring.
Maintenance-Friendly Design – Modular construction simplifies inspection and repair.
Versatile Applications – Suitable for water supply, wastewater, flood control, irrigation, and industrial fluids.
The LSB Submersible Pump is a durable, high-efficiency, and versatile pump solution for industrial, municipal, irrigation, and chemical applications. Its robust construction, submersible design, thermal protection, VFD compatibility, and maintenance-friendly features make it ideal for safe, continuous, and long-term fluid handling operations.
Copyright ? Jiangsu Longjie Pump Manufacturing Co., Ltd.