SM Industry, a Company That Protects Humanity and the Environment with the Best Pump Technology

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SPL Submersible Axial-Flow Pump

A submersible axial-flow pump optimized for low-head, high-flow drainage applications across a wide range of water-management infrastructure.

Applications
  • Flood Control and Disaster Prevention: Flood protection during heavy rain and flooding; stormwater drainage from inundated areas and detention basins
  • Water Treatment Facilities: Influent and effluent processes at sewage treatment plants; large wastewater and drainage pumping stations
  • Industry and Agriculture: Industrial water intake; large-scale agricultural irrigation systems
Key Features
  • High-Efficiency Impeller: High-efficiency propeller impeller optimized for low-head, high-flow conditions
  • Space and Civil Works Savings: Submersible installation enables a more compact pumping station footprint, reducing overall building and civil works costs
  • Easy Maintenance: Designed for installation inside a column pipe, simplifying construction, installation, and lifting
  • Multiple Built-In Safety Devices: Sensors for stator temperature, internal leakage, and bearing temperature enable early detection of potential failures

Specification

Motor Specifications
  • Dry-type submersible squirrel-cage induction motor (IP68)
  • Insulation: Class F; Class H optional
  • Output range: 15–1,500 kW
  • Service Factor : 1.15
  • Built-in sensors for winding temperature, seal leakage, bearing temperature, and more
Applied Technology

Impeller Seizure Prevention and Diagnostic System (New Excellent Technology (NET) for Disaster-Safety)
Conventional submersible pumps left idle for extended periods are vulnerable to impeller seizure caused by sludge buildup and to solidification of bearing grease, potentially leaving them inoperable during an emergency. SM Industry developed the “Submersible Pump with Auxiliary Motor” to solve these issues.

  • Always Ready: Periodic low-speed operation of the auxiliary motor prevents foreign-object jamming and component solidification
  • Condition Monitoring: A dedicated auxiliary motor control panel diagnoses impeller seizure and enables efficient, integrated management of multiple pumping stations
  • Reduced Maintenance Costs: Preventing critical failures such as motor burnout reduces maintenance costs by approximately 20% or more compared with conventional products
  • Excellent Site Compatibility: The patented technology is built into the pump, allowing installation by the same method without changes to existing pumping station designs
  • Low-Power, High-Efficiency Operation: The auxiliary motor and impeller can operate with only a low-power DC 12 V or AC 220 V supply
Cross-Sectional Diagram
Performance Curve Diagram