JST Submersible Drainage Pump

The JST 415V Submersible Drainage Pump delivers high-performance, continuous dewatering for commercial construction sites, civil engineering projects, and industrial sumps.

Built with an outer stainless steel jacket, pumped water flows directly around the motor frame to ensure continuous cooling even during low-water operation. Its robust cast iron housing and channel impeller design provide efficient water transfer for clean and dirty site drainage duties.

Key Features & Benefits

• Continuous 415V Duty: Heavy-duty 3-phase manual operation engineered for industrial sumps and site dewatering setups.
• Flow-Through Motor Cooling: Outer stainless steel jacket prevents motor overheating during low-level or extended pumping cycles.
• Robust Build Quality: Built with a cast iron pump body and outer stainless steel casing for maximum site durability.
• Double Mechanical Seals: Enclosed in a dedicated oil bath to protect against dry running and prevent water ingress into the motor.
• High-Head Capability: Engineered to deliver reliable head pressures and steady flow rates across demanding site layouts.

Applications

• Construction site dewatering, retention ponds, and excavations
• Industrial drainage sumps, storm water pits, and clean/dirty water transfer
• Civil engineering projects requiring long-distance or high-head pumping
• Flood control and utility vault drainage

Note: This listing covers manual 415V three-phase models. For single-phase options (110V/230V) or vortex/sewage cutter variants (JST SV or SK series), please browse our dedicated product listings or contact our technical sales team.

Key Details

• The JST submersible drainage pumps feature twin mechanical seals, carbon ceramic and silicon carbide in a lubricated chamber, as stainless steel motor case and shaft and cast iron impeller, lower motor bearing/seal housing, motor top cover and volute
• The “H” version is available for high head applications
• Supplied complete with 10 metres of power cable
• Maximum Head: up to 31m
• Maximum Flow: up to 2000 litres/min
• 415V 3-Phase