Submerged Pump
Vertical Submerged Pumps for Tanks, Pits and Sumps
A vertical submerged pump sits with its impeller below the liquid surface and its motor above it. That layout removes the two problems that normally complicate tank emptying: no external mechanical seal is required, and there is no suction line to lose prime. The range covers two series for tank-bottom, pit and underground installation.
Series overview
- LZ — vertical submerged pump, top-plate mounted for tanks and pits.
- ZJL — vertical submerged pump for tank and pit installation.
Published performance range
Flow is published from 2 m³/h to 600 m³/h, head from 8 m to 100 m, with an immersion depth of 0.5–3 m that can be customised to the tank. The LZ design is available for standard service up to 100°C or in a high-temperature version up to 300°C.
Why specify a submerged pump
- No external mechanical seal, so there is no seal face to leak against the tank wall.
- No suction line and no priming — the impeller is already submerged.
- The motor stays above the liquid, which keeps it accessible for maintenance.
- Immersion depth can be matched to the vessel rather than the other way round.
Typical applications
- Tank-bottom emptying and transfer
- Pit and sump duty, including underground installation
- High-temperature liquid transfer
- Difficult liquids where a suction line is impractical
Frequently asked questions
Does a submerged pump need a mechanical seal?
The vertical submerged design needs no external mechanical seal, which is one of its main advantages for tank and pit duty.
How deep can the pump be immersed?
The published immersion depth is 0.5–3 m, and it can be customised to suit the tank.
Can it handle high-temperature liquid?
Yes. The LZ series is available for standard service up to 100°C or a high-temperature version up to 300°C.
Technical selection & RFQ
Request a Quote for Submerged Pump
Looking for a Submerged Pump supplier for an industrial project? Share the operating conditions below so our team can review the duty, recommend a suitable configuration and prepare a quotation. Final model selection and performance should be confirmed against your actual process conditions and the applicable product data.
Information to include in your inquiry
- Duty point: Required flow rate and total head / discharge pressure; include the operating point if known
- Pumped medium: Fluid name, concentration, viscosity, density, solids content and corrosiveness
- Operating conditions: Normal and maximum temperature, inlet pressure, suction lift and duty cycle
- Materials & sealing: Preferred wetted materials, seal type and any leakage or hygiene requirements
- Motor & installation: Voltage, frequency, phase, hazardous-area requirements if applicable, and mounting / connection details
Not all details are available yet? Send the information you have, your datasheet or a process description. We can identify the missing selection data before confirming a model.