Lorentz PU1800 HRE-04 Submersible Solar Pump 0.71 m³/h 70 m Helicoidal

Product Description

The Lorentz PU1800 HRE-04 Submersible Solar Pump is a professional unit for solar pumping in 4” wells that combines the brushless ECDrive 1800-HRE motor with the HRE-04 helical hydraulics. It is optimized to provide high head with moderate flow rates, reaching up to 70 m of lift with a reference flow of 0.71 m³/h. Its construction in AISI 304/316 stainless steel, the integrated non-return valve, and the IP68 sealing of the assembly ensure reliability, efficiency, and a long service life in demanding applications. Important: as a PU (Pump Unit), it includes pump + motor, but does not include the controller; a compatible Lorentz controller is required to operate with solar energy.

Main Features

• HRE-04 helical hydraulics designed for high head with excellent performance in solar energy.
• Reference flow of 0.71 m³/h and head up to 70 m in wells with diameter ≥ 4”.
• ECDrive 1800-HRE motor (≈1.7 kW), brushless, IP68, maintenance-free.
• Robust construction in AISI 304/316 and integrated non-return valve for column protection.
• Lorentz modular architecture: spare parts available and compatibility with the PS2 ecosystem.

Advantages or Benefits

• Lifts water from considerable depths with optimized solar consumption, ideal for elevated tanks.
• Very low operating cost: high-efficiency brushless motor and minimal maintenance.
• Greater hydraulic safety by reducing water hammer thanks to the integrated check valve.
• Simple installation and service due to its modular design and availability of Lorentz spare parts.

Purpose or Applications

Domestic and community water supply, filling of mid-level tanks, drip irrigation on slopes, and livestock. Especially suitable when pumping height is prioritized over flow in off-grid or hybrid solar systems.

Technical Specifications

Compatibilities

Requires a compatible Lorentz controller (not included); the usual option for this power is PS2-1800. The photovoltaic array must be sized according to the controller’s electrical limits (open-circuit voltage, input current, and MPPT window), without limiting panel brands. Recommended accessories: dry well probe, tank sensor, DC protections, submersible cable, and column piping/valves.

The Lorentz PU1800 HRE-04 Submersible Solar Pump provides the ideal balance between high lift, efficiency, and robustness, offering professional results and minimal maintenance in demanding solar pumping projects.