Lorentz PU1800 C-SJ5-12 Submersible Solar Pump 7.6 m³/h 70 m Centrifugal

Product Description

The Lorentz PU1800 C-SJ5-12 Submersible Solar Pump is a professional pump unit designed to provide high pressure with stable flow in 4" boreholes. It combines the centrifugal hydraulic body PE C-SJ5-12, made of AISI 304 stainless steel and featuring an integrated check valve, with a ECDRIVE 1200/1800-C brushless submersible motor. Thanks to its efficient design, it achieves up to 7.6 m³/h and 70 m head, making it ideal for sprinkler or medium/high-pressure irrigation, elevated tanks, and transfers with elevation difference in photovoltaic pumping installations. This version is PU (does not include controller), ready to integrate with Lorentz controllers of the same platform that provide MPPT tracking, protections, and automation with well probes and float switches.

Main Features

• Performance: 7.6 m³/h flow and 70 m head for 4" wells.
• Centrifugal hydraulics PE C-SJ5-12 in AISI 304 with check valve; maximum hydraulic efficiency ≈ 65 %.
• ECDRIVE 1200/1800-C brushless motor, IP68, water-lubricated; nominal power approx. 1.7 kW.
• Lorentz modular architecture: quick assembly, minimal maintenance, and original spare parts.
• Silent operation, high efficiency, and long service life in clean water.

Advantages or Benefits

• High pressure with optimized consumption for sprinkler irrigation, pivots, or elevated tanks.
• Superior durability: stainless materials and brushless motor reduce wear and downtime.
• Integrated check valve that protects the water column and prevents backflow when stopped.
• Scalable: by adding a Lorentz controller, you obtain MPPT, protections, and automatic level control.
• Ideal as a replacement pump unit in existing systems or as a base for a new system.

Purpose or Applications

Suitable for agriculture and livestock, transfers with significant elevation difference, supply to elevated tanks, and internal networks on farms. It offers its best performance in 4" wells where sustained pressure and high reliability with solar energy are required.

Technical Specifications

Compatibilities

This unit does not include a controller. It is compatible with Lorentz controllers from the PS2-1800 family, which add MPPT, protections, and inputs for well probe and float switches. When pairing with PS2-1800, size the PV generator for aggregate Vmp > 102 V, total Voc ≤ 200 V DC, and an Isc within the controller's admissible range. Use Lorentz accessories and spare parts from the C-SJ series and ECDRIVE motors.

The Lorentz PU1800 C-SJ5-12 combines pressure, efficiency, and reliability with a modular design that simplifies installation and service in professional submersible solar pump projects.