ZIRI Solar Bilge Pump QDX25-5-1.3DC 1300W 51m³/h 11m

Product description

The ZIRI QDX25-5-1.3DC Solar Drainage Pump is a direct current submersible pump specially designed to move large volumes of water in installations powered by photovoltaic energy. With an electrical power of 1300 W, it delivers up to 51 m³/h of flow and reaches 11 m of lift, making it an ideal solution for rapid drainage of tanks, ponds, and basements, transfers between cisterns, and support for flood or gravity irrigation. It operates within a range of 150–200 VDC managed by an external MPPT controller (not included), which ensures the optimal operating point of the photovoltaic system and protects the pump against out-of-range electrical conditions.

Main features

• High evacuation capacity: maximum flow rate of 51 m³/h for intensive drainage and transfer.
• Manometric head up to 11 m, suitable for removing water in tanks, ponds, or basements with moderate elevation difference.
• DC power supply with a working range of 150–200 VDC via external MPPT controller.
• Submersible design for clean or slightly loaded water, ideal for solar applications without electrical grid.
• Discharge/outlet port of 2” to minimize pressure losses and maintain high flow rate.
• Continuous and reliable operation when the PV array is sized within its electrical window.

Advantages or benefits

• Very fast water evacuation thanks to its high flow rate, reducing drainage times and downtime.
• Virtually zero operating cost: harnesses solar energy and dispenses with generators or grid.
• Electrical safety and improved performance with MPPT controller, which keeps the voltage within range and prevents overvoltage.
• Simple installation with 2” hoses and fittings, integrable into existing infrastructures.
• Low maintenance in service with clean or slightly loaded water.

Purpose or applications

Emergency or maintenance drainage in basements, pits, pump chambers, and tanks; transfer between cisterns; emptying of ponds, reservoirs, and lagoons; support for flood or gravity irrigation; auxiliary pumping in farms and agricultural operations without grid access.

Technical specifications

Compatibilities

Direct compatibility: photovoltaic strings with an operating voltage between 150 and 200 VDC managed by an appropriate external MPPT controller for the field's power and current.

Compatible accessories: 2” hoses and fittings, check valve, suction strainer/basket, level switch (float), DC protection cabinet (circuit breaker and SPD), solar cable 4–10 mm² depending on distance, clamps and suspension elements.

The ZIRI QDX25-5-1.3DC is the professional solution for quickly, robustly, and safely removing or transferring large volumes of water with solar energy.