A 6-inch solar submersible pump is a submersible electric pump with a maximum outer diameter designed for 6-inch (≥152mm) or larger well casings, equipped with an 11kW permanent magnet synchronous motor (PMSM) supporting dual-mode input: AC 380V (3-phase) and DC 550V. This allows the pump to operate on grid power when available and switch seamlessly to solar photovoltaic panels or battery banks in off-grid scenarios, enabling 24/7 uninterrupted water supply.
Compared to traditional 4-inch pumps, 6-inch pumps offer:
- Higher flow rate: Up to 88 m³/h per unit
- Higher head capability: Suitable for medium-deep wells (30m~120m range)
- Greater adaptability: AC/DC auto-switching for solar/grid hybrid operation
6SP95-85-380/550-11000 (High-Flow Model)
| Parameter | Value |
| Rated Flow | 50 m³/h |
| Rated Head | 45 m |
| Rated Power | 11 kW |
| Voltage | AC 380V / DC 550V |
| Max Flow | ≈88 m³/h |
| Max Pump Efficiency | 73.93% |
| Max Unit Efficiency | 60.44% |
| Inlet/Outlet Diameter | DN100 (4") |
| Suitable Well Diameter | ≥6" (152mm) |
Best Efficiency Point: 50 m³/h @ 46.2m head, unit efficiency 60.44%. Ideal for large-area farmland irrigation, livestock farms, and industrial water intake.
6SP65-120-380/550-11000 (High-Head Model)
| Parameter | Value |
| Rated Flow | 30 m³/h |
| Rated Head | 70 m |
| Rated Power | 11 kW |
| Voltage | AC 380V / DC 550V |
| Max Flow | ≈58 m³/h |
| Max Pump Efficiency | 66.77% |
| Max Unit Efficiency | 53.42% |
| Inlet/Outlet Diameter | DN80 (3") |
| Suitable Well Diameter | ≥6" (152mm) |
Best Efficiency Point: 30 m³/h @ 71.4m head, unit efficiency 52.23%. 6-Inch High-Power Solar Submersible Pump is ideal for medium-deep well extraction, mountain water delivery, and long-distance pipeline supply.
The 6SP series employs a Permanent Magnet Synchronous Motor (PMSM) with an intelligent controller for adaptive AC/DC input:
AC Mode (380V / 3-Phase):
- Direct drive from grid or generator
- Best suited for areas with stable grid power as primary water supply equipment
DC Mode (550V):
- Connects to solar PV arrays (550V DC bus recommended)
- MPPT (Maximum Power Point Tracking) automatically adjusts to sunlight conditions
- Can operate without batteries (battery storage optional for nighttime operation)
Auto-Switching: The intelligent controller prioritizes solar power and automatically switches to grid/generator backup when solar input is insufficient, ensuring uninterrupted water supply.
Large-Scale Agricultural Irrigation
The 6SP95-85 model delivers 50 m³/h — enough to irrigate dozens of hectares of farmland. Pairing with a solar PV system dramatically reduces electricity costs.
Remote Mountain Water Supply
The 6SP65-120's 70m+ head easily lifts water from valley sources to hilltop reservoirs, serving remote villages and pasturelands.
Mining & Industrial Water
11kW power plus stainless steel construction handles mine dewatering and industrial circulation water. AC/DC dual-mode handles unstable mine power supplies.
Emergency Drought Relief
No grid connection required — just solar panels and the pump form an independent water supply system, ideal for emergency drought response and disaster relief.
Choose 6SP95-85 (Flow-First) When:
- Large irrigation area (>50 acres), high daily water demand
- Static water level is relatively shallow (<30m)
- Pipeline distance is short with low friction loss
Choose 6SP65-120 (Head-First) When:
- Well is deeper (static water level 30~60m)
- Long-distance water transport or significant elevation difference
- Higher pipeline friction losses expected
Recommended System Configuration:
- Solar Panels: 15~18kW PV array (DC 550V)
- Controller: AC/DC dual-mode intelligent controller with MPPT
- Cables: Waterproof solar-rated cables, min. 10mm² cross-section
- Protection: Phase failure protection, overload protection, dry-run protection, surge protection
Taizhou Lead Pump Co., Ltd. has years of R&D and manufacturing experience in solar submersible pumps. All 6SP series units undergo rigorous performance testing (factory test data from July 2026):
- Full stainless steel construction: Pump body, impellers, and shaft in 304 stainless steel — corrosion-resistant and long-lasting
- Industry-leading efficiency: 6SP95-85 achieves 73.93% max pump efficiency; 6SP65-120 achieves 66.77%
- Proven AC/DC dual-mode: Compatible with 380V AC and 550V DC for global markets
- Comprehensive quality control: Every pump individually performance-tested before shipping with traceable data
Slogan: Lead Your Water Life Easier
6-inch high-power solar submersible pumps are the ideal solution for large-scale water supply and remote area water challenges. The 6SP95-85 and 6SP65-120 — two 11kW models — deliver balanced performance and reliability in high-flow and high-head applications respectively. Combined with AC/DC dual-mode intelligent control, there's a Lead Pump solution for your irrigation, water supply, or industrial water needs, whether on-grid or off.
For sizing assistance or custom solutions, contact Taizhou Lead Pump Co., Ltd.
