
Solar Deep Well Helical Rotor Pump Outer 2inch 3inch Water Pump with MPPT Controller. The pump body has an outer diameter of only 2 or 3 inch, making it easy to install in traditional hand-pumped wells, old narrow-bore wells, or deep wells with restricted casing - solving the problem. Its maximum head and flow rate are ideal for pumping water from deep wells to elevated locations, thereby avoiding the energy wastage associated with high flow rates. Each pump is matched with standard 550W solar panels (1-3 pieces) and runs directly under sunlight. No expensive grid extension or battery bank is needed, significantly reducing system cost and mainte. Inlet, outlet and oil cylinder are made of stainless steel, providing excellent corrosion resistance in clean fresh water environments - suitable for long-term submerged operation. The helical rotor pump operates more smoothly under low-flow, high-head conditions. The discharge is continuous and pulse-free, reducing stress on pipes and valves -ideal for drip irrigation or domest. Completely powered by solar energy - no diesel or gasoline consumption, no exhaust emissions, and no engine noise. Ideal for ecological reserves, tourist areas, or noise-sensitive residential zones. Multiple power options with head range of 56~150m and flow range of 1.2~2.0 m3/h. Users can accurately select the right model based on well depth and daily water demand, avoiding over-sizing and waste.