LIHF All-Iron Brass Impeller Solar Irrigation Pump

Model Interpretation:
L: Vertical/Centrifugal.
I: Intelligent/Inbuilt or DC (Li).
H: High Flow/Huge Flow.
F: Ground/Surface.

Core Form: Horizontal single-stage or double-stage centrifugal pump.
Core Difference: This series typically has higher power (ranging from 0.5 HP to several HP), uses large-diameter inlet and outlet ports (such as 4-inch, 6-inch, or 1-inch), and is designed for rapidly transporting large volumes of liquid.
Core Working Principle: Large-flow centrifugal + DC brushless drive
The working logic of the LIHF series is "high throughput and high efficiency":
Wide flow channel design: Unlike multi-stage pumps (LIGJ) that prioritize high pressure, the impeller flow channel of the LIHF is designed to be wider, allowing water to pass through with less resistance, thus achieving a larger flow rate at the same power.
DC brushless direct drive: Using an electronically commutated brushless motor, it eliminates traditional carbon brushes, resulting in extremely long lifespan, very low noise, and much higher efficiency than ordinary AC motors.
MPPT intelligent control:  When paired with solar panels, it can automatically track the maximum power point. High speed and large flow rate under strong sunlight; low speed and small flow rate under weak sunlight, never wasting a single ray of sunshine.
Core Features: High flow rate, moderate pressure, easy to move

Feature Detailed Description
High Flow Rate Core advantage. The flow rate of the LIHF series is typically several tons to tens of tons per hour. It has a higher flow rate than the LIGJ series (which focuses on pressure), suitable for scenarios requiring irrigation of large areas of land in a short time.
Medium to High Head Although it is a high-flow pump, its head can usually reach 20-50 meters, sufficient to meet general uphill and long-distance water delivery needs, representing the best balance between flow rate and pressure.
Strong Self-priming Capability As a ground pump, it has good self-priming capability (usually 5-8 meters), and can easily draw water from ditches, ponds, or shallow wells.
Quiet Operation The brushless motor combined with an optimized flow channel design results in very quiet operation, without the harsh noise and sparks produced by old-fashioned brushed motors. Typical Application Scenarios
The LIHF series is ideal equipment for medium-sized farms, landscaping, and emergency drainage:

Agricultural Irrigation:
Suitable for irrigating crops requiring large amounts of water in flat areas such as rice paddies, vegetable greenhouses, and orchards, drawing water from rivers or reservoirs.
Garden/Park Sprinkler Irrigation:
Used for rapid watering of urban green belts and park lawns, utilizing its high flow rate to power multiple sprinklers simultaneously.
Drought Relief/Flood Control:
Used to quickly drain accumulated water from ponds or basements during the rainy season or flood disasters.
Industrial/Construction Site Drainage:
Suitable for applications requiring high flow rates, such as construction site foundation pit drainage and factory cooling water circulation.

Selection and Usage Recommendations
Distinguish between "Suction Head" and "Discharge Head":
Suction Head: Limited by atmospheric pressure, the vertical suction height usually does not exceed 8 meters.
Discharge Head: The water discharge height can reach tens of meters.
Note: If the well is very deep, please use a submersible pump (such as the LSG series).
Power Matching:
The LIHF series typically has a higher power rating (e.g., 500W-2000W), requiring a sufficiently large solar panel array. When selecting a model, please ensure that the peak voltage and power of the solar panels meet the pump's starting requirements.
Dry-Running Protection:
Although some models have protection functions, for safety, it is recommended to install a foot valve and filter at the inlet and ensure that the water source does not dry up.

The LIHF series is the "all-rounder workhorse" among solar surface pumps. Unlike the LIGJ series, which only pursues extremely high pressure, or the LHF-H series, which only pursues extreme flow rate, it finds a perfect balance between the two. If you need to "move a large amount of water in a short time and require a certain climbing capacity," the LIHF series is a very efficient and economical choice.