LIQB Air-Cooled Impeller Solar Household Pump

Model Interpretation:
Vertical/Centrifugal.
Usually represents "Inbuilt Controller" or "Intelligent".
Submersible/Clean Water or general code.
B: Surface/Household (Biao Mian).
Core Configuration: Horizontal single-stage or double-stage DC brushless centrifugal pump.
Key Differences: This series typically features a compact size and built-in controller (for some models), designed specifically for household and small commercial applications.

Core Working Principle: Centrifugal force + Permanent magnet brushless motor

The LIQB series operates on the principle of "high efficiency, energy saving, and automatic operation":

1. Single/Double-stage centrifugal: After the water flows into the pump body, it is thrown out by the high-speed rotating impeller, converting kinetic energy into pressure energy. Although the number of stages is not as many as deep well pumps, it is sufficient for household water supply and short-distance water transfer.
2. DC Brushless Drive (BLDC):  Uses an electronically commutated brushless motor, eliminating traditional carbon brushes, resulting in extremely long lifespan, very low noise, and significantly higher efficiency than ordinary AC motors.
3. MPPT Intelligent Control:  When paired with solar panels, it automatically tracks the maximum power point. High speed and high flow rate during strong sunlight; low speed and low flow rate during weak sunlight, ensuring no wasted sunlight.

Key Features: Compact size, stable pressure, maintenance-free

Feature | Detailed Description
Medium-High Head (Moderate Pressure) | Core advantage. The head of the LIQB series is typically between 20 and 50 meters. It has higher pressure than the LHF-H series (high flow, low head), making it suitable for supplying water to the second and third floors of a house, or for transporting water to a reservoir at a certain height. |
Built-in Smart Control | Many LIQB models support built-in or plug-and-play MPPT controllers.  It features water level sensing (automatic shutdown when full, automatic start when low), achieving truly unattended operation. |
Quiet Operation | The brushless motor and optimized flow channel design result in very quiet operation, unlike older brushed motors that produce harsh noise and sparks. |
Strong Self-Priming Capability | As a surface pump, it has good self-priming capabilities (usually 5-8 meters), allowing it to easily draw water from ditches, ponds, or shallow wells. |

Typical Application Scenarios

The LIQB series is ideal for home use, small orchards, and villa water supply:

1. Home/Villa Water Supply:
Utilizing its medium-high head characteristics, it can pump groundwater or river water for household washing, toilet flushing, and laundry.
2. Small Farmland/Vegetable Garden Irrigation:
Suitable for small farms of a few acres, drawing water from nearby ditches or ponds for irrigation.
3. Rooftop Garden/Balcony Watering:
Due to its compact size, it can be installed on a balcony or rooftop, and used with solar panels to directly supply water to plants at higher elevations.
4. Fish Pond Circulation/Aeration:
Used for water circulation and filtration in small ornamental fish ponds.

Selection and Usage Suggestions

1. 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 discharge height can reach tens of meters.
*Note: If the well is very deep, please use a submersible pump (such as the LSG series).*
2. Power Matching: The LIQB series pumps typically have moderate power (e.g., 0.2HP-0.6HP), suitable for small solar panel arrays (200W-600W). When selecting a pump, please ensure that the peak voltage and power of the solar panels meet the pump's starting requirements.
3. Dry-running protection:
Although some models have protection functions, for safety reasons, it is recommended to install a foot valve and filter at the water inlet and ensure that the water source does not dry up.

The LIQB series is the "all-rounder" among solar water pumps. It is neither as bulky and expensive as industrial pumps, nor does it suffer from insufficient pressure like simple pumps. If you are a home user and need a quiet, durable solar pump that can both pump water and lift it to higher levels, the LIQB series is a very balanced and wise choice.