Instrument and Meter Manufacturer
LFP4024 Series Micro Brushless DC Water Pump
The LFP4024 series micro brushless DC water pump is a high-performance pump specifically designed for high-temperature applications. Manufactured by Hangzhou Lefu Electromechanical Manufacturing Co., Ltd., this pump offers a compact and efficient solution for a variety of industrial and commercial applications requiring water circulation. The LFP4024 series provides excellent durability, reliability, and energy efficiency. Below, we outline the pump’s key features, technical specifications, and installation guidelines to help you understand its performance and applications.
Key Features:
- LFP4024 series features a small and lightweight design, making it ideal for use in constrained spaces.
- The brushless motor ensures low energy consumption and high efficiency, making it a reliable option for continuous operations.
- This pump can operate in environments with temperatures up to 105°C (without crystallization), making it suitable for high-temperature fluid circulation.
- The pump operates at a noise level of ≤35 dB(A), ensuring minimal disturbance during operation.
- The pump has a life expectancy of up to 5,000 hours, providing extended use and reducing the frequency of replacements.
- It supports PWM speed control and 0-5V speed control, with or without speed adjustment, providing flexibility based on operational needs.
Performance Specifications:
The LFP4024 series offers various models with different flow rates and head heights, catering to diverse applications. Here’s a breakdown of the basic parameters:
| Model | Flow Rate (L/min) | Head (m) | Max Current (A) | Power (W) |
|---|---|---|---|---|
| LFP4024-03006AG | 3 | 0.6 | 0.13 | 3 |
| LFP4024-04010AG | 4 | 1.0 | 0.23 | 5.5 |
| LFP4024-04018AG | 4 | 1.8 | 0.23 | 5.5 |
| LFP4024-05014AG | 5 | 1.4 | 0.31 | 7.5 |
| LFP4024-06020AG | 6 | 2.0 | 0.42 | 10 |
| LFP4024-07025AG | 7 | 2.5 | 0.52 | 12.5 |
| LFP4024-08030AG | 8 | 3.0 | 0.75 | 18 |
| LFP4024-08040AG | 8 | 4.0 | 0.75 | 18 |
The flow curves for these models are essential for understanding how the pump performs across different flow rates and heads. The graph (on page 4) visually illustrates the relationship between flow rate and head height, showing that higher flow rates result in lower head heights and vice versa.
Technical Specifications:
- Insulation Grade: F-class insulation ensures the pump can operate reliably at higher temperatures without risk of electrical failure.
- Protection Class: With an IP55 protection level, the pump is resistant to dust and water ingress, ensuring durability in various environmental conditions.
- Operating Conditions:
- Rated Voltage: DC 24V ±10%
- Voltage Range: 18V-30V
- Ambient Temperature: -20°C to 40°C (no crystallization)
- Medium Temperature: -20°C to 105°C (no crystallization)
- Recommended Medium: Clean water without solid or magnetic particles
Installation and Usage:
Proper installation is crucial to ensure optimal performance and longevity of the pump. The recommended installation guidelines include:
- Water Pipe Connections: Use a DN12 inlet pipe and DN8 outlet pipe.
- Mounting Orientation: It is recommended to install the pump with the outlet facing upwards to facilitate gas venting. Avoid installations with the inlet or outlet facing downwards.
- Pipe and Cable Length: The pump is designed with a 340mm ± 15mm cable (20AWG*2), and the inlet pipe length should be no less than 1 meter for optimal flow.
Safety and Protection Features:
The LFP4024 series pump incorporates multiple protection mechanisms to enhance safety and reliability:
- Reverse Polarity Protection: Prevents damage when the input voltage is incorrectly connected.
- Overvoltage Protection: Shuts the pump down when voltage exceeds 30V ±1V.
- Undervoltage Protection: Stops the pump when voltage drops below 18V ±1V.
- Dry Run Protection: Automatically stops the pump when no liquid is present to avoid damage.
- Overcurrent Protection: Stops the pump in case of excessive current flow.
- Lock Rotor Protection: Ensures the pump stops if the rotor gets stuck, preventing motor damage.
Reliability and Durability Testing:
- Pressure Testing: The pump can withstand 0.2 MPa of gas pressure for 20 seconds without leaks.
- Continuous Running Test: Operates continuously for 5000 hours at a water temperature of 98°C without any leakage, motor lock, or abnormal noise.
- Thermal and Cold Storage Testing: The pump performs optimally even after exposure to high (60°C) or low (-40°C) temperatures for extended periods.
Troubleshooting and Maintenance:
The LFP4024 series comes with a comprehensive troubleshooting guide. Common issues include:
- Leakage: Caused by improperly installed O-rings or screws. Solutions include reinstalling or tightening components.
- Reduced Flow: May occur due to debris in the impeller path or insufficient voltage. Cleaning the pump or adjusting voltage levels typically resolves the issue.
- No Rotation or High Noise: Caused by power connection issues, foreign objects in the pump, or dry running. Ensure proper connection and clear the pump of any debris.
Conclusion:
The LFP4024 series micro brushless DC water pump is designed to deliver superior performance, reliability, and efficiency in high-temperature and continuous-use applications. With its robust safety features, long service life, and low energy consumption, this pump is an ideal choice for demanding environments. Whether you are working with clean water or need a pump for various industrial tasks, the LFP4024 series guarantees high-quality results.
