The motor type brushless DC water pump is composed of a brushless DC motor and an impeller. The shaft of the motor is connected to the impeller, and between the stator and rotor of the water pump
There are gaps, and if used for a long time, water will seep into the motor, increasing the possibility of motor burnout.
Advantages: Brushless DC motors have been standardized and mass-produced by specialized manufacturers, resulting in lower costs and higher efficiency.
Brushless DC Magnetic Isolation Solar Water Pump: The brushless DC water pump adopts electronic component commutation, without the need for carbon brush commutation. It adopts high-performance wear-resistant ceramic shaft and ceramic sleeve, which are connected to the magnet through injection molding to avoid wear and tear. Therefore, the lifespan of the brushless DC magnetic water pump is greatly enhanced. The stator and rotor parts of the magnetic isolation water pump are completely isolated. The stator and circuit board parts are sealed with epoxy resin, 100% waterproof. The rotor part is made of permanent magnet. The water pump body is made of environmentally friendly materials, with low noise, small volume, and stable performance. Various required parameters can be adjusted through the winding of the stator, allowing for wide voltage operation.
Advantages: Long lifespan, low noise can reach below 35dB, and can be used for hot water circulation. The stator and circuit board of the motor are sealed with epoxy resin and completely isolated from the rotor, which can be installed underwater and completely waterproof. The shaft of the water pump is made of high-performance ceramic shaft, with high accuracy and good seismic resistance.
According to the fact that everything has opposites, where there are advantages, there will be disadvantages. What are the disadvantages of solar water pumps? The upfront cost is relatively high, and the initial investment in installing the system may be costly for some systems depending on the size of the required water pump; Intermittent, requiring good sunlight exposure, especially during the prime time of 9am to 3pm, while cloudy days convert to lower output, which may be a potential issue in some applications. A key fact of energy dispersed solar water pumps is that they only provide electricity during the day. In many cases, this is sufficient for the intended use, but if the sun sets and pumping is required, a water pump with battery storage should be considered.