High Purity Requirements: The magnetic pump uses a high-precision miniature magnetic pump, which is driven by magnetic force. There is no shaft connection between the pump head and the motor, which can ensure the filling accuracy and avoid the problem of impurity mixing that may be caused by mechanical connection. Therefore, it is especially suitable for liquid fertilizers with high purity requirements, such as special liquid fertilizers used in high-end flower cultivation, soilless cultivation and other fields. If impurities are mixed into these fertilizers, it may affect the growth of plants or block the irrigation system.
Low Viscosity: Generally speaking, liquids with low viscosity are easier to be driven and transported by the impeller of the magnetic pump, which can ensure the smooth flow of the liquid in the pipeline and achieve accurate metering and filling. For example, some common water-soluble foliar fertilizers containing basic nutrient elements such as nitrogen, phosphorus and potassium have low viscosity and good fluidity, making them suitable for filling by magnetic pumps, which can ensure that the filling volume is accurate every time.
No Solid Particles: Due to the relatively delicate internal structure of the magnetic pump, if the liquid fertilizer contains solid particles, it may cause wear and blockage of the pump's impeller, affecting the filling accuracy and the service life of the equipment. Therefore, it is suitable for those liquid fertilizers that have been finely filtered and completely dissolved, such as some fully soluble liquid compound fertilizers made by advanced production processes. Without solid impurities, they are very suitable for filling by magnetic pumps.
Stable Chemical Properties: The materials commonly used in magnetic pumps may corrode or undergo other chemical reactions when in contact with liquids with special chemical properties such as strong corrosiveness and strong oxidizing properties, thus affecting the performance and service life of the pump. Therefore, liquid fertilizers with stable chemical properties, such as conventional neutral or nearly neutral liquid fertilizers like urea solution and potassium sulfate solution, are more suitable for filling by magnetic pumps.
However, with the development of technology, some magnetic pumps with special designs and material improvements can also, to a certain extent, adapt to slightly more complex filling scenarios of liquid fertilizers with medium viscosity and slight corrosiveness.
