Reasons for holding pressure in magnetic pumps

　　Magnetic pump holding pressure refers to the magnetic pump in the operation process, due to the excessive counterpressure generated at the outlet, resulting in the phenomenon that the pump can not properly transport fluid. This situation may be caused by a variety of reasons, the following is a detailed analysis of the magnetic pump holding pressure:

　　First, the reason for holding pressure

　　Filter clogging:

　　If the filter at the inlet of the magnetic pump is clogged, it will lead to a reduction in the inlet flow, which will increase the outlet counterpressure.

　　Solution: clean the filter in time to ensure that the magnetic pump flow at the inlet is stable.

　　Pipe blockage:

　　If the medium conveyed by the magnetic pump is partially or completely blocked by the pipeline, it will lead to higher pressure in the pipeline, thus increasing the outlet counterpressure.

　　Solution: Regularly check the pipeline, clear the blockage to ensure that the pipeline is smooth.

　　Medium temperature is too high:

　　The high temperature of the medium conveyed by the magnetic pump may cause the medium to expand, thus affecting the flow and increasing the outlet counterpressure.

　　Solution: Take cooling measures to reduce the temperature of the medium to avoid the expansion of the medium to affect the flow.

　　Equipment leakage or blockage:

　　Magnetic pump equipment leakage or blockage (such as suction pipe leakage, bottom valve leakage, import and export blockage, etc.) may also lead to insufficient flow, which in turn triggers pressure holding.

　　Solution: check the suction pipe bottom valve, block the source of air leakage; clean up the foreign matter in the import and export; the depth of the bottom valve into the water should be greater than 1.5 times the diameter of the inlet pipe, increase the depth of the bottom valve into the water.

　　The rotational speed is too low or the impeller is worn:

　　Too low rotational speed of magnetic pump or wear of seal ring and impeller may also lead to insufficient flow, triggering pressure holding.

　　Solution: check the power supply voltage, increase the rotational speed of the magnetic pump; replace the sealing ring or impeller.