Edwin Drainage Pump Export

 During the operation of the pump, impurities deposited or formed in the sealed cavity must be flushed. Now shaft seal devices generally use mechanical seals. According to statistics, the failure of the mechanical seal causes the failure of the pump to account for more than 50% of the equipment failure rate. Analysis of the cause of mechanical seal leakage. The working principle of the centrifugal pump and the function of the mechanical seal device. The mechanical seal is one of the main wearing parts of centrifugal pumps, so most of the pump failures are caused by seal failure. When the newly installed (or replaced) mechanical seal is put into operation, the leakage should be within the allowable Self-Priming JET Pumps range. Auxiliary facilities of mechanical seal-flushing device Flushing device is the main auxiliary facility of mechanical seal. Second, the principle of mechanical seal The mechanical seal is an axial end face sealing device that relies on the pre-tensioning of the dynamic and static ring end face seal pairs by the elastic element and the compaction of the medium pressure and the pressure of the elastic element. In order to reduce leakage, shaft end sealing devices are generally installed at the static and dynamic gaps. If there are no problems with the structure, manufacturing quality, installation and use of the seal itself, its life span will exceed 8000h. As long as the impeller keeps rotating, the liquid will be sucked and discharged continuously. 3. The end faces of the moving ring are pressed against the end faces of the static ring by the pressure of the liquid in the sealed chamber, and an appropriate specific pressure is generated on the end faces of the two rings and the layer is kept extremely thin , Self-Priming JET Pumps ...ادامه مطلب

Too high temperature and pump dry running are the direct factors that cause demagnetization. The thrust bearing is wo, causing the inner rotor and the isolating sleeve friction magnetic pump to not run for a long time under certain working conditions, such as evacuation, cavitation, high temperature, etc. So we need to pay attention to avoid all occurrences of pump idling and too high temperature. In addition, there are other degaussing reasons. If the flow is too small for a long Self-priming Surface Pumps Manufacturers time or the outlet valve is closed for too long during operation, the temperature of the inteal medium of the pump will increase, the lubrication of the pump's bearings will also become worse, and the temperature will be higher. The sleeve will be damaged after a long time. Do not pay attention to cleaning during maintenance, and iron filings are adsorbed The inner magnetism causes the isolation sleeve to wear through; 3. The axial gap between the inner rotor and the isolation sleeve is too small, causing friction and loss of magnetism. 4. There are many reasons for too high temperature. The inteal cooling/lubrication pipeline will be blocked by dirt, which will cause the temperature of the inteal and exteal magnetic cylinders to rise rapidly, and there is a possibility of loss of magnetism; 2.2019-12-27 Magnetic pump demagnetization is an easy cause of damage.. 1 5. These chemical properties affect the selection of pump materials and pump types. At this time, the corresponding disassembly and inspection should be carried out, and the parts that cause the excessive clearance should be repaired or replaced. The problem of forward and reverse rotation: whether the user will use the reverse pumping when using the gear pump, if necessary, indicate it when selecting the type, and pay attention to issues such as machine seal selection.According to different chemical pump materials, the application fields are classified as follows: 　 ,Self-priming Surface Pumps Manufacturers ...ادامه مطلب