Centrifugal pump cavitation phenomenon: 1 sewage pump, the use of temperature of about 80 degrees, pump pressure rose to normal after the pump outlet pump normal, about 10 minutes rapid decline in pump pressure, with noise, vibration, cavitation occurs, Check the sewage station valve is closed, 2 material pump, material about 90 degrees easy to gasify the organic matter Pump open to pump pressure rose to normal, due to feed small pump outlet, pump outlet opening small, normal pump pressure, about 30 minutes pump Pressure drop, accompanied by noise and vibration cavitation occurs The above phenomenon occurs, there will be two situations: 1, a valve opening is not large; 2, the other is the pump inlet and outlet material temperature was significantly higher than the original Many found in these two cases of cavitation occurs because the outlet valve opening is not enough or not caused when the outlet valve is not open or opening hours, the material obtained from the pump is not timely delivery of energy is the kinetic energy of the material is obtained Into the heat, so that the material temperature rise, when reached a certain temperature cavitation occurs in the pump body. After analyzing the reasons for the clear solution to the pump outlet plus a return line, open the appropriate back to open the pump valve, there have been no cavitation.
Depressed Center-Grinding Disc
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