Large self-priming pump start-up and operating instructions

2019 - 10 - 28

large self-priming pump start-up and operation instructions: 1, inching self-priming pump, pay attention to the turning of the pump shaft is correct. 2, pay attention to the rotation noise and vibration is normal. 3, pay attention to the pressure gauge and vacuum meter readings, starting when the pressure gauge and vacuum gauge after reading instruction due to the variation of stable over a period of time, after that the water pump has been on the inside liquid, in normal infusion operation. 4, in the normal infusion pump into the operation of money namely the self-priming process, should pay special attention to pump water temperature rise within the case, if the process is too long, pump the water temperature is too high, stop the water pump to check its reason. 5, if the high temperature caused by the liquid in the pump self-priming difficulties, you can temporarily stop, using the out line of the liquid flow back to pump or to add on the pump body chu added directly to the pump inlet place inside the liquid, the lower the temperature of the liquid in the pump, then starting. 6, pump in the process of work such as a strong vibration and noise, is likely to be caused by a pump cavitation occurred, the causes of cavitation has two kinds: one is the inlet pipe flow is too large, the second is the practical high absorption. When flow velocity is too large, can adjust export control valve, temperature gauge readings, at the inlet pipe jams should be promptly eliminate; When suction is too high, can decrease the pump mounting height. 7, pump in the process of work for water pump stopped, when to start again, export control valve slightly open, Don't full close) , is advantageous to the self-priming process gas from the outlet, vomit and to ensure the pump starts under a lighter load. 8, pay attention to check whether there is any leakage phenomenon on piping system.

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