Deep well pump option points

Deep well pump options points: the various types of deep well pump on the market, just look very bad distinction. So how to choose deep well pump? Here are some deep well pump selection experience.
First, according to the well diameter, water quality initial pump type. Different types of pumps on the size of the wellbore diameter have certain requirements, the maximum size of the pump to be smaller than the diameter of 25 ~ 50mm. If the wellbore is skewed, the maximum dimensions of the pump should be smaller. In short, the pump part can not close the well wall to prevent the pump vibration will damage the well.
Second, according to the well of the water, select the flow of the pump. Each eye has an economically optimal effluent, and the flow rate of the pump should be equal to or less than the hour when the well water level drops to half the depth of the well. When the pumping capacity is greater than the well water output, it will cause the machine wall collapse and siltation, affecting the service life of the well; if the pumping capacity is too small, the benefits of the well will not be fully exploited. Therefore, the best way is to pump the pump test to the wells may provide the maximum amount of water for the selected well pump flow basis. Pump flow to the label model or instructions on the number of indicators prevail.
3. According to the depth of the well water level and the loss of the head of the pipeline, it is necessary to determine the head of the well pump, that is, the head of the well pump, which is equal to the vertical distance (net head) of the water level to the water level of the outlet pool plus the loss head. Loss of the head is usually the net head of 6 to 9%, usually 1 ~ 2m. Pump the bottom of the impeller into the water depth of 1 ~ 1.5m is appropriate. The total length of the downhole section of the pump tubing shall not exceed the maximum length of the well specified in the pump instructions.
Four, suggesting that wells with more than one ten thousandth of the wells, should not be installed using deep well pumps