Deep well submersible pump selection

Deep well pump is a water and water pump directly into the water into the work of water lifting equipment, it is suitable for the groundwater from the deep wells can also be used for rivers, reservoirs, drains and other water lifting projects: mainly for farmland irrigation and plateau mountain water, Also available for cities, factories, railways, mines, site for drainage use. However, some users due to improper choice, there is not installed into the water shortage, pumping no water, and even damage to the wells and other issues. So, Shanghai weihu deep well submersible pump manufacturers tell users how to choose deep well pump?
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 a net head of 6 to 9%, usually 1 ~ 2m. Water pump the bottom of a impeller into the water depth to 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. The following are the same as the "
Fourth, the well water sediment concentration of more than one ten thousandth of the wells, should not be installed using stainless steel deep well pump. Because the well water sediment concentration is too large, such as more than 0.1%, will accelerate the wear of rubber bearings, causing pump vibration, shorten the pump life.