Deep well pump selection what are the requirements

Deep well pump is immersed in the groundwater well to pump and pump water as a pump, the motor structure in the form of dry, semi-dry, oil-filled, wet these types. So we all know that the selection of deep well pump what are the requirements? Next to introduce the selection of deep well pump what are the requirements. Deep well pump selection What are the requirements First, according to the caliper, the initial water quality pump. Different types of pumps have certain requirements on the hole diameter. The maximum size of the pump is less than 25 ~ 50mm of the hole diameter. If the borehole skew, the maximum size of the pump should be smaller. In short, the part of the pump body can not close to the inner wall of the well to prevent the pump from damaging the well due to vibrations of the pump. Second, according to the well water, selected deep well pump flow. Each well has an economically optimal volume of water that should flow at a rate equal to or less than the level at which the well water level drops to half the well depth. When the pumping capacity is greater than the machine water, it will cause the machine wall collapse and siltation, affecting the life of the well; if the pumping is too small, the benefits of the well can not be fully realized. So, the best way is to pump wells pumping test, with the wells may provide the largest amount of water for the selected well pump flow basis. Pump flow to the label number or label on the manual shall prevail. Third, according to the depth of the well water level drop and the loss of water pipeline head, to determine the actual needs of the deep well pump lift, which is the head of the deep well pump, which is equal to the water level to the pool water surface vertical distance (net head) plus loss head. Lost head lift is usually 6 ~ 9% of the net head, usually 1 ~ 2m. Pump the lowest impeller into the water depth of 1 ~ 1.5m appropriate. The total length of the downhole portion of the pump tube shall not exceed the maximum length of the well into which it is specified in the pump instructions. Fourth, wells containing more than one ten thousandth of sediment wells, should not install the use of deep well pump. Because well water content is too large, such as more than 0.1%, will accelerate the wear of rubber bearings, causing pump vibration, shorten the pump life. Extended reading: China Construction Water Exhibition water pump manufacturers rankings ptc exhibition motor top ten brands pump valve pipe fittings Show Information Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http: // mj .liuti.cn / (Service Hotline:)

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