China drainage pumps manufacturers

From the perspective of pipeline installation technology, the suction pipeline requires strict sealing, and no air or water leaks, otherwise it will reduce the amount of water discharged by the centrifugal pump, or even pump water. Therefore, it is very important to do a good job of pipe connection. When the height, head and water temperature of the pipeline centrifugal pump installation site are different from the test conditions,

if the local altitude is above 300 meters or the pumped water temperature exceeds 20°C, the calculated value must be corrected. That is, the atmospheric pressure at different altitudes and the saturated steam pressure when the water temperature is higher than 20°C. In addition, there is also the resistance loss head of the suction pipe. The short pipeline layout, less fittings such as elbows, and large diameter water pipes can reduce the flow rate in the pipe.The installation of the pipeline centrifugal pump lies in the installation height of the centrifugal pump.

The installation height of China drainage pumps manufacturers the pump should be the head that allows the suction vacuum height to deduct the loss of the suction pipe, so the installation height of the pump cannot exceed the calculated value, otherwise the centrifugal pump will not be able to pump water.. The pump product manual or nameplate indicates that the suction is allowed under the premise of a standard atmospheric pressure.

installation height of a centrifugal pump refers to the vertical distance from the water surface of the water source to the center line of the centrifugal pump impeller. The vacuum height refers to the vacuum value of the water inlet section , And did not consider the loss of the water flow head after the suction pipe is equipped. However, when the water temperature is below 20°C, the saturated steam pressure is negligible

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