Relationship between sewage pump head, pressure, pipeline material 

What is the concept of sewage pump head? The head is the energy increment of the liquid per unit weight from the pump

 inlet to the outlet. For a volumetric pump, the energy increment is mainly reflected in the increase in pressure energy, so the 

pressure increment is usually expressed in the replacement of the head. The efficiency of the pump is not an independent 

performance parameter, it can be calculated according to the formula for other performance parameters such as flow rate, head and shaft power.

Conversion of pressure units: 1 MPa = 10Kg pressure; 1Kg pressure = 10m head

The head of the sewage pump is mainly used to overcome pipeline losses and vertical height. But it has a lot to do with the 

flow rate of the pump and the material of the pipeline.

The flow rate of cast iron pipe is

1.6 meters of tube length loss of 100 meters at 90 cubic meters per hour.

100 meters of tube length loss is 2.3 meters at 120 cubic meters per hour.

100 meters of tube length loss is 4.2 meters at 150 cubic meters per hour.

100 meters of tube length loss is 6.4 meters at 180 cubic meters per hour.

9.4 meters of tube length loss of 100 meters at 230 cubic meters per hour.

The losses of galvanized pipes and plastic pipes are much smaller than those of cast iron pipes, so they can be halved. In addition, 

each elbow folding pipe is 25 meters long, 14*25=350 meters. If the flow rate of the cast iron pipe is 180 cubic meters per hour, the loss is 22.4 meters.

The above data are just a rough reference data. If you have specific questions, please contact us Dingfei Pump Industry. We will 

help you come up with a suitable solution based on your specific situation.