Things To Note When Calculating The Installation Height Hs Of A Centrifugal Pump

It should be noted that the Hs value given in sample sanitary pump is the value when clean water is used as the working medium, the working condition is 20°C, and the pressure is 1.013x105Pa. When the use conditions and the working medium are different, conversion is required. 1. Transporting clean water, but the working conditions are different from the experimental conditions. It can be converted according to the following formula: Hs1=Hs+Ha-10.33-Hu-0.24 2. Transporting other liquids. : The first step is to convert Hs1 from sample sanitary pumps according to the above formula; the second step is to convert Hs1 to H?s2 according to the following formula NPSH △h For oil sanitary centrifugal pump, use NPSH Oh to calculate the installation height, that is, sanitary centrifugal pumps allows the vacuum degree of the absorbed liquid, that is, centrifugal sanitary pumps allows the installation height in meters. Use NPSH △h to check from the oil centrifugal pump sanitary sample, and its value is also measured with 20°C water. If other liquids are transported, calibration is also required. Please refer to relevant books for details.
Suction lift = standard atmospheric pressure (10.33 meters) - NPSH - safety volume (0.5 meters). Standard atmospheric pressure can make the vacuum height of the pipeline reach 10.33 meters.