Suction height of self-priming pump and pressure at the center of the pump
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I have a question. When looking online for information on self-priming pumps used with hot water, I found that it is stated that \"the atmospheric pressure at the installation site is 100 kPa, the suction height of the self-priming pump is 0.3 meters, and the pressure at the center of the pump while it is in operation is 70 kPa.\" Is there a mistake in these values of 0.3 meters for the suction height and 70 kPa for the pressure at the pump’s center? Isn’t 0.3m of water column equal to 3Kpa? How was this calculated?
There are also losses due to inhalation, as well as the kinetic energy of the fluid; all of these need to be taken into account