Transcription of Understanding Net Positive Suction Head - Pump School
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Understanding Net Positive Suction Head - Pump School
Understanding Net Positive Suction Head Atmospheric Pressure Until the early 17th century air was largely misunderstood. Evangelista Torricelli, an Italian scientist, was one of the first to discover that air, like water, has weight. He once said, We live submerged at the bottom of an ocean of the element air. The weight of this ocean of air exerts a force on the Earth s surface called atmospheric pressure. Torricelli went on to develop the mercury barometer which now allowed for quantifiable measurement of this pressure.
Net Positive Suction Head (NPSH) NPSH can be defined as two parts: NPSH Available (NPSH A): The absolute pressure at the suction port of the pump. AND . NPSH Required ... When the pump is running, the reading from this gauge will be equal to your NPSH A, less vapor pressure. If after
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