Pressure of fluid column

A vertical column of fluid exerts a pressure due to the column’s weight. The relationship between column height and fluid pressure at the bottom of the column is constant for any particular fluid (density) regardless of vessel width or shape. This principle makes it possible to infer...
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How pressure switch work ?

A pressure switch is one detecting the presence of fluid pressure. Pressure switches often use diaphragms or bellows as the pressure-sensing element, the motion of which actuates one or more switch contacts. A pressure switch will be in its “normal” status when it senses minimum pressure (e.g. an...
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