Which Is Suction Head?

The head or height to which water can be raised on the suction side of the pump by atmospheric pressure.

What is suction head in pumps?

Suction Head – The inlet pressure of a pump when above atmospheric pressure. Suction Lift – The inlet pressure of a pump when below atmospheric pressure.

Is the negative suction head?

Distance of the liquid source above or below the pump inlet, measured in feet: can be positive OR negative. Positive suction head occurs when the top of the water source is above the suction Inlet of the pump. Negative elevation refers to suction lift (like from a pond, tank lower than the pump, etc.)