What is MLC in pump head?

What is MLC in pump head?

Definition of head and pressure Head is the height given by the pump to the fluid and it is measured in meters of liquid column [m.l.c.] or simply indicated in meters [m]. The given head is fluid independent: different fluids. with different specific gravities are all lifted at the same height.

What is the unit of pump head?

The unit of head is metres (m). The following expressions are also used in conjunction with the term head.

What is MLC pressure unit?

A column of water or any liquid in a vertical pipe exerts a certain pressure (force per unit area) on a hori- zontal surface at the bottom; this pressure is expressed in kg / cm2 or metre of liquid column (mlc). Hence, at the bottom it exerts a pressure of 1,000 kg / 10,000 cm2 or 0.1 kg / cm2.

Is head the same as pressure?

By definition, ‘Head’ is a measure of energy. The units of energy are feet (or meters). ‘Pressure’ is a force applied against a unit of area such as a pound of force applied to a square inch of area (psi).

Why head is very important parameters in pump?

Head is the height above the suction inlet that a pump can lift a fluid. It is a shortcut measurement of system resistance (pressure) which is independent of the fluid’s specific gravity. The required NPSH is an important parameter in preventing cavitation in a pump.

How do you calculate suction head?

Explanation: To calculate NPSH Available, take the source pressure , add the atmospheric pressure , subtract the losses from friction within the pipeline and subtract the vapor pressure of the fluid . The result equals the NPSHA (or Net Positive Suction Head Available) of your system.

Does a pump need head pressure?

This may or may not be the case when using pressure to define a pump’s characteristics. Although some pump manufacturers do use pressure to characterise their pumps, the vast majority of pumps are still characterised by the total head they produce.

Why is pressure measured in head?

The height of each column of fluid is proportional to the pressure of the fluid. So, for any particular measurement of pressure head, the height of a column of water will be about [133/9.8 = 13.6] 13.6 times taller than a column of mercury would be.