The nomograph is very simple to use: Locate capacity at the bottom of the graph, go vertically to the rotating speed, horizontally to TDH, and vertically to the pump specific speed.

What does a nomograph measure?

nomogram, also called nomograph, calculating chart with scales that contain values of three or more mathematical variables, widely used in medicine, engineering, industry, and the biological and physical sciences.

How do you plot nomograph?

So, draw a line (Example 1A) between the number of turns (80) and the ratio (0.5). Mark where the line crosses the Axis, which simply serves as a reference point. Next, draw a line (Example 1B) between the Axis point and the diameter of the coil (2.0) and read the coil inductance, which looks like 125 to 130 μH.