Rotameter

• Note: The rotameter's text label says "READ FLOAT AT LARGEST DIAMETER", meaning the reading is indicated on the larger diameter (or wider part) that is below the float.

This rotameter's minor is (1-1.2)/(10 intervals) = 0.02 gpm, so the flow rate it currently reads is 5x0.02 + 1 = 1.1 gpm or 1.1*3.79 ≈ 4.17 lpm (1 US Ga = 3.79 L).