In this experiment, students determine the major losses due to friction in pipes and the minor losses due to elbows and valves. The loss over a long distance is measured between pressure taps #1 and #5 (shown in the picture above). The water velocity is measured using the Venturi tube attached to the General Flow Sensor.
https://www.pasco.com/products/complete-experiments/fluids/ex-5553#specs-panel
