TP24-09 2023 CTI Pitot Tube Blockage Study ReportThe Cooling Technology Institute (CTI) test codes have specified waterflow rate measurements by pitot tube traverse since the founding of the institute in the late 1950s. In this process, a calibrated pitot tube is used to traverse a pipe to collect velocity pressure data at multiple points. The average pipe velocity is then used to calculate the water flow rate. For decades, anecdotal evidence indicated that the Simplex pitot tube traditionally used