This apparatus is used to measure the velocity of fluid in the pipe. This apparatus is also used to measure the coefficient of pitot tube. The system is closed circuit. The apparatus consists of:A Centrifugal pump of 25mm x 25mm with 12 HP Motor (ISI – Kirlosker Make) M.S. Sump Tank 80 Ltr. to collect the water. M.S. Measuring Tank 30 Ltr fitted with piezometer tube to measure the discharge. Damper is used to collect the water in M.S. MEASURING TANK for certain time.