Pipeline flow velocity
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Our company is currently designing a naphtha unloading system. The flow rate of the unloading pump is 150 m³/h, and the pipe at the pump outlet has a diameter of DN150; however, the diameter reduces to DN80 over a length of about 30 cm before reaching the tank. I would like to ask if a DN80 pipe is sufficient under operating conditions, given that the pump flow rate is around 120 m³/h
Everyone, let me add that the pipe with a reduced diameter of DN80 connects to the joint pipe of DN800.
No, the flow rate is too high; it’s over 3 m/s! With such a sudden change in diameter, the pressure will be very high, causing significant local damage!