Pipeline purging gas velocity calculation

2019-09-26View Original

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When purging pipelines, the speed is required to be greater than 20 m/s. How should this speed be calculated?

Reply #22019-09-26

Flow rate = Volumetric flow rate / Cross-sectional area

Reply #32019-09-27

Calculation of the outlet flow rate of the purge pump: the outlet flow rate is determined based on the motor speed and the pump’s displacement. Calculate the flow velocity using the relationship between flow rate and pipe diameter. The flow rate varies with the pipe diameter.

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Pipeline purging gas velocity calculation

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