We are developing a high purity hydrogen system (between the source and fab equipment) and need to determine the tube sizes. I have the peak flow rates and source/system pressures. How do I calculate this?

The brief response is that there are software application based programs that make use of the Colebrook and Darcy Equations that can offer you a response however you will certainly require a design to approximate television lengths and the number and kinds of fittings and valves in the system.

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