Natural Gas Pipe Sizing

[pneveu]

Does anyone know where to find natural gas pipe sizing and capacity charts that have 20# and 50# inlet pressures similar to the ones used in NFPA 54. They existed in the older versions of the code but seem to have been discontinued. I'm looking for the old charts I believe were printed in the mid 90's.

 

[PEDARRIN2]

I have lamented the deletion of some of the tables myself.

You could try to find an old code book and use it. I have a coworker who has done that - keeps an old version of NFPA 54 on his shelf.

Frankel's Facility Piping Systems Handbook has a chart for those pressures.

You could also use the compressed gas equations that are found in the appendix of the codes to calculate the pressure drops.