NG pipe capacities for 10PSI

JUGHNE

Can anyone direct me to info on sizing NG gas piping for 10 PSI (capacities/length of black pipe at 10 PSI)??   Thanks for your help.

Tim McElwain

They are found

in ANSI Z223.1, NFPA 54 National Fuel Gas Code Table 6.3a Schedule 40 Metallic Pipe inlet pressure 10 PSI with a 1.0 pressure drop for PROPANE at specific gravity 1.50.



For NATURAL GAS the charts only go up to 5 PSI.



What is this for?

JUGHNE

Thanks Tim for checking

This is to advise/assist the local gas utility to relocate UG NG 10 PSI (I'm told) to an above ground location on the outside of a high school gym.  The 17# to 10# reg.  is 200' from the 10# to 4 ounces reg.  The load of 120,000 BTUH @ 4 ounces is 70' from the 10#/ounces reg.  The pipe size between regs is in question.  I have the 10# LPG charts and the 5 PSI NG charting.  Utility says this is a 10 # line.  Thanks again.

PS. the existing line is 1 1/4" iron pipe UG;  I'm thinking they could go quite smaller @ 10 PSI for the 200'.