Maximum capacity shown in the drawing is for black iron piping for gas pressures of 0.5 psig or less and a pressure drop of 0.3-in. water column. This chart is based upon a specific gravity of 0.60 ...

Natural Gas Pipe Sizing. September 20, 2001. The problem: Replacing electric heating with gas. The apprentice: Allen Charles Edwards (ACE), a first-year mechanic. ... NATE and ACE are teamed together ...

Undersized gas pipe rears its ugly head as rough starts, poor combustion and inadequate performance. Look up the gas sizing chart in the install manual if there is any question. Just because there is ...