Gas pipe sizing

robert griggs

Does anyone know where I can find a chart for sizing gas piping for a 500 foot run? The chart I currently use only goes up to 200 feet.

I am trying to size a gas line to a 1,750,000 btu water heater, and the line must run approximately 475 feet from the meter on the other side of the building.

If anyone knows where I can find this info, I would appreciate it.

jackchips_2

Hi Robert,

I did a quick Google and came up with the following:

http://www.engineeringtoolbox.com/natural-gas-pipe-calculator-d_1042.html

My Boston Gas wheel shows you require a 4" line for that capacity and length based on a low pressure system (14" or under).

Hope this helps.

Jack

Jim M_2

NFPA -54 National gas fuel code.
4" pipe is good for 500' at 2,109,000 btu
at 1psi or less.

your BTU needs and distance require 4" Pipe

check with the local supplier of gas for the pressures and specifiv gravity of the gas in you area. then refer to the NFPA Gas Fuel code.

good luck,
Jim

Weezbo

the utility provider,...

often has salient information as to the BTU the gas they have available,main sizing,pressure available...minor technicalities as it is that might need to be taken into consideration...