Natural Gas Example: A machine with a burner that requires 440,000 BTU would need a 1 -1/4” pipe for a 20” long run. NOTE: The sizing charts above list the specific pipe sizes required for the amount of BTU’s for a new gas line installations.

Calculate capacities and dimensions of natural gas pipe lines. Multiple apartments and natural gas demand. Natural gas consumption in laboratory outlets. Burial dept and minimum cover of underground natural gas pipes. Sizing low pressure natural gas pipe lines - Metric units. Sizing natural gas pipes - pressures above 5 psi (35 kPa).

Gas piping should be sized in accordance with the tables in the Standard Gas Code or by other engineering methods approved by local Authority Having Jurisdiction. How to size gas piping. The Gas Code contains sizing tables and information that must be used to size most gas systems.

Natural Gas Pipe Capacity Diagram - 10% Pressure Drop. Download Natural Gas Piping Chart as pdf file

Table 1215.2 (1) through Table 1215.2 (36) shall be used to size gas piping in conjunction with one of the methods described in Section 1215.1.1 through Section 1215.1.3. [NFPA 54:6.2] 1 Table entries are rounded to 3 significant digits. 2 NA means a flow of less than 10 ft3/h (0.283 m 3 /h). * Table entries are rounded to 3 significant digits.

consult with a local gas professional to determine accurate btu availability. Use this chart as a guideline ONLY and does NOT account for variations in the type of pipe (plastic or iron.)

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas with a Gas Pressure of 0.5 psi or Less and a Pressure Drop of 1.0"WC (based on a 0.60 specific gravity gas)

*LCU Natural Gas Pipe Sizing Chart. Note: Chart below is for reference only. Always refer to National Fuel Gas Code and Trane provided unit literature for official values. Natural Gas Example: Using the chart above, a machine with a burner that requires 440,000 BTU would need a 1-1/4" pipe for a 20' run. WARNING:

Refer to our LP gas line sizing chart to equip appliances with tubing for propane tank fittings. Includes copper and polyethylene tubing sizes.

Choose your length and size from the drop down menus below. The maximum allowable BTU/Hr will be visible where the two lines intersect. This chart is based on low pressure natural gas (14" W.C.) with a dynamic pressure drop of no more than .30" W.C. in thousands.