If you are using an existing gas line you must take into consideration the existing gas line capacities to ensure you will have proper pressure. This chart is for reference only, we recommend you consult with a Licensed Plumber/Gas Fitter or NFPA54 (National Fuel Gas Code - current edition) for more details.

Sizing low pressure natural gas pipe lines - Imperial units. The tables below can be used for natural gas pipe sizing. For natural gas the nominal BTU/ft3 varies from about 900 to 1100 BTU/ft3. In general it is common to set. - free apps for offline use on mobile devices.

Natural Gas flow is given in thou-sands of BTU/hour. One cubic foot of NG gas = 1000 BTU’s. Pipe length must include additional length for all fittings. Add approxi-mately 5 feet of pipe per fitting. Natural Gas Example: A burner that requires 374,000 BTU would need a 1” pipe for a …

Calculate capacities and dimensions of natural gas pipe lines. The capacity of a low pressure natural gas (less than 1 psi, 6.9 kPa) pipe line with a small pressure loss can be calculated …

NOTE: The sizing charts above list the specific pipe sizes required for the amount of BTU’s for a new gas line installations. If you are using an existing gas line you must take into consideration the existing gas line capacities to ensure you will have proper pressure.

(1) Measure the length of the pipe from the gas meter location to the most remote outlet on the system. (2) Locate that total length in the left-hand column of sizing table*, or the next longer distance where the table does not give the exact length.

Jan 15, 2024 · The gas pipe sizing chart provides a comprehensive reference for determining the ideal pipe size based on various factors, including the length of the pipe run and the required BTU (British Thermal Units) supply for the appliances connected to the system.

NOTE: The sizing charts above list the specific pipe sizes required for the amount of BTU's for a new gas line installations. If you are using an existing gas line you must take into consideration the existing gas line capacities to ensure you will have proper pressure.

With the help of a natural gas pipe sizing calculator, users can easily determine the correct pipe diameter based on key factors like gas flow rate, pipe length, pressure, and allowable pressure drop.

For SI units: 1 inch = 25 mm, 1 foot = 304.8 mm, 1 cubic foot per hour = 0.0283 m3/h, 1 pound-force per square inch = 6.8947 kPa, 1 inch water column = 0.249 kPa