Fuel Gas

Table 5 - Maximum Capacity* for Copper Tube in an Elevated Pressure System of 2 psig and Pressure Drop of 1.0 psig, CFH.**

Length of Tube, feet	Outside Diameter of Tube, Inches
	3/8	1/2	5/8	3/4	7/8	1 1/8	1 3/8
10	222	458	932	1629	2311	4,937	8889
20	153	315	641	1120	1589	3393	6109
30	123	253	515	899	1276	2725	4906
40	105	216	440	770	1092	2332	4199
50	93	192	390	682	968	2067	3721
60	84	174	354	618	877	1873	3372
70	78	160	325	569	807	1723	3102
80	72	149	303	529	750	1603	2886
90	68	140	284	496	704	1504	2708
100	64	132	268	469	665	1421	2558
125	57	117	238	415	589	1259	2267
150	51	106	215	376	534	1141	2054
175	47	97	198	346	491	1050	1890
200	44	91	184	322	457	976	1758
250	39	80	163	286	405	865	1558

(Based on atmospheric pressure at sea level)

Notes:
*Includes 20% factor for fittings.
**See Table 7.

Useful Resources

Table 1 Copper Tube: For Gas Installation
Type K | Type L
ACR | Type Gas

Table 2 Dimensions and Physical Characteristics of Copper Tube: TYPES K, L, ACR and Gas.

Table 3 Maximum Capacity for Copper Tube in a Low Pressure System of Less than 14 inches wc and Pressure Drop of 0.5 inches wc, CFH.

Table 4 Maximum Capacity for Copper Tube in a Low Pressure System of Less than 14 inches wc and Pressure Drop of 1 inch wc, CFH.

Table 5 Maximum Capacity for Copper Tube in an Elevated Pressure System of 2 psig and Pressure Drop of 1.0 psig., CFH. (Based on atmospheric pressure at sea level.)

Table 6 Maximum Capacity for Copper Tube in an Elevated Pressure System of 5 psig and Pressure Drop of 3.5 psig, CFH. (Based on atmospheric pressure at sea level.)

Table 7 Multipliers to be Used with Tables 3 through 6 When Specific Gravity of Gas is Other than 0.60.

Table 3LP Maximum Capacity for the Flow of Undiluted LP Gases Through Copper Tube in a Low Pressure System of Less than 14 inches wc and Pressure Drop of 0.5 inches wc, CFH.

Table 4LP Maximum Capacity for the Flow of Undiluted LP Gases Through Copper Tube in a Low Pressure System of Less than 14 inches wc and Pressure Drop of 1 inch wc, CFH.

Table 5LP Maximum Capacity for the Flow of Undiluted LP Gases Through Copper Tube in an Elevated Pressure System of 2 psig and Pressure Drop of 1.0 psig., CFH. (Based on atmospheric pressure at sea level.)

Table 6LP Maximum Capacity for the Flow of Undiluted LP Gases Through Copper Tube in an Elevated Pressure System of 5 psig and Pressure Drop of 3.5 psig, CFH. (Based on atmospheric pressure at sea level.)

Table 8LP Maximum Capacity for the Flow of Undiluted LP Gases Through Copper Tube in a Low Pressure System of Less than 14 inches wc and Pressure Drop of 2.5 inches wc, CFH.