Lochinvar 1, 000 TABLE - M Recommended Gas Pipe Size, Single Appliance Installations, Table - N

TABLE - M

Recommended Gas Pipe Size

Single Appliance Installations

			Distance from Meter
Btu/hr
	0 - 50 ft.	51 - 100 ft.	101 - 200 ft.	201 - 300 ft.	301 - 500 ft.
1,500,000	2"	2 1/2"	3"		3 1/2"
1,700,000	2 1/2"	2 1/2"	3"	3"	3 1/2"
2,000,000	2 1/2"	3"	3"	3 1/2"	4"

For each elbow or tee, add equivalent straight pipe to total length from TABLE - O.

TABLE - N

Multiple Appliance Installations Gas Pipe Size Chart

Nominal							Length of Pipe in Straight Feet
Iron Pipe Size,
Inches
		10	20	30	40	50	60	70	80	90	100	125	150	175	200
3/4		369	256	205	174	155	141	128	121	113	106	95	86	79	74
	1	697	477	384	328	292	267	246	256	210	200	179	164	149	138
1	1/4	1,400	974	789	677	595	543	502	472	441	410	369	333	308	287
1	1/2	2,150	1,500	1,210	1,020	923	830	769	707	666	636	564	513	472	441
	2	4,100	2,820	2,260	1,950	1,720	1,560	1,440	1,330	1,250	1,180	1,100	974	871	820
2 1/2		6,460	4,460	3,610	3,100	2,720	2,460	2,310	2,100	2,000	1,900	1,700	1,540	1,400	1,300
	3	11,200	7,900	6,400	5,400	4,870	4,410	4,000	3,800	3,540	3,300	3,000	2,720	2,500	2,340
	4	23,500	16,100	13,100	11,100	10,000	9,000	8,300	7,690	7,380	6,870	6,150	5,640	5,130	4,720

Maximum Capacity of Pipe in Thousands of Btu’s per hour for gas pressures of 14 Inches Water Column (0.5 PSIG) or less and a pressure drop of 0.5 Inch Water Column (Based on NAT GAS, 1025 Btu’s per Cubic Foot of Gas and 0.60 Specific Gravity).

TABLE - O

Fittings to Equivalent Straight Pipe

Diameter Pipe Fitting (inches)

3/4"	1"	1 1/4"		1 1/2"		2"	3"	4"	5"
	Equivalent Length of Straight Pipe (feet)
2'	2'		3'		4'	5'	10'	14'		20'

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