Based on using carbon steel pipe (A53-GR B) filled with water
				Spans are based on insulated and uninsulated lines below 650 Deg. F
Nom.		Wall	Alowable
Pipe	Pipe	Thickness	Span	Deflection
Size	Sch.	Inches	Ft- In (mm)	Inches (mm)	Ft- In (mm)	Ft- In (mm)
3/4"	80	0,154	10'-0" (3048)	3/8" (10)	7'-0" (2134)	8'-0" (2438)
1"	80	0,179	13'-0" (3962)	1/2" (13)	9'-0" (2743)	10'-0" (3048)
1-1/2"	80	0,200	17'-0" (5182)	3/4" (19)	11'-0" (3353)	13'-0" (3962)
2"	40	0,154	19'-0" (5791)	1" (25)	12'-0" (3658)	14'-0" (4267)
2"	80	0,218	20'-0" (6096)	1" (25)	13'-0" (3962)	15'-0" (4572)
3"	40	0,216	25'-0" (7620)	1" (25)	16'-0" (4877)	18'-0" (5486)
4"	40	0,237	27'-0" (8230)	1" (25)	18'-0" (5486)	20'-0" (6096)
6"	40	0,280	33'-0" (10058)	1" (25)	22'-0" (6706)	25'-0" (7620)
8"	30	0,277	36'-0" (10973)	1" (25)	24'-0" (7315)	27'-0" (8230)
10"	20	0,250	38'-0" (11582)	1" (25)	25'-0" (7620)	29'-0" (8839)
10"	40	0,365	41'-0" (12497)	1" (25)	27'-0" (8230)	31'-0" (9449)
12"	20	0,250	40'-0" (12192)	1" (25)	26'-0" (7925)	30'-0" (9144)
12"	Std	0,375	44'-0" (13411)	1" (25)	29'-0" (8839)	33'-0" (10058)
14"	10	0,250	42'-0" (12802)	1" (25)	27'-0" (8230)	31'-0" (9449)
14"	Std	0,375	46'-0" (14021)	1" (25)	30'-0" (9144)	34'-0" (10363)
16"	10	0,250	44'-0" (13411)	1" (25)	28'-0" (8534)	33'-0" (10058)
16"	Std	0,375	48'-0" (14630)	1" (25)	31'-0" (9449)	36'-0" (10973)
18"	10	0,250	45'-0" (13716)	1" (25)	29'-0" (8839)	34'-0" (10363)
18"	Std	0,375	50'-0" (15240)	1" (25)	33'-0" (10058)	38'-0" (11582)
20"	10	0,250	47'-0" (14326)	1" (25)	31'-0" (9449)	36'-0" (10973)
20"	20	0,375	52'-0" (15850)	1" (25)	34'-0" (10363)	39'-0" (11887)
24"	10	0,250	49'-0" (14935)	1" (25)	32'-0" (9754)	37'-0" (11278)
24"	20	0,375	55'-0" (16764)	1" (25)	36'-0" (10973)	41'-0" (12497)