Pipe Spacing - Flange to Flange for ANSI Class 150 to 1500

Pipe Spacing - Flange to Flange for ANSI Class 150 to 1500 Pipe spacing is figured for 1 inch between flanges. Dimensions are from center of pipe to center of pipe.
Pipe Size (NPS)	1	1 1/2	2	2 1/2	3	3 1/2	4	6	8	10	12	14	16	18	20	22	24
1/2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3/4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1	6 1/16	6 5/8	7 3/8	7 15/16	8 3/8	-	9 1/4	10 7/8	12 5/8	14 5/8	16 3/8	17 7/8	19 3/8	21 1/8	22 1/2	-	26 1/8
1 1/4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1 1/2	-	7	7 3/4	8 5/16	8 3/4	-	9 5/8	11 1/4	13	15	16 3/4	18 1/4	19 3/4	21 1/2	22 7/8	-	26 1/2
2	-	-	8 1/4	8 3/16	9 1/4	-	10 1/8	11 3/4	13 1/2	15 1/2	17 1/4	18 3/4	20 3/4	22	23 3/8	-	27
2 1/2	-	-	-	9 5/16	9 3/4	-	10 5/8	12 1/4	14	16	17 3/4	19 1/4	20 3/4	22 1/2	23 7/8	-	27 1/2
3	-	-	-	-	10	-	10 7/8	12 1/2	14 1/4	16 1/4	18	19 1/2	21	22 3/4	24 1/8	-	27 3/4
3 1/2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
4	-	-	-	-	-	-	11 5/8	13 1/4	15	17	18 19/25	20 1/4	21 3/4	23 1/2	24 7/8	-	28 1/2
5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
6	-	-	-	-	-	-	-	14 1/4	16	18	19 3/4	21 1/4	22 3/4	24 1/2	25 7/8	-	29 1/2
8	-	-	-	-	-	-	-	-	17 1/4	19 1/4	21	22 1/2	24	25 3/4	27 1/8	-	30 1/4
10	-	-	-	-	-	-	-	-	-	20 1/2	22 1/4	23 3/4	25 1/4	27	28 3/8	-	32
12	-	-	-	-	-	-	-	-	-	-	23 3/4	25 1/4	26 3/4	28 1/2	29 7/8	-	33 1/2
14	-	-	-	-	-	-	-	-	-	-	-	26 1/4	27 3/4	29 1/2	30 7/8	-	34 1/2
16	-	-	-	-	-	-	-	-	-	-	-	-	29	30 3/4	32 1/8	-	35 3/4
18	-	-	-	-	-	-	-	-	-	-	-	-	-	31 1/2	32 7/8	-	36 1/2
20	-	-	-	-	-	-	-	-	-	-	-	-	-	-	34 1/8	-	37 3/4
22	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
24	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	40