Nominal Size	Pipe OD.	Working  Pressure	Dimensions
mm/in	mm/in	psi/Mpa	Lmm/in
25	33.7	300Psi 2.07Mpa	45
1	1.327		1.77
32	42.4		45
1¼	1.669		1.77
40	48.3		45
1½	1.9		1.77
50	60.3		51
2	2.375		2.01
65	73		57
2½	2.875		2.24
65	76.1		57
2½	3		2.24
80	88.9		64
3	3.5		2.51
100	108		76
4	4.25		3
100	114.3		76
4	4.5		3
125	133		82.5
5	5.25		3.24
125	139.7		82.5
5	5.5		3.24
125	141.3		82.5
5	5.563		3.24
150	159		89
6	6.25		3.5
150	165.1		89
6	6.5		3.5
150	168.3		89
6	6.625		3.5
200	219.1		108
8	8.625		4.25
250	273		120.5
10	10.75		4.74
300	323.9		133
12	12.75		5.23