ASME B16.47 Series A Flanges Class 150

Technical Drawings

Dimensions of 150# B16.47 Series A flanges.

NPS	D	K	G	X
26"	870	806.4	749	676
28"	925	863.6	800	727
30"	985	914.4	857	781
32"	1060	977.9	914	832
34"	1110	1028.7	965	883
36"	1170	1085.8	1022	933
38"	1240	1149.4	1073	991
40"	1290	1200.2	1124	1041
42"	1345	1257.3	1194	1092
44"	1405	1314.4	1245	1143
46"	1455	1365.2	1295	1197
48"	1510	1422.4	1359	1248
50"	1570	1479.6	1410	1302
52"	1625	1536.7	1461	1353
54"	1685	1593.8	1511	1403
56"	1745	1651.0	1575	1457
58"	1805	1708.2	1626	1508
60"	1855	1759.0	1676	1559

*D: outside diameter of flange; K: diameter of bolt circle; G: diameter of raised face; X: diameter of hub of flange; All dimensions are in mm.

NPS	A	TBL	TWN	Y
26"	660.4	66.7	66.7	119
28"	711.2	69.9	69.9	124
30"	762.0	73.1	73.1	135
32"	812.8	79.4	79.4	143
34"	863.6	81.0	81.0	148
36"	914.4	88.9	88.9	156
38"	965.2	85.8	85.8	156
40"	1016.0	88.9	88.9	162
42"	1066.8	95.3	95.3	170
44"	1117.6	100.1	100.1	176
46"	1168.4	101.6	101.6	184
48"	1219.2	106.4	106.4	191
50"	1270.0	109.6	109.6	202
52"	1320.8	114.3	114.3	208
54"	1371.6	119.1	119.1	214
56"	1422.4	122.3	122.3	227
58"	1473.2	127.0	127.0	233
60"	1524.0	130.2	130.2	238

*A: Diameter of hub top of WN; T_BL: minimum thickness of blind flange; T_WN: minimum thickness of WN flange. Y: length through hub of WN; t: 2mm height of RF for Class 150 Series A flange. All dimensions are in mm.

NPS	n	d	l	r
26"	24	1-3/8	1-1/4	10
28"	28	1-3/8	1-1/4	11
30"	28	1-3/8	1-1/4	11
32"	28	1-5/8	1-1/2	11
34"	32	1-5/8	1-1/2	13
36"	32	1-5/8	1-1/2	13
38"	32	1-5/8	1-1/2	13
40"	36	1-5/8	1-1/2	13
42"	36	1-5/8	1-1/2	13
44"	40	1-5/8	1-1/2	13
46"	40	1-5/8	1-1/2	13
48"	44	1-5/8	1-1/2	13
50"	44	1-7/8	1-3/4	13
52"	44	1-7/8	1-3/4	13
54"	44	1-7/8	1-3/4	13
56"	48	1-7/8	1-3/4	13
58"	48	1-7/8	1-3/4	13
60"	52	1-7/8	1-3/4	13

*n: number of bolt holes; d: diameter of bolt hole; l: diameter of bolt; r: minimum fillet radius for WN. d and l are in inch units, while r is in mm unit.

ASME B16.47 Series A Flanges, by Class
150	300	400	600	900	-
ASME B16.47 Series B Flanges, by Class
75	150	300	400	600	900

*Click to view the dimensions and weights of flanges of ASME B16.47 Series A and Series B at any pressure rating.