ASME B16.47 Series B Flanges Class 600

Technical drawings

Dimensions

NPS	D	K	G	X
26	890	806.4	727	698
28	950	863.6	784	752
30	1020	927.1	841	806
32	1085	984.2	895	860
34	1160	1054.1	953	914
36	1215	1104.9	1010	968

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

NPS	A	TBL	TWN	Y
26	660.4	111.3	111.2	181
28	711.2	115.9	115.9	190
30	762.0	127.0	125.5	205
32	812.8	134.9	130.2	216
34	863.6	144.2	141.3	233
36	914.4	150.9	146.1	243

*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: 7mm height of RF for Class 600 Series B flange. All dimensions are in mm units.

NPS	n	d	l	r
26	28	1-3/4	1-5/8	13
28	28	1-7/8	1-3/4	13
30	28	2	1-7/8	13
32	28	2-1/8	2	13
34	24	2-3/8	2-1/4	14
36	28	2-3/8	2-1/4	14

*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 for ASME B16.47 Series B welding neck flanges and blind flanges of each pressure rating.