ASME B16.5 Class 150 Socket Welding Flange

Technical Drawing

Dimensions of 150# SW Flanges

NPS	D	G	X	K
1/2	90	34.9	30	60.3
3/4	100	42.9	38	69.9
1	110	50.8	49	79.4
1-1/4	115	63.5	59	88.9
1-1/2	125	73.0	65	98.4
2	150	92.1	78	120.7
2-1/2	180	104.8	90	139.7
3	190	127.0	108	152.4

*D: outside diameter of flange; G: outside diameter of raised face; X: diameter of hub at base; K: diameter of bolt circle; For all  socket welding flanges of class 150, t (height of raused face)=2mm. All units are mm.

NPS	B	J	D	Y
1/2	15.8	22.2	10	14
3/4	20.9	27.7	11	14
1	26.6	34.5	13	16
1-1/4	35.1	43.2	14	19
1-1/2	40.9	49.5	16	21
2	52.5	61.9	17	24
2-1/2	62.7	74.6	19	27
3	77.9	90.7	21	29

*B: bore diameter of 150# SW flange, which is equal to that of a welding neck flange of same size or corresponds to the inside diameter of pipe as given in ASME B36.10 for standard wall pipe unless otherwise specified by purchaser; J:bore diameter of the socket; D: depth of socket; Y: length through hub; All units are mm.

NPS	n	d	l	L	T
1/2	4	5/8	1/2	55	9.6
3/4	4	5/8	1/2	65	11.2
1	4	5/8	1/2	65	12.7
1-1/4	4	5/8	1/2	70	14.3
1-1/2	4	5/8	1/2	70	15.9
2	4	3/4	5/8	85	17.5
2-1/2	4	3/4	5/8	90	20.7
3	4	3/4	5/8	90	22.3

* n: number of bolts; d: diameter of bolt holes; l: diameter of bolts;  T: minimum thickness of flange ; L: length of stud bolts for 2 mm raised face; All units are mm except that d and l are provided in inch.

ASME B16.5 Socket Welding Flanges (Class)
150#	300#	600#	1500#

*Click to view the dimensions and weights of socket-welding flanges of each pressure rating.