Flange - Weld Neck, ANSI Class 75, Industry Standard (in)

Flange - Weld Neck, ANSI Class 75, Industry Standard (in) Industry Standard Flanges have no national standard code or are they covered by any governing body. Bolt circle diameters are 1/8 inch larger than bolt diameter. * To be specified by purchaser.
Pipe Size (NPS)	Outside Diameter of Flange A	Diameter of Raised Face B	Thickness of Flange C	Diameter of Bore D	Diameter of Hub at Weld H	Diameter of Hub at Base J	Length of Hub K	Number of Bolt Holes	Diameter of Bolt Holes	Bolt Circle Diameter P	Approx. Weight (lb)
26	31 1/2	28 5/8	1 1/4	*	26	27 1/8	3	32	1	29 5/8	98
28	33 1/2	30 5/8	1 1/4	*	28	29 1/8	3	36	1	31 5/8	105
30	35 1/2	32 5/8	1 1/4	*	30	31 1/8	3	36	1	33 5/8	110
32	38 1/4	35	1 1/4	*	32	33 3/8	3 1/4	36	1 1/8	36 1/8	140
34	40 1/4	37	1 1/4	*	34	35 3/8	3 1/4	40	1 1/8	38 1/8	150
36	42 1/4	39	1 1/4	*	36	37 3/8	3 1/4	40	1 1/8	40 1/8	160
42	49	45 1/2	1 1/4	*	42	43 3/4	3 1/2	48	1 1/4	46 3/4	210
48	55.00	51 1/2	1 1/4	*	48	49 3/4	3 3/4	52	1 1/4	52 3/4	240
54	61 1/4	57 3/4	1 1/4	*	54	56	4	64	1 1/4	59	310
60	67 1/4	63 3/4	1 1/4	*	60	62	4 3/8	72	1 1/4	65	400
66	74	70 1/8	1 3/8	*	66	68	4 7/8	72	1 3/8	71 1/2	560
72	80	76 1/8	1 5/8	*	72	74	5 1/4	80	1 3/8	77 1/2	700