ASME/ANSI B16.5 Class 600 Flange Dimensions & Standards

CLASS 600			FLANGE THICKNESS			LTB				DRILLING DATA
NOMINAL PIPE SIZE		FLANGE OUTSIDE DIAMETER	THICKNESS OF FLANGE MIN	BOSSED LENGTH	WELD NECK LENGTH	LAP JOINT LENGTH	LONG WELD NECK LENGTH	PITCH CIRCLE DIAMETER	BOLT HOLE DIAMETER	NUMBER OF BOLT HOLES	NOMINAL PIPE SIZE
MM	INCH	OD	T & T1	L	L1	L2	L3	PCD	H	#	MM	INCH
15	1/2	95	14.3	29	59	22	229	66.7	16	4	15	1/2
20	3/4	115	15.9	32	64	25	229	82.6	20	4	20	3/4
25	1	125	17.5	34	69	27	229	88.9	20	4	25	1
32	1 1/4	135	20.7	36	74	29	229	98.4	20	4	32	1 1/4
40	1 1/2	155	22.3	39	77	32	229	114.3	22	4	40	1 1/2
50	2	165	25.4	44	80	37	229	127	20	8	50	2
65	2 1/2	190	28.6	48	86	41	229	149.2	22	8	65	2 1/2
80	3	210	31.8	52	90	46	229	168.3	22	8	80	3
90	3 1/2	230	35	56	93	49	229	184.2	26	8	90	3 1/2
100	4	275	38.1	61	109	54	229	215.9	26	8	100	4
125	5	330	44.5	67	121	60	305	266.7	29	8	125	5
150	6	355	47.7	74	124	67	305	292.1	29	12	150	6
200	8	420	55.6	83	140	76	305	349.2	32	12	200	8
250	10	510	63.5	93	159	111	305	431.8	35	16	250	10
300	12	560	66.7	99	163	117	305	489	35	20	300	12
350	14	605	69.9	101	172	127	305	527	38	20	350	14
400	16	685	76.2	113	185	140	305	603.2	42	20	400	16
450	18	745	82.6	124	191	152	305	654	45	20	450	18
500	20	815	88.9	134	197	165	305	723.9	45	24	500	20
600	24	940	101.6	147	210	184	305	838.2	51	24	600	24

NOTES:

(1) Schedule of weld neck to be advised.

(2) LTB and bore size or schedule to be advised.

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ASME/ANSI B16.5 Class 600