JIS B2220 20K Flange

JIS20K					LTB		DRILLING DATA
NOMINAL PIPE SIZE		OUTSIDE DIAMETER OF FLANGE	THIKNESS OF FLANGE	THIKNESS OF BLIND	BOSSED LENGTH SOH.SW LI	WELD NECK LENGTH	PITCH CIRCLE DIAMETER	NUMBER OF BOLT HOLES	BOLT HOLE DIAMETER
MM	INCH	C	T	T1	L	L1	PCD	#	H
10	3/8	90	14	14	20	33	65	4	15
15	1/2	95	14	14	20	34	70	4	15
20	3/4	100	16	16	22	36	75	4	15
25	1	125	16	16	24	38	90	4	19
32	1 1/4	135	18	18	26	41	100	4	19
40	2 1/2	140	18	18	26	41	105	4	19
50	2	155	18	18	26	42	120	8	19
65	2 1/2	175	20	20	30	48	140	8	19
80	3	200	22	22	34	51	160	8	23
90	3 1/2	210	24	24	36	54	170	8	23
100	4	225	24	24	36	58	185	8	23
125	5	270	26	26	40	64	225	8	25
150	6	305	28	28	42	73	260	12	25
200	8	350	30	30	46	77	305	12	25
250	10	430	34	34	52	87	380	12	27
300	12	480	36	36	56	94	430	16	27
350	14	540	40	40	62	110	480	16	33
400	16	605	46	46	70	123	540	16	33
450	18	675	48	48	78	134	605	20	33
500	20	730	50	50	84	136	660	20	33
550	22	795	52	52	90	143	720	20	39
600	24	845	54	56	96	149	770	24	39