DN	outside diameter D , in mm	diameter of bolt circle K , in mm	diameter of bolt hole L , in mm	number of bolts	bolts size	outside diameter of neck A , in mm	bore diameters B_1 , in mm	flange thickness C_1 , in mm	flange thickness C_2 , in mm	flange thickness C_3 , in mm	flange thickness C_4 , in mm	centre portion G_max , in mm	length H_1 , in mm	length H_2 , in mm	length H_3 , in mm	neck diameters N_1 , in mm	neck diameters N_2 , in mm	neck diameters N_3 , in mm	corner radius R_1 in mm
10	100	70	14	4	M12	17.2	18	20	20	20	20	-	28	45	6	32	40	40	4
15	105	75	14	4	M12	21.3	22	20	20	20	20	-	28	45	6	34	43	45	4
20	130	90	18	4	M16	26.9	27.5	22	22	22	22	-	30	48	8	42	52	50	4
25	140	100	18	4	M16	33.7	34.5	24	24	24	24	-	32	58	8	52	60	61	4
32	155	110	22	4	M20	42.4	43.5	24	24	26	24	-	32	60	8	62	68	68	6
40	170	125	22	4	M20	48.3	49.5	26	26	28	26	-	34	62	10	70	80	82	6
50	180	135	22	4	M20	60.3	61.5	26	26	26	26	-	36	62	10	82	90	90	6
65	205	160	22	8	M20	76.1	77.5	26	26	26	26	45	40	68	12	98	112	105	6
80	215	170	22	8	M20	88.9	90.5	30	28	28	28	60	44	72	12	112	125	122	8
100	250	200	26	8	M24	114.3	116	32	30	30	30	80	52	78	12	138	152	146	8
125	295	240	30	8	M27	139.7	141.5	34	34	34	34	105	56	88	12	168	185	177	8
150	345	280	33	8	M30	168.3	170.5	36	36	36	36	130	60	95	12	202	215	204	10
200	415	345	36	12	M33	219.1	221.5	48	42	42	42	180	-	110	16	256	-	264	10
250	470	400	36	12	M33	273	276.5	55	46	46	46	220	-	125	18	316	-	320	12
300	530	460	36	16	M33	323.9	327.5	65	52	52	52	270	-	140	18	372	-	378	12
350	600	525	39	16	M36	355.6	359.5	72	56	56	56	310	-	150	20	420	-	434	12
400	670	585	42	16	M39	406.4	411	80	60	60	60	360	-	160	20	475	-	490	12
500	800	705	48	20	M45	-	-	-	-	-	-	-	-	-	-	-	-	-	-
600	930	820	56	20	M52	-	-	-	-	-	-	-	-	-	-	-	-	-	-
700	1045	935	56	24	M52	-	-	-	-	-	-	-	-	-	-	-	-	-	-
800	1165	1050	62	24	M56	-	-	-	-	-	-	-	-	-	-	-	-	-	-
900	1285	1170	62	28	M56	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1000	1415	1290	70	28	M64	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1200	1665	1530	78	32	M72	-	-	-	-	-	-	-	-	-	-	-	-	-	-