JIS Standard Flange

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Mechanical parameters
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Parameters and character

标准号 Standard No.	通径范围 Diameter Range	压力等级 Pressure Rating	常用材料 Conventional Materials
JIS B2220 PL	DN10~DN400	5K	JIS G3214 SUS F304 SUS F304L SUS F316 SUS F316L SUS F310 SUS F321
JIS B2220 SO	DN450~DN1000	5K
JIS B2220 PL	DN10~DN225	10K
JID B2220 SO	DN250~DN1000	10K
JIS B2220 SO	DN10~DN1200	16K 20K 30K
JIS B2220 WN	DN15~DN400	30K
JPI 7S-15	1/2~24"	CLASS 150 300 600 900 1500 2500

KS B1503 JIS B2220 5K
Unit:mm

Nominal Bore of Flange	Outside Dia. of Steel pipe	Inside Dia. of Flange do	Outside Dia. of Flange D	Sectional Dimensions of Flange							Bolt Hole			Nominal Bolt Size	Weld Length (Reference)		Approx Weight (Kg)
				t	T	Dia. of Hub		Radius r	Raised Face f	Dia. of Raised Face g	Dia. of Bolt Circle c	Number of Bolt Holes	Hole Dia. h		Weld Length (Reference)
				t	T	a	b	Radius r	Raised Face f	Dia. of Raised Face g	Dia. of Bolt Circle c	Number of Bolt Holes	Hole Dia. h		W1	W2
10	17.3	17.8	75	9					1	39	55	4	12	M10	5	2.5	0.27
15	21.7	22.2	80	9					1	44	60	4	12	M10	5	3	0.3
20	27.2	27.7	85	10					1	49	65	4	12	M10	5	3	0.37
25	34	34.5	95	10					1	59	75	4	12	M10	5	3	0.45
32	42.7	43.2	115	12					2	70	90	4	15	M12	6	3	0.78
40	48.6	49.1	120	12					2	75	95	4	15	M12	6	3	0.83
50	60.5	61.1	130	14					2	85	105	4	15	M12	6	3	1.07
65	76.3	77.1	155	14					2	110	130	4	15	M12	6	4	1.49
80	89.1	90	180	14					2	121	145	4	19	M16	6	4	1.99
(90)	101.6	102.6	190	14					2	131	155	4	19	M16	6	4	2.09
100	114.3	115.4	200	16					2	141	165	8	19	M16	7	4	2.39
125	139.8	141.2	235	16					2	176	200	8	19	M16	7	4	3.23
150	165.2	166.6	265	18					2	206	230	8	19	M16	7	5	4.41
(175)	190.7	192.1	300	18					2	232	260	8	23	M20	7.5	5	5.51
200	216.3	218	320	20					2	252	280	8	23	M20	8.5	6	6.33
(225)	241.8	243.7	345	20					2	277	305	12	23	M20	9	6	6.64
250	267.4	269.5	385	22					2	317	345	12	23	M20	10	6	9.45
300	318.5	321	430	22					3	360	390	12	23	M20	10	6	10.3
350	355.6	358.1	480	24					3	403	435	12	25	M22	12	7	14
400	406.4	409	540	24					3	463	495	16	25	M22	12	7	16.9
450	457.2	460	605	24	40	495	500	5	3	523	555	16	25	M22	12	7	24.8
500	508	511	655	24	40	546	552	5	3	573	605	20	25	M22	12	7	26.9
(550)	558.8	562	720	26	42	597	603	5	3	630	665	20	27	M24	12	7	34.1
600	609.6	613	770	26	44	648	654	5	3	680	715	20	27	M24	12	7	37.5
(650)	660.4	664	825	26	48	702	708	5	3	735	770	24	27	M24	12	7	42.8
700	711.2	715	875	26	48	751	758	5	3	785	820	24	27	M24	12	7	45.4
(750)	762	766	945	28	52	802	810	5	3	840	880	24	33	M30	12	7	57.4
800	812.8	817	995	28	52	854	862	5	3	890	930	24	33	M30	13	8	60.8
(850)	863.6	868	1045	28	54	904	912	5	3	940	980	24	33	M30	13	8	63.5
900	914.4	919	1095	30	56	956	964	5	3	990	1030	24	33	M30	13	8	75.3
1000	1016	1021	1195	32	60	105	1066	5	3	1090	1130	28	33	M30	14	9	88.5
*(1100)	1117.6	1123	1305	32					3	1200	1240	28	33	M30
*1200	1219.2	1225	1420	34					3	1305	1350	32	33	M30
*1350	1371.6		1575	34					3	1460	1505	32	33	M30
*1500	1524		1730	36					3	161	1660	36	33	M30

1.Flanges of parenthesized nominal diameter had better not be used.
2.The facing of flanges shall conform to KS B1519(JIS B2202-1984).
3.Nominal diameter over 1000 is manufacturer's standard(*).

KS B1503 JIS B2220 10K
Unit:mm

Nominal Bore of Flange	Outside Dia. of Steel pipe	Inside Dia. of Flange do	Outside Dia. of Flange D	Sectional Dimensions of Flange							Bolt Hole			Nominal Bolt Size	Weld Length (Reference)		Approx Weight (Kg)
				t	T	Dia. of Hub		Radius r	Raised Face f	Dia. of Raised Face g	Dia. of Bolt Circle c	Number of Bolt Holes	Hole Dia. h		Weld Length (Reference)
				t	T	a	b	Radius r	Raised Face f	Dia. of Raised Face g	Dia. of Bolt Circle c	Number of Bolt Holes	Hole Dia. h		W1	W2
10	17.3	17.8	90	12					1	46	65	4	15	M12	5	2.5	0.52
15	21.7	22.2	95	12					1	51	70	4	15	M12	5	3	0.57
20	27.2	27.7	100	14					1	56	75	4	15	M12	5	3	0.73
25	34	34.5	125	14					1	67	90	4	19	M16	5	3	1.13
32	42.7	43.2	135	16					2	76	100	4	19	M16	6	3	1.48
40	48.6	49.1	140	16					2	81	105	4	19	M16	6	3	1.56
50	60.5	61.1	155	16					2	96	120	4	19	M16	6	3	1.88
65	76.3	77.1	175	18					2	116	140	4	19	M16	6.5	4	2.6
80	89.1	90	185	18					2	126	150	8	19	M16	6.5	4	2.61
(90)	101.6	102.6	195	18					2	136	160	8	19	M16	6.5	4	2.76
100	114.3	115.4	210	18					2	151	175	8	19	M16	7	4	3.14
125	139.8	141.2	250	20					2	182	210	8	23	M20	7.5	4	4.77
150	165.2	166.6	280	22					2	212	240	8	23	M20	8	5	6.34
(175)	190.7	192.1	305	22					2	237	265	12	23	M20	9	5	6.82
200	216.3	218	330	22					2	262	290	12	23	M20	9	6	7.53
(225)	241.8	243.7	350	22					2	282	310	12	23	M20	9	6	7.74
250	267.4	269.5	400	24	36	288	292	6	2	324	355	12	25	M22	10	6	12.7
300	318.5	321	445	24	38	340	346	6	3	368	400	16	25	M22	10	6	13.8
350	355.6	358.1	490	26	42	380	386	6	3	413	445	16	25	M22	12	7	18.2
400	406.4	409	560	28	44	436	442	6	3	475	510	16	27	M24	12	7	25.2
450	457.2	460	620	30	48	496	502	6	3	530	565	20	27	M24	14	8	33
500	508	511	675	30	48	548	554	6	3	585	620	20	27	M24	14	8	37.6
(550)	558.8	562	745	32	52	604	610	6	3	640	680	20	33	M30	15	9	49.7
600	609.6	613	795	32	52	656	662	6	3	690	730	24	33	M30	16	10	52.6
(650)	660.4	664	845	34	56	706	712	6	3	740	780	24	33	M30	16	10	60.6
700	711.2	715	905	34	58	762	770	6	3	800	840	24	33	M30	17	10	70.6
(750)	762	766	970	36	62	816	824	6	3	855	900	24	33	M30	18	11	85.8
800	812.8	817	1020	36	64	868	876	6	3	905	950	28	33	M30	19	12	91.2
(850)	863.6	868	1070	36	66	920	928	6	3	955	1000	28	33	M30	19	12	98.6
900	914.4	919	1120	38	70	971	979	6	3	1005	1050	28	33	M30	22	14	109
1000	1016	1021	1235	40	74	1073	1081	6	3	1110	1160	28	39	M36	22	14	133
*(1100)	1117.6	1123	1345	42	76				3	1220	1270	28	39	M36
*1200	1219.2	1225	1465	44	78				3	1325	1380	32	39	M36
*1350	1371.6		1630	48	82				3	1480	1540	36	45	M42
*1500	1524		1795	50	90				3	1635	1700	40	45	M42

1.Flanges of parenthesized nominal diameter had better not be used.
2.The facing of flanges shall conform to KS B1519(JIS B2202-1984).
3.Nominal diameter over 1000 is manufacturer's standard(*).

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JIS Standard Flange

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JIS Standard Flange

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