DIN 2502 / DIN 2503

DIN 2502, pn 16, German standard flanges, Mumbai

DIN 2502 PN 16 (in mm)
Nominal Pipe Size	Diameter of	Flange Dia	Flange I.D	Thk of Flanges	Dia of Bolt Cirlce	No. of	Dia of Bolt Holes
DN	Pipe	D	D5	B	K	holes	D2	KG
10	17.20	90	17.70	14	60	4	14	0.60
15	21.30	95	22.00	14	65	4	14	0.67
20	26.90	105	27.60	16	75	4	14	0.94
25	33.70	115	34.40	16	85	4	14	1.11
32	42.40	140	43.10	16	100	4	18	1.62
40	48.30	150	49.00	16	110	4	18	1.85
50	60.30	165	61.10	18	125	4	18	2.46
65	76.10	185	77.10	18	145	4	18	2.99
80	88.90	200	90.30	20	160	8	18	3.61
100	114.30	220	115.90	20	180	8	18	3.99
125	139.70	250	141.60	22	210	8	18	5.41
150	168.30	285	170.50	22	240	8	22	6.55
175	193.70	315	196.10	24	270	8	22	8.42
200	219.10	340	221.80	24	295	12	22	8.97
250	273.00	405	276.20	26	355	12	26	12.76
300	323.90	460	327.60	28	410	12	26	16.60
350	355.60	520	359.70	30	470	16	26	24.08
400	406.40	580	411.00	32	525	16	30	30.20
450	457.00	640	462.30	38	585	20	30	41.67
500	508.00	715	513.60	38	650	20	33	52.87
600	610.00	840	616.50	42	770	20	36	77.58
700	711.00	910	716.00	44	840	24	36	77.13
800	813.00	1025	818.00	50	950	24	39	106.35
900	914.00	1125	920.00	54	1050	28	39	125.39
1000	1016.00	1255	1022.00	60	1170	28	42	177.99

DIN 2503 PN25 (in mm)									DIN 2503 PN40 (in mm)
Nominal Pipe Size	Diameter of	Flange I.D	Flange Dia	Thk of Flange	Dia of Bolt Circle	No. of	Dia of Bolt Holes		Nominal Pipe Size	Diameter of	Flange I.D	Flange Dia	Thk of Flange	Dia of Bolt Cirlce	No. of	Dia of Bolt Holes
DN	Pipe	D5	D	B	K	holes	D2	KG	DN	Pipe	D5	D	B	K	holes	D2	KG
10	17.20	17.70	90	16	60	4	14	0.69	10	17.20	17.70	90	16	60	4	14	0.69
15	21.30	22.00	95	16	65	4	14	0.77	15	21.30	22.00	95	16	65	4	14	0.77
20	26.90	27.60	105	18	75	4	14	1.05	20	26.90	27.60	105	18	75	4	14	1.05
25	33.70	34.40	115	18	85	4	14	1.25	25	33.70	34.40	115	18	85	4	14	1.25
32	42.40	43.10	140	18	100	4	18	1.83	32	42.40	43.10	140	18	100	4	18	1.83
40	48.30	49.00	150	18	110	4	18	2.09	40	48.30	49.00	150	18	110	4	18	2.09
50	60.30	61.10	165	20	125	4	18	2.74	50	60.30	61.10	165	20	125	4	18	2.74
65	76.10	77.10	185	22	145	8	18	3.48	65	76.10	77.10	185	22	145	8	18	3.48
80	88.90	90.30	200	24	160	8	18	4.33	80	88.90	90.30	200	24	160	8	18	4.33
100	114.30	115.90	235	24	190	8	22	5.61	100	114.30	115.90	235	24	190	8	22	5.61
125	139.70	141.60	270	26	220	8	26	7.60	125	139.70	141.60	270	26	220	8	26	7.60
150	168.30	170.50	300	28	250	8	26	9.58	150	168.30	170.50	300	28	250	8	26	9.58
175	193.70	196.10	330	28	280	12	26	10.76	175	193.70	196.10	350	32	295	12	30	14.45
200	219.10	221.80	360	30	310	12	26	13.37	200	219.10	221.80	375	34	320	12	30	16.90
250	273.00	276.20	425	32	370	12	30	18.45	250	273.00	276.20	450	38	385	12	33	26.51
300	323.90	327.60	485	34	430	16	30	23.79	300	323.90	327.60	515	42	450	16	33	36.38
350	355.60	359.70	555	38	490	16	33	37.77	350	355.60	359.70	580	46	510	16	36	52.83
400	406.40	411.00	620	40	550	16	36	45.41	400	406.40	411.00	660	50	585	16	39	74.71
500	508.00	513.60	730	44	660	20	36	65.97	500	508.00	513.60	755	52	670	20	42	86.87
600	610.00	616.50	845	50	770	20	39	93.57	600	610.00	616.50	890	54	795	20	48	121.84
700	711.00	716.00	960	52	875	24	42	117.53	700	711.00	716.00	995	58	900	24	48	150.93
800	813.00	818.00	1085	56	990	24	48	156.34	800	813.00	818.00	1140	64	1030	24	56	219.08
900	914.00	920.00	1185	62	1090	28	48	188.57	900	914.00	920.00	1250	70	1140	28	56	271.16
1000	1016.00	1022.00	1320	68	1210	28	56	255.79	1000	1016.00	1022.00	1360	78	1250	28	56	344.95

Deutsches Institut für Normung, which in English means - German Institute for Standardization

Various DIN standards such as DIN 2502 / DIN 2503, DIN 2527 and many others are published as a result of the work done by the institute. DIN is now the technical standardization’s symbol in Germany.

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