Germany standard flange DIN 2637 welding neck flanges

Germany standard flange DIN 2637 welding neck flanges; nominal pressure 100
Pipe			Flange				Neck				Raised Face		Drilling				Approx. Weight (7.85 kg/dm3) kg
Nominal Size	d1		D	b	k	h1	d3	s	r	h2	d4	f	Number of Holes	Bolt Diameter		d2
	ISO Series	DIN Series
10		14	100	20	70	45	28	1.8	4	6	40	2	4	M12	(1/2″)	14	1.09
	17.2						32
15		20	105	20	75	45	32	2	4	6	45	2	4	M12	(1/2″)	14	1.19
	21.3						34
25		30	140	24	100	58	48	2.6	4	8	65	2	4	M16	(5/8″)	18	2.66
	33.7						52
32		38	155	24	110	60	58	2.6	6	8	75	2	4	M20	(3/4″)	23	3.2
	42.4						62
40		44.5	170	26	125	62	65	2.9	6	10	85	3	4	M20	(3/4″)	23	4.09
	48.3						70
50		57	195	28	145	68	86	3.2	6	10	95	3	4	M24	(7/8″)	27	5.98
	60.3						90
65	76.1	76.1	220	30	170	76	108	3.6	6	12	120	3	8	M24	(7/8″)	27	7.91
80	88.9	88.9	230	32	180	78	120	4	8	12	130	3	8	M24	(7/8″)	27	8.95
100		108	265	36	210	90	145	5	8	12	160	3	8	M27	(1″)	30	13.7
	114.3						150
125		133	315	40	250	105	180	6.3	8	12	185	3	8	M30	(1 1/8″)	33	22.7
	139.7
150		159	355	44	290	115	210	7.1	10	12	215	3	12	M30	(1 1/8″)	33	30.2
	168.3	168.3
-175		191	385	48	320	127	245	8.8	10	16	245	3	12	M30	(1 1/8″)	33	38.9
	193.7
200		216	430	52	360	130	278	10	10	16	270	3	12	M33	(1 1/4″)	36	52.8
	219.1
250		267	505	60	430	157	340	12.5	12	18	325	3	12	M36	(1 3/8″)	39	81.4
	273
300		318	585	68	500	170	400	14.2	12	18	375	4	16	M39	(1 1/2″)	42	122
	323.9
350		368	655	74	560	189	460	16	12	20	435	4	16	M45	(1 3/4″)	48	165

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