DIN detail

DIN 2634 PN25 Weld Neck Flanges

DIN 2634 PN25 weld neck flange dimensions and order notes for replacement and project supply.

DIN DN size range PN-rated supply Traceable documents

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Reference scope

Common order references

Standard / Type	Product	Typical scope
DIN 2634 PN25 weld neck flange	Product type	Dimensions and specification tables below
Documents	Material certificate	EN 10204 3.1 by request
Production release	Approved drawing / standard edition	Released against the controlled order file

Product data

Dimensions and specification tables

Germany standard flange DIN 2634 welding neck flanges; nominal pressure 25

Vorschweißflansche DIN 2634 Nenndruck 25
Brides 脿 souder 脿 collerette DIN 2634: pression nominale 25
Pipe	Flange	Neck	Raised face	Screws	Weight
(7,85 Kg/dm3)
Rated	d1	D	b	k	h1	d3	s	r	h2	d4	f	Holes	Thread	d2	Kg
Diameter	ISO Series	DIN Series
15	-	20	95	16	65	38	30	2	4	6	45	2	4	M 12	14	0,746
21,3	-	32
20	-	25	105	18	75	40	38	2,3	4	6	58	2	4	M 12	14	1,06
26,9	-	40
25	-	30	115	18	85	40	42	2,6	4	6	68	2	4	M 12	14	1,29
33,7	-	45
32	-	38	140	18	100	42	52	2,6	6	6	78	2	4	M 16	18	1,88
42,4	-	56
40	-	44,5	150	18	110	45	60	2,6	6	7	88	3	4	M 16	18	2,33
48,3	-	64
50	-	57	165	20	125	48	72	2,9	6	8	102	3	4	M 16	18	2,82
60,3	-	75
65	76,1	-	185	22	145	52	90	2,9	6	10	122	3	8	M 16	18	3,74
80	88,9	-	200	24	160	58	105	3,2	8	12	138	3	8	M 16	18	4,75
100	-	108	235	24	190	65	128	3,6	8	12	162	3	8	M 20	22	6,52
114,3	-	134
125	-	133	270	26	220	68	155	4	8	12	188	3	8	M 24	26	9,07
139,7	-	162
150	-	159	300	28	250	75	182	4,5	10	12	218	3	8	M 24	26	11,8
168,3	-	192
(175)	193,7	-	350	28	280	75	218	5,6	10	15	248	3	12	M 24	26	13,4
200	219,1	-	360	30	310	80	244	6,3	10	16	278	3	12	M 24	26	17
250	-	267	425	32	370	88	292	7,1	12	18	335	3	12	M 27	30	24,4
273	-	298
300	323,9	-	485	34	430	92	352	8	12	18	395	4	16	M 27	30	31,2
350	355,6	-	555	38	490	100	398	8	12	20	450	4	16	M 30	33	47,2
-	368	44,2
400	406,4	-	620	40	550	110	452	8,8	12	20	505	4	16	M 33	36	61,7
-	419	57,9
(450)	457	-	670	42	600	110	500	8,8	12	20	550	4	20	M 33	36	71,9
500	508	-	730	44	660	125	558	10	12	20	615	4	20	M 33	36	89,6
600	610	-	845	46	770	125	660	11	12	20	720	5	20	M 36	39	104
700	711	-	960	46	875	125	760	13	20	24	820	5	24	M 39	42	136
800	813	-	1085	50	990	135	865	14	22	24	930	5	24	M 45	48	186
900	914	-	1185	54	1090	145	968	16	24	28	1030	5	28	M 45	48	236
1000	1016	-	1320	58	1210	155	1070	18	24	28	1140	5	28	M 52	56	307

Use these tables for RFQ preparation. Final production should be confirmed against the required standard edition, drawing, material grade and certificate requirement.

Supply notes

Supply and order notes

Product scope

DIN 2634 PN25 weld neck flange can be quoted in carbon steel, stainless steel or project material grades when the order specification, dimensions and certificate requirements are confirmed.

How we prepare the production item

Our quotation records the standard number, DN size, pressure rating, material grade, facing, quantity and document scope, with project drawings linked to the same production item.

Technical purchasing support

How Hyupshin turns the specification into a controlled flange order.

Dimension control

DIN production dimensions

Our technical team compares the requested standard edition and project drawing, then releases the applicable dimensions to production.

Pressure and facing

PN25

We record the PN rating, sealing-face form, surface finish and tolerance notes on each PN-rated quotation line.

Product geometry

Weld Neck manufacturing details

Flange type, sealing face, drilling, thickness and machining details are checked together so production and inspection use the same specification.

Documents

Certificate and inspection records

Our order file carries the agreed EN 10204 3.1, PED, AD 2000, UKCA, PMI, NDT and third-party inspection scope through to shipment.

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Request a quotation for this flange

Send the standard, flange type, DN, PN, sealing face, material grade, quantity, certificate requirement and any project drawing.

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