DIN detail

DIN 2631 PN6 Weld Neck Flanges

DIN 2631 PN6 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 2631 PN6 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 2631 welding neck flanges; nominal pressure 6

Vorschweißflansche DIN 2631 Nenndruck 6
Brides 脿 souder 脿 collerette DIN 2631: pression nominale 6
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	80	12	55	30	28	2	4	6	40	2	4	M 10	11	0,392
21,3	-	30
20	-	25	90	14	65	32	35	2,3	4	6	50	2	4	M 10	11	0,592
26,9	-	38
25	-	30	100	14	75	35	40	2,6	4	6	60	2	4	M 10	11	0,747
33,7	-	42
32	-	38	120	14	90	35	50	2,6	6	6	70	2	4	M 12	14	1,05
42,4	-	55
40	-	44,5	130	14	100	38	58	2,6	6	7	80	3	4	M 12	14	1,18
48,3	-	62
50	-	57	140	14	110	38	70	2,9	6	8	90	3	4	M 12	14	1,34
60,3	-	74
65	76,1	-	160	14	130	38	88	2,9	6	9	110	3	4	M 12	14	1,67
80	88,9	-	190	16	150	42	102	3,2	8	10	128	3	4	M 16	18	2,71
100	-	108	210	16	170	45	122	3,6	8	10	148	3	4	M 16	18	3,24
114,3	130
125	-	133	240	18	200	48	148	4	8	10	178	3	8	M 16	18	4,49
139,7	-	155
150	-	159	265	18	225	48	172	4,5	10	12	202	3	8	M 16	18	5,15
168,3	-	184
200	219,1	-	320	20	280	55	236	5,9	10	15	258	3	8	M 16	18	7,78
250	-	267	375	22	335	60	282	6,3	12	15	312	3	12	M 16	18	10,8
273	-	290
300	323,9	-	440	22	395	62	342	7,1	15	15	365	4	12	M 20	22	14
350	355,6	-	490	22	445	62	385	7,1	12	15	415	4	12	M 20	22	18,5
-	368	16,7
400	406,4	-	540	22	495	65	438	7,1	12	15	465	4	16	M 20	22	21,2
-	419	19
500	508	-	645	24	600	68	538	7,1	12	15	570	4	20	M 20	22	28,6
600	610	-	755	24	705	70	640	7,1	12	16	670	5	20	M 24	26	31,5
700	711	-	860	24	810	70	740	7,1	12	16	775	5	24	M 24	26	37,4
800	813	-	975	24	920	70	842	7,1	12	16	880	5	24	M 27	30	46,1
900	914	-	1075	26	1020	70	942	7,1	12	16	980	5	24	M 27	30	55,6
1000	1016	-	1175	26	1120	70	1045	7,1	16	16	1080	5	28	M 27	30	61,9

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 2631 PN6 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

PN6

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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