DIN 2635 PN40 WELDING NECK FLANGE

DIN 2635 PN40 Welding Neck Flange | High-Quality DIN PN40 Weld Neck Flanges Manufacturer

Our DIN 2635 PN40 Welding Neck Flanges are precision-engineered to meet the strict requirements of DIN 2635 standards for high-pressure piping systems. Designed for durability and reliable performance, these flanges are ideal for industrial applications such as oil and gas, chemical processing, power generation, and petrochemical industries.

The DIN 2635 PN40 Welding Neck Flange is a German standard flange designed for pipeline systems operating at a nominal pressure of 40 bar (PN40). It is widely used in industries such as petrochemical, water treatment, shipbuilding, and mechanical engineering due to its reliable leak-proof connection and high strength under pressure.

DIN 2635 PN40 Welding Neck Flange:

Standard: DIN 2635 (Deutsches Institut für Normung)
Type: Welding Neck Flange (Welded at the neck to match pipe bore)
Pressure Rating: PN40
Facing Type: Raised Face (RF) or Flat Face (FF)
Flange Type Code (DIN): EN 1092-1 Typ 11
Welding Type: Butt-welded to pipe, ensuring a smooth flow transition
Applications: Suitable for high-pressure and high-temperature piping systems

DIN 2635 PN 40 Flange WNRF

DIN flange- the German Institute for Standardization, is a private organization providing standardization services in Germany.Now all the weld neck flange are refer to EN 1092-1 Type 11,below is the DIN weld neck flange vs EN 1092-1 type 11 Flange

DIN Weld neck Flange standard reference

Description	Old DIN standard	New EN standard	Type	Pressure
Welding neck flange	DIN 2631	EN 1092-1	11	PN6
Welding neck flange	DIN 2632	EN 1092-1	11	PN10
Welding neck flange	DIN 2633	EN 1092-1	11	PN16
Welding neck flange	DIN 2634	EN 1092-1	11	PN25
Welding neck flange	DIN 2635	EN 1092-1	11	PN40
Welding neck flange	DIN 2636	EN 1092-1	11	PN63
Welding neck flange	DIN 2637	EN 1092-1	11	PN100

DIN 2635 PN40 Welding Neck Flange Material Options:

DIN 2635 PN40 Welding Neck Flanges are available in a variety of materials depending on the application:

Carbon Steel: S235JR, C22.8, P245GH, P250GH,P265GH
Stainless Steel: AISI 304 / 304L /1.4307, AISI 316 / 316L/1.4404 , 321, 347
Alloy Steel: 16Mo3, 13CrMo4-5
Duplex / Super Duplex: 1.4462, 1.4410
Other Grades: Available upon request for corrosive or high-temperature service

Dimensions and weight of DIN 2635 PN40 Weld Neck Flanges

Dimensions and weight of DIN 2633 PN16 Weld Neck Flanges

Dimensions in mm

Tubo / Pipe / Rohr – AnschluBmabe			Brida / Flange / Flansch				Cuello / Neck / Ansatz				Resalto / Raised face / Dichtleiste		Tornillos / Screws / Schrauben			Peso de una brida / Weight of a flange / Gewicht eines Flansches (7,85 Kg/dm3)
Diámetro Nominal Rated Diameter Nennweite	d1		D	b	k	h1	d3	s	r	h2	d4	f	Numero / Number / Anzahl	Rosca / Thread / Gewinde	d2
	ISO Serie 1 Reihe 1	DIN Serie 2 Reihe 2														Kg
10	—	14	90	14	60	35	25	1,8	4	6	40	2	4	M 12	14	0,58
	17,2	–					28
15	–	20	95	14	65	35	30	2	4	6	45	2	4	M 12	14	0,648
	21,3	–					32
20	–	25	105	16	75	38	38	2,3	4	6	58	2	4	M 12	14	0,952
	26,9	–					40
25	–	30	115	16	85	38	42	2,6	4	6	68	2	4	M 12	14	1,14
	33,7	–					45
32	–	38	140	16	100	40	52	2,6	6	6	78	2	4	M 16	18	1,69
	42,4	–					56
40	–	44,5	150	16	110	42	60	2,6	6	7	88	3	4	M 16	18	1,86
	48,3	–					64
50	–	57	165	18	125	45	72	2,9	6	8	102	3	4	M 16	18	2,53
	60,3	–					75
65	76,1	–	185	18	145	45	90	2,9	6	10	122	3	4	M 16	18	3,06
80	88,9	–	200	20	160	50	105	3,2	8	10	138	3	8	M 16	18	3,7
100	–	108	220	20	180	52	125	3,6	8	12	158	3	8	M 16	18	4,62
	114,3	–					131
125	–	133	250	22	210	55	150	4	8	12	188	3	8	M 16	18	6,3
	139,7	–					156
150	–	159	285	22	240	55	175	4,5	10	12	212	3	8	M20	22	7,75
	168,3	–					184
( 175 )	193,7	–	315	24	270	60	210	5,4	10	12	242	3	8	M20	22	9,85
200	219,1	–	340	24	295	62	235	5,9	10	16	268	3	12	M20	22	11
250	–	267	405	26	355	70	285	6,3	12	16	320	3	12	M24	26	15.6
	273	–					292
300	323,9	–	460	28	410	78	344	7,1	12	16	378	4	12	M24	26	22
350	355,6	–	520	30	470	82	390	8	12	16	438	4	16	M24	26	31,2
	–	368														28,8
400	406,4	–	580	32	525	85	445	8	12	16	490	4	16	M27	30	39,3
	–	419														36,3
( 450 )	457	–	640	34	585	85	490	8	12	16	550	4	20	M27	30	44,3
500	508	–	715	34	650	90	548	8	12	16	610	4	20	M30	33	61
600	610	–	840	36	770	95	652	8,8	12	18	725	5	20	M33	36	75,4
700	711	–	910	36	840	100	755	8,8	12	18	795	5	24	M33	36	77
800	813	–	1025	38	950	105	855	10	12	20	900	5	24	M36	39	101
900	914	–	1125	40	1050	110	955	10	12	20	1000	5	28	M36	39	122
1000	1016	–	1255	42	1170	120	1058	10	16	22	1115	5	28	M 39	42	162
1200	1220	–	1485	48	1390	130	1262	13	16	30	1330	5	32	M45	48	243
1400	1420	–	1685	52	1590	145	1465	14	16	30	1530	5	36	M45	48	323
1600	1620	–	1930	58	1820	160	1668	16	16	35	1750	5	40	M52	56	479
1800	1820	–	2130	62	2020	170	1870	18	16	35	1950	5	44	M52	56	599
2000	2020	–	2345	66	2230	180	2072	20	16	40	2150	5	48	M56	62	719

*All dimensions are in mm unless otherwise specified.

Compliance & Certification of DIN 2635 PN40 WN flanges

DIN EN 1092-1 Standard Compliance
PED 2014/68/EU (if required)
EN 10204 3.1 or 3.2 Material Test Certificates
Third-party inspection available (e.g., TÜV, BV, SGS)

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Download DIN 2635 PN40 Standard pdf

Download DIN 2635 PN40 Flange Dimension

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