DIN Standard Flange

DIN PN40 Flange, DIN PN16 Flange, DIN 2573-PN6 Flange, DIN 2576-PN10 Flange

DIN Flanges are standardized pipe flanges developed by the German Institute for Standardization (Deutsches Institut für Normung, or DIN). These flanges are widely used in piping systems across Europe and other regions for connecting pipes, valves, and other equipment. DIN flanges come in various pressure ratings, such as PN6, PN10, PN16, PN25, PN40, and PN100, making them suitable for a wide range of applications, from low-pressure systems to high-pressure industrial pipelines.

DIN Standard Flanges are available in different types, including weld neck flanges (DIN 2633, DIN 2634), blind flanges (DIN 2527), slip-on flanges (DIN 2502), and plate flanges (DIN 2573). DIN flanges are manufactured in materials like carbon steel, stainless steel, and alloy steel, ensuring durability and corrosion resistance. Commonly used in industries such as oil and gas, petrochemicals, water treatment, and power generation, DIN flanges offer reliable performance, precision, and compatibility with European piping standards.

Ample Alloys is a renowned manufacturer, supplier, and exporter of high-quality piping components, including DIN Standard flanges. With a strong focus on precision engineering and superior material quality. We offers a wide range of products in materials like stainless steel, carbon steel, alloy steel, duplex steel, nickel alloys, and other exotic metals, ensuring durability, corrosion resistance, and high performance under extreme conditions. Known for its commitment to customer satisfaction, We provides products that adhere to international standards like DIN. Backed by extensive industry experience, advanced infrastructure, and a skilled workforce, Ample Alloys has established itself as a trusted partner for reliable and cost-effective piping solutions worldwide.

DIN 2501-PN16, DIN 2502-PN25, DIN 2503-PN40, DIN 2631-PN6, DIN 2632-PN10 Pipe Flange, DIN 2527 blind flange, DIN 2573 plate flange, DIN 2634 weld neck flange, DIN 2502 slip-on flange, DIN PN40 forged flange

DIN Pipe Flange Specifications

Size Range

15mm ( 1/2" NPS ) up to 1200 mm ( 48" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12

Flange Face Type

Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ)

Stainless Steel

ASTM A182 F 304, 304L, 304H, 316, 316L, 316H, 317, 317L, 321, 321H, 310, 310S, 347, 904L, etc.

Standards / Dimension

DIN Standard Flange (DIN 2573, 2576, 2501, 2502, 2503, 2631, 2632, 2633, 2634, 2635)

Carbon Steel

ASTM A105/A105N (SA105N), LTCS A350 LF2, A694

Alloy Steel

ASTM A182 / SA182 - F1 / F5 / F9 / F11 / F12 / F22 / F91

Pressure Class

Table D, Table E, Table F, Table H, Table J.

Duplex & Super Duplex

ASTM A182 / ASME SA182 - S31803, S32205, 2205, S32750, S32760, S32950, 2507.

MTC

EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103

DIN Flange - Dimensions & Weight

DIN Flange PN6, PN10, PN16, PN25, PN40 Dimensions

DIN Flange PN6, PN10, PN16, PN25, PN40

Flange Nominal Diameter	Pressure Rating (PN)
**Nominal BSP Pipe Size	PN6	PN10	PN16	PN25	PN40
DN 10	75	90	90	90	90	O.D.
3/8″	50	60	60	60	60	PCD (bolt circle)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diam. of holes
DN 15	80	95	95	95	95	O.D.
1/2″	55	65	65	65	65	PCD (bolt circle)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diam. of holes
DN 20	90	105	105	105	105	O.D.
3/4″	65	75	75	75	75	PCD (bolt circle)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diam. of holes
DN 25	100	115	115	115	115	O.D.
1″	75	85	85	85	85	PCD (bolt circle)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diam. of holes
DN 32	120	140	140	140	140	O.D.
1 1/4″	90	100	100	100	100	PCD (bolt circle)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diam. of holes
DN 40	130	150	150	150	150	O.D.
1 1/2″	100	110	110	110	110	PCD (bolt circle)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diam. of holes
DN 50	140	165	165	165	165	O.D.
2″	110	125	125	125	125	PCD (bolt circle)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diam. of holes
DN 65	160	185	185	185	185	O.D.
2 1/2″	130	145	145	145	145	PCD (bolt circle)
	4 x 14	4 x 18	4 x 18	8 x 18	8 x 18	# of holes x diam. of holes
DN 80	190	200	200	200	200	O.D.
3″	150	160	160	160	160	PCD (bolt circle)
	4 x 18	8 x 18	8 x 18	8 x 18	8 x 18	# of holes x diam. of holes
DN 100	210	220	220	235	235	O.D.
4″	170	180	180	190	190	PCD (bolt circle)
	4 x 18	8 x 18	8 x 18	8 x 22	8 x 22	# of holes x diam. of holes
DN 125	240	250	250	270	270	O.D.
5″	200	210	210	220	220	PCD (bolt circle)
	8 x 18	8 x 18	8 x 18	8 x 26	8 x 26	# of holes x diam. of holes
DN 150	265	285	285	300	300	O.D.
6″	225	240	240	250	250	PCD (bolt circle)
	8 x 18	8 x 22	8 x 22	8 x 26	8 x 26	# of holes x diam. of holes
DN 175		315	315	330	350	O.D.
7″		270	270	280	295	PCD (bolt circle)
		8 x 22	8 x 22	12 x 26	12 x 30	# of holes x diam. of holes
DN 200	320	340	340	360	375	O.D.
8″	280	295	295	310	320	PCD (bolt circle)
	8 x 18	8 x 22	12 x 22	12 x 26	12 x 30	# of holes x diam. of holes
DN 250	375	395	405	425	450	O.D.
10″	335	350	355	370	385	PCD (bolt circle)
	12 x 18	12 x 22	12 x 26	12 x 30	12 x 33	# of holes x diam. of holes
DN 300	440	445	460	485	515	O.D.
12″	395	400	410	430	450	PCD (bolt circle)
	12 x 22	12 x 22	12 x 26	16 x 30	16 x 33	# of holes x diam. of holes
DN 350	490	505	520	555	580	O.D.
14″	445	460	470	490	510	PCD (bolt circle)
	12 x 22	16 x 22	16 x 26	16 x 33	16 x 36	# of holes x diam. of holes
DN 400	540	565	580	620	660	O.D.
16″	495	515	525	550	585	PCD (bolt circle)
	16 x 22	16 x 26	16 x 30	16 x 36	16 x 39	# of holes x diam. of holes
DN 500	645	670	715	730	755	O.D.
20″	600	620	650	660	670	PCD (bolt circle)
	20 x 22	20 x 26	20 x 33	20 x 36	20 x 42	# of holes x diam. of holes
DN 600	755	780	840	845		O.D.
24″	705	725	770	770		PCD (bolt circle)
	20 x 24	20 x 27	20 x 33	20 x 36		# of holes x diam. of holes

DIN 2573 PN6 Flange - Dimensions & Weight

Germany standard flange DIN 2573 for soldering or welding Nominall Pressure 6
Flansche, glatt zum löten oder schweißen DIN 2573 Nenndruck 6
Brides plates a souder DIN 2573 pression nominale 6
Pipe			Flange					Screws			Weight (7,85 Kg/dm3)
Rated Diameter	d1		d5	D	b	c	k	Holes	Thread	d2	Kg
Rated Diameter	ISO Series 1	DIN Series 2	d5	D	b	c	k	Holes	Thread	d2	Kg
15	–	20	21	80	12	5	55	4	M 10	11	0,41
15	21,3	–	22	80	12	5	55	4	M 10	11	0,41
20	–	25	26	90	14	5	65	4	M 10	11	0,60
20	26,9	–	27,6	90	14	5	65	4	M 10	11	0,60
25	–	30	31	100	14	5	75	4	M 10	11	0,74
25	33,7	–	34,4	100	14	5	75	4	M 10	11	0,74
32	–	38	39	120	16	5	90	4	M 12	14	1,19
32	42,4	–	43,1	120	16	5	90	4	M 12	14	1,19
40	–	44,5	45,5	130	16	5	100	4	M 12	14	1,39
40	48,3	–	49	130	16	5	100	4	M 12	14	1,39
50	–	57	58,1	140	16	6	110	4	M 12	14	1,53
50	60,3	–	61,1	140	16	6	110	4	M 12	14	1,53
65	76,1	–	77,1	160	16	6	130	4	M 12	14	1,89
80	88,9	–	90,3	190	18	7	150	4	M 16	18	2,98
100	–	108	109,6	210	18	7	170	4	M 16	18	3,46
100	114,3	–	115,9	210	18	7	170	4	M 16	18	3,46
125	–	133	134,8	240	20	7	200	8	M 16	18	4,60
125	139,7	–	141,6	240	20	7	200	8	M 16	18	4,60
150	–	159	161,1	265	20	7	225	8	M 16	18	5,22
150	168,3	–	170,5	265	20	7	225	8	M 16	18	5,22
200	219,1	–	221,8	320	22	7	280	8	M 16	18	7,15
250	–	267	270,2	375	24	7	335	12	M 16	18	9,61
250	273	–	276,2	375	24	7	335	12	M 16	18	9,61
300	323,9	–	327,6	440	24	7	395	12	M 20	22	12,60
350	355,6	–	359,7	490	26	7	445	12	M 20	22	15,60
350	–	368	372,2	490	26	7	445	12	M 20	22	15,60
400	406,4	–	411	540	28	7	495	16	M 20	22	18,40
400	–	419	423,7	540	28	7	495	16	M 20	22	18,40
(450)*	457	–	462,5	595	30	7	550	16	M 20	22	21,40
500	508	–	531,6	645	30	7	600	20	M 20	22	24,60

DIN 2631 PN6 WNRF Flange - Dimensions & Weight

Germany standard flange DIN 2631 welding neck flanges; nominal pressure 6
Vorschweißflansche DIN 2631 Nenndruck 6
Brides à souder à collerette DIN 2631: pression nominale 6
Pipe			Flange				Neck				Raised face		Screws			Weight
Pipe			Flange				Neck				Raised face		Screws			(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	D	b	k	h1	d3	s	r	h2	d4	f	Holes	Thread	d2	Kg
15	–	20	80	12	55	30	28	2	4	6	40	2	4	M 10	11	0,392
15	21,3	–	80	12	55	30	30	2	4	6	40	2	4	M 10	11	0,392
20	–	25	90	14	65	32	35	2,3	4	6	50	2	4	M 10	11	0,592
20	26,9	–	90	14	65	32	38	2,3	4	6	50	2	4	M 10	11	0,592
25	–	30	100	14	75	35	40	2,6	4	6	60	2	4	M 10	11	0,747
25	33,7	–	100	14	75	35	42	2,6	4	6	60	2	4	M 10	11	0,747
32	–	38	120	14	90	35	50	2,6	6	6	70	2	4	M 12	14	1,05
32	42,4	–	120	14	90	35	55	2,6	6	6	70	2	4	M 12	14	1,05
40	–	44,5	130	14	100	38	58	2,6	6	7	80	3	4	M 12	14	1,18
40	48,3	–	130	14	100	38	62	2,6	6	7	80	3	4	M 12	14	1,18
50	–	57	140	14	110	38	70	2,9	6	8	90	3	4	M 12	14	1,34
50	60,3	–	140	14	110	38	74	2,9	6	8	90	3	4	M 12	14	1,34
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
100	114,3		210	16	170	45	130	3,6	8	10	148	3	4	M 16	18	3,24
125	–	133	240	18	200	48	148	4	8	10	178	3	8	M 16	18	4,49
125	139,7	–	240	18	200	48	155	4	8	10	178	3	8	M 16	18	4,49
150	–	159	265	18	225	48	172	4,5	10	12	202	3	8	M 16	18	5,15
150	168,3	–	265	18	225	48	184	4,5	10	12	202	3	8	M 16	18	5,15
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
250	273	–	375	22	335	60	290	6,3	12	15	312	3	12	M 16	18	10,8
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
350	–	368	490	22	445	62	385	7,1	12	15	415	4	12	M 20	22	16,7
400	406,4	–	540	22	495	65	438	7,1	12	15	465	4	16	M 20	22	21,2
400	–	419	540	22	495	65	438	7,1	12	15	465	4	16	M 20	22	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

DIN 2565/DIN 2566 PN6, PN16 Threaded Flange - Dimensions & Weight

DIN 2565 PN 6 THREADED FLANGE
Rated Diameter		Flange					Neck	Raised face		Screws			Weight (7,85 Kg/dm3)
Rated Diameter	d1	Thread	D	b	k	h1	d3	d4	f	Holes	Thread	d2	Kg
15	21,3	R 1/2	80	12	55	20	30	40	2	4	M 10	11	0,373
20	26,9	R 3/4	90	14	65	24	40	50	2	4	M 10	11	0,59
25	33,7	R 1	100	14	75	24	50	60	2	4	M 10	11	0,743
32	42,4	R 1 1/4	120	14	90	26	60	70	2	4	M 12	14	1,05
40	48,3	R 1 1/2	130	14	100	26	70	80	3	4	M 12	14	1,2
50	60,3	R 2	140	14	110	28	80	90	3	4	M 12	14	1,37
65	76,1	R 2 1/2	160	14	130	32	100	110	3	4	M 12	14	1,92
80	88,9	R 3	190	16	150	34	110	128	3	4	M 16	18	2,82
100	114,3	R 4	210	16	170	38	130	148	3	4	M 16	18	3,19
125	139,7	R 5	240	18	200	40	160	178	3	8	M 16	18	4,47
150	165,1	R 6	265	18	225	44	185	202	3	8	M 16	18	5,3

DIN 2566 PN16 THREADED FLANGE
Rated Diameter		Flange					Neck	Raised face		Screws			Weight (7,85 Kg/dm3)
Rated Diameter	d1	Thread	D	b	k	h1	d3	d4	f	Holes	Thread	d2	Kg
15	21,3	R 1/2	95	14	65	20	35	45	2	4	M 12	14	0,613
20	26,9	R 3/4	105	16	75	24	45	58	2	4	M 12	14	0,91
25	33,7	R 1	115	16	85	24	52	68	2	4	M 12	14	1,1
32	42,4	R 1 1/4	140	16	100	26	60	78	2	4	M 16	18	1,6
40	48,3	R 1 1/2	150	16	110	26	70	88	3	4	M 16	18	1,78
50	60,3	R 2	165	18	125	28	85	102	3	4	M 16	18	2,43
65	76,1	R 2 1/2	185	18	145	32	105	122	3	4	M 16	18	3,18
80	88,9	R 3	200	20	160	34	118	138	3	8	M 16	18	4,12
100	114,3	R 4	220	20	180	38	140	158	3	8	M 16	18	4,47
125	139,7	R 5	250	22	210	40	168	188	3	8	M 16	18	6,13
150	165,1	R 6	285	22	240	44	195	212	3	8	M 20	22	7,92

DIN 2527 Blind Flange (PN6, PN10, PN16, PN25, PN40) - Dimensions & Weight

Germany standard flange DIN 2527 Blind flange Nominal Pressure 6 to 100
Blindflansche Nenndruck 6 bis 100
Brides plaines, pressions nominales 6 à 100
DIN 2527 PN6 BLIND FLANGE
Rated Diameter	Flange			Screws			Weight (7,85 Kg/dm3)
	D	b	k	Number	Thread	d2	Shape B
	D	b	k	Number	Thread	d2	Kg
15	80	12	55	4	M 10	11	0.44
20	90	14	65				0.66
25	100	14	75				0.83
32	120	14	90		M 12	14	1.18
40	130	14	100				1.39
50	140	14	110				1.63
65	160	14	130				2.15
80	190	16	150		M 16	18	3.44
100	210	16	170				4.22
125	240	18	200	8			6.11
150	265	18	225				7.51
200	320	20	280				12.31
250	375	22	335	12			18.54
300	440	22	395		M 20	22	25.46
350	490	22	445				31.77
400	540	22	495	16			38.49
500	645	24	600	20			60.10

DIN 2527 PN10 BLIND FLANGE
Rated Diameter	Flange			Screws			Weight (7,85 Kg/dm3)
	D	b	k	Number	Thread	d2	Shape B
	D	b	k	Number	Thread	d2	Kg
15	95	14	65	4	M 12	14	0,72
20	105	16	75				1,01
25	115	16	85				1,23
32	140	16	100		M 16	18	1,8
40	150	16	110				2,09
50	165	18	125				2,88
65	185	18	145				3,66
80	200	20	160				4,77
100	220	20	180	8			5,65
125	250	22	210				8,42
150	285	22	240		M 20	22	10,4
200	340	24	295				16,5
250	395	26	350	12			24
300	445	26	400	12			30,9
350	505	26	460	16			40,6
400	565	26	515	16	M 24	26	49,4
500	670	28	620	20	M 24	26	75

DIN 2527 PN16 BLIND FLANGE
Rated Diameter	Flange			Screws			Weight (7,85 Kg/dm3)
	D	b	k	Number	Thread	d2	Shape B
	D	b	k	Number	Thread	d2	Kg
15	95	14	65	4	M 12	14	0,72
20	105	16	75				1,01
25	115	16	85				1,23
32	140	16	100		M 16	18	1,8
40	150	16	110				2,09
50	165	18	125				2,88
65	185	18	145				3,66
80	200	20	160	8			4,77
100	220	20	180				5,65
125	250	22	210				8,42
150	285	22	240		M 20	22	10,4
200	340	24	295	12	M 20	22	16,1
250	405	26	355		M 24	26	24,9
300	460	28	410				35,1
350	520	30	470	16			47,8
400	580	32	525	16	M 27	30	63,5
500	715	36	650	20	M 30	33	102

DIN 2642 PN10 Loose Flange - Dimensions & Weight

Germany standard flange DIN 2642 lapped flange; nominal pressure 10
Lose Flansche Vorschweißbördel Glatte Bunde DIN 2642 Nenndruck 10
Brides tournantes: pression nominale 10
Pipe			Flange					Screws			Weight (7,85 Kg/dm3)
Rated Diameter	d1		D	d6	b	k	e	Holes	Thread	d2	Kg
Rated Diameter	ISO Series 1	DIN Series 2	D	d6	b	k	e	Holes	Thread	d2	Kg
15	–	20	95	22	14	65	3	4	M 12	14	0,689
15	21,3	–	95	24	14	65	3	4	M 12	14	0,689
20	–	25	105	28	14	75	3	4	M 12	14	0,806
20	26,9	–	105	30	14	75	3	4	M 12	14	0,806
25	–	30	115	33	16	85	4	4	M 12	14	1,11
25	33,7	–	115	36	16	85	4	4	M 12	14	1,11
32	–	38	140	42	16	100	4	4	M 16	18	1,64
32	42,4	–	140	46	16	100	4	4	M 16	18	1,64
40	–	44,5	150	50	16	110	4	4	M 16	18	1,86
40	48,3	–	150	54	16	110	4	4	M 16	18	1,86
50	–	57	165	62	16	125	5	4	M 16	18	2,2
50	60,3	–	165	65	16	125	5	4	M 16	18	2,2
65	76,1	–	185	81	16	145	5	4	M 16	18	2,62
80	88,9	–	200	94	18	160	5	8	M 16	18	3,32
100	–	108	220	113	18	180	5	8	M 16	18	3,67
100	114,3	–	220	119	18	180	5	8	M 16	18	3,67
125	–	133	250	138	18	210	5	8	M 16	18	4,54
125	139,7	–	250	145	18	210	5	8	M 16	18	4,54
150	–	159	285	164	18	240	5	8	M 20	22	5,6
150	168,3	–	285	173	18	240	5	8	M 20	22	5,6
200	219,1	–	340	225	20	295	5	8	M 20	22	7,46
250	–	267	395	273	22	350	5	12	M 20	22	10,3
250	273	–	395	279	22	350	5	12	M 20	22	10,3
300	323,9	–	445	329	26	400	5	12	M 20	22	14
350	355,6	–	505	362	28	460	6	16	M 20	22	18,5
350	–	368	505	374	28	460	6	16	M 20	22	18,5
400	406,4	–	565	413	32	515	6	16	M 24	26	25
400	–	419	565	426	32	515	6	16	M 24	26	25
(450)	457	–	615	467	38	565	6	20	M 24	26	30,6
500	508	–	670	517	38	620	6	20	M 24	26	37
600	610	–	780	618	44	725	7	20	M 27	30	56,3
700	711	–	895	721	50	840	7	24	M 27	30	80,4
800	813	–	1015	824	56	950	7	24	M 30	33	113,2

DIN Flange Standards

DIN Flange Standards refer to the specifications established by the Deutsches Institut für Normung (DIN), which define the dimensions, materials, pressure ratings, and applications of flanges. These standards ensure consistency, quality, and compatibility in piping systems across industries. Below are some commonly used DIN Flange Standards:

These standards specify different pressure classes, such as PN6, PN10, PN16, PN25, PN40, and PN100, to accommodate varying pressure and temperature requirements. DIN flanges are manufactured in materials like carbon steel, stainless steel, and alloy steel, ensuring durability, corrosion resistance, and versatility in industrial applications. DIN flange standards are widely adopted in European and global markets for their precision, reliability, and adherence to strict quality norms.

DIN 2501 - General specifications for flanges, including dimensions and tolerances.
DIN 2527 - Blind flanges (used to close pipe ends).
DIN 2573 - Plate flanges for low-pressure applications (PN6).
DIN 2576 - Slip-on flanges for medium-pressure systems (PN10).
DIN 2631 - Weld neck flanges for PN6 pressure rating.
DIN 2632 - Weld neck flanges for PN10 pressure rating.
DIN 2633 - Weld neck flanges for PN16 pressure rating.
DIN 2634 - Weld neck flanges for PN25 pressure rating.
DIN 2635 - Weld neck flanges for PN40 pressure rating.
DIN 86029 - Flanges for shipbuilding and marine piping systems.

Why Ample Alloys For DIN Pipe Flanges!

Ample Alloys stands out as a trusted and leading manufacturer, supplier, and exporter of DIN Pipe Flanges, offering unmatched quality, reliability, and customer satisfaction.

Extensive Product Range

Ample Alloys provides a comprehensive range of DIN flanges, including weld neck flanges, slip-on flanges, blind flanges, plate flanges, and more, catering to pressure classes such as PN6, PN10, PN16, PN25, PN40, and PN100.

Adherence to Standards

Ample Alloys strictly adheres to DIN standards and other international norms like ASTM, ASME, EN, and ISO, ensuring products meet precise specifications and global quality requirements.

Advanced Manufacturing Facilities

Equipped with state-of-the-art infrastructure and advanced machinery, Ample Alloys delivers flanges with accurate dimensions, perfect finishing, and strict quality control.

Global Supply Network

With a robust distribution network, Ample Alloys efficiently supplies DIN flanges to clients worldwide, ensuring timely deliveries and excellent service.

What are the common types of DIN Flanges?

Weld Neck Flange (DIN 2631, DIN 2633, DIN 2634, DIN 2635)
Slip-On Flange (DIN 2576, DIN 2502)
Blind Flange (DIN 2527)
Plate Flange (DIN 2573)

How do DIN Flanges different from ANSI Flanges?

DIN flanges follow the German standard with pressure ratings like PN6, PN10, PN16, etc., while ANSI flanges follow the ASME/ANSI B16.5 standard with pressure classes such as 150#, 300#, 600#, and so on. The dimensions and drilling patterns also differ between the two.

What is PN in DIN Flanges?

PN stands for Pressure Nominal, indicating the maximum allowable working pressure of the flange in bars at a specific temperature. For example, PN16 denotes a pressure rating of 16 bars.