EN 1092-1 Flanges | PN6-PN100 | Type 01-13

PM Industries manufactures, supplies, and stocks EN 1092-1 flanges, the European standard for circular steel flanges used on pipes, valves, fittings, and accessories. Published as BS EN 1092-1, the specification sets dimensions so flanges match each other across piping systems. It covers PN (Pressure Nominal) designations from PN 2.5 up to PN 400 and nominal diameters (DN) from 10 to 4000, and it defines the flange types along with their tolerances, bolting, and surface finishes.

The standard lists several types by number. These include Type 01 (plate flange for welding), Type 11 (weld neck), Type 12 (slip-on), Type 05 (blind), Type 13 (threaded), and various lap joint forms. PM Industries supplies them in carbon steel, stainless steel, and alloy grades, all built to the European dimensions for easy interchange. Common pressure ratings such as PN 6, PN 10, PN 16, PN 25, PN 40, and higher classes give room to cover low through very high pressure. The standard also sets pressure-temperature ratings by material group, so the flange stays safe under different thermal and mechanical loads, and it allows face types such as Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) to suit different sealing needs.

EN 1092-1 flanges are used across oil and gas, chemical processing, power generation, water treatment, pharmaceutical, and food work throughout Europe and other regions that follow metric standards. The design holds up in critical service with corrosive media, high temperature, and significant pressure. Buyers value the grades for good weldability, easy installation, and steady reliability in both new construction and maintenance.

PM Industries holds a full range of EN 1092-1 flanges in different materials, sizes, and pressure classes, all backed by certification and traceability. The line runs from carbon steel weld neck flanges for pipeline projects to stainless steel blind flanges for hygienic work. Clear rules on marking, testing, and quality give engineers and procurement teams confidence, and the common dimensions make international projects simpler while keeping them in line with European requirements. As a manufacturer, supplier, and stockist, PM Industries ships standard and custom EN 1092-1 flanges against fast quotes.

Specification EN 1092-1 Flanges

Standards	ANSI/ASME B16.5, B16.48, ANSI Flanges, GOST Flanges, DIN Flanges, EN-1092, B16.47 Series A & B, ASME Flanges, EN Flanges, AWWA Flanges, BS Flanges.
JIS Standard	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
DIN FLANGES	DIN 2527, 2627, 2631, 2656, 2576, 2673, 2629, 2628, 2566, 2641, 2637, 2655, 2634, 2636, 2632, 2633, 2638, 2642, 2573, 2635.
Pressure Rating	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Types	Threaded, Plate, Screwed, Forged.
Supporting material	Gasket, Ring Joint, Flange Bolts
Size range	1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Production technique	Forged, machined and Heat treated
Available Flange Type	Weld Neck Flanges, RTJ Flanges, Slip On Flanges, Spectacle Blind Flanges, Flanges Gaskets, Square Flanges, Standard Insert Flanges, High Hub Blinds Flanges, Flat Flanges, forged flanges, Weldo / Nipo Flanges, Jacket Insert Flanges, Tongue groove Flanges, Blind Flanges, Socket Weld Flanges, Large diameter Flanges, Long Weld Neck Flanges, Spacer Blinds, SWRF Flanges, SORF Flanges, Angle Face Rings Flanges, Spades Ring Spacers Flanges, WNRF Flanges, Screwed Flanges, Insert Flanges, flanges bolts, cf flange, Lap Joint Flanges, ASME B16.36 Orifice Flanges, Plate Flange, Expander Flanges, Ring Type Joint Flanges, Loose Flanges, Reducing Flanges, puddle flange, Threaded Flanges, blank flange, vacuum flange.
Connect Type/ Flange Face Type	Ring Type Joint (RTJ), Flat Face (FF), Tongue & Groove, Small Male-Female (SMF), Lap-Joint Face (LJF), Raised Face (RF), Large Male-Female (LMF), Small Tongue.
Custom design	As per your drawing
Test	Direct-reading Spectrograph, X-ray detector, UItrasonic flaw detector, Magnetic particle detector, Hydrostatic testing machine.
Origin	Indian / USA / Korean / West Europe / Japan
Pressure Class	PN 6 TO PN 100
Thickness	Normal Pipe Size ≤ 18
Bore Diameter	Normal Pipe ≤ 10
High Temperature	Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature	Above -29 Degree C (−20°F)
Coating/Surface Treatment:	Zinc Plated, Anti-rust Paint, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized.
European/African/Russian Standard Flanges	Available
Gaskets Types	Full Face, Metallic Ring, Flat Ring Gasket
Marking Standard	Name of Manufacturer
	Schedule
	Type of Flange Facing
	Pressure Class
	Nominal Pipe Size, etc
Test Certificates	EN 10204/3.1B, NACE MR0103, NACE MR0175
	Raw Materials Certificate
	100% Radiography Test Report
	Third Party Inspection Report, etc

Flange Type Available

En 1092-1 Pn 6 Flange Dimensions

Flange DN	Pipe	Flange				Screws		Flange Weight
		d1	k	D	b	d2	Bolt holes	KG
15	21,3	22,0	55	80	12	11	4	0,401
20	26,9	27,5	65	90	14	11	4	0,590
25	33,7	34,5	75	100	14	11	4	0,716
32	42,4	43,5	90	120	16	14	4	1,153
40	48,3	49,5	100	130	16	14	4	1,344
50	60,3	61,5	110	140	16	14	4	1,478
65	76,1	77,5	130	160	16	14	4	1,850
80	88,9	90,5	150	190	18	18	4	2,944
100	114,3	116,0	170	210	18	18	4	3,247
125	139,7	141,5	200	240	20	18	8	4,301
150	168,3	170,5	225	265	20	18	8	4,741
200	219,1	221,5	280	320	22	18	8	6,862
250	273,0	276,5	335	375	24	18	12	8,893
300	323,9	327,5	395	440	24	22	12	11,880
350	355,6	359,5	445	490	26	22	12	16,788
400	406,4	411,0	495	540	28	22	16	19,781
450	457,0	462,0	550	595	30	22	16	24,495
500	508,0	513,5	600	645	30	22	20	26,307
600	610,0	616,5	705	755	32	26	20	34,702
700	711,0	714,2	810	860	40	26	24	52,441
800	813,0	815,8	920	975	44	30	24	71,262
900	914,0	917,4	1020	1075	48	30	24	86,269
1000	1016,0	1019,0	1120	1175	52	30	28	101,340
1200	1220,0	1224,0	1340	1405	60	33	32	162,638
1400	1420,0	1424,0	1560	1630	72	36	36	257,772
1600	1620,0	1624,0	1760	1830	80	36	40	324,382
1800	1820,0	1826,0	1970	2045	88	39	44	422,35
2000	2020,0	2026,0	2180	2265	96	42	48	555,18

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Bs En 1092-1 Pn10 Flange Dimensions

Flange DN	Pipe	Flange				Screws		Flange Weight
		d1	k	D	b	d2	Bolt holes	KG
200	219,1	221,5	295	340	24	22	8	9,244
250	273,0	276,5	350	395	26	22	12	11,788
300	323,9	327,5	400	445	26	22	12	13,578
350	355,6	359,5	460	505	30	22	16	21,766
400	406,4	411,0	515	565	32	26	16	27,436
450	457,2	462,0	565	615	36	26	20	33,470
500	508,0	513,5	620	670	38	26	20	40,103
600	610,0	616,5	725	780	42	30	20	54,297
700	711,0	714,2	840	895	50	30	24	82,777
800	813,0	815,8	950	1015	56	33	24	116,534
900	914,0	917,4	1050	1115	62	33	28	141,425
1000	1016,0	1019,0	1160	1230	70	36	28	188,561
1200	1219,0	1224,0	1380	1455	83	39	32	290,884

En 1092 Pn16 Flange Dimensions

Flange DN	Pipe	Flange				Screws		Flange Weight
		d1	k	D	b	d2	Bolt holes	KG
10	17,2	18,0	60	90	14	14	4	0,602
15	21,3	22,0	65	95	14	14	4	0,668
20	26,9	27,5	75	105	16	14	4	0,933
25	33,7	34,5	85	115	16	14	4	1,106
32	42,4	43,5	100	140	18	18	4	1,816
40	48,3	49,5	110	150	18	18	4	2,075
50	60,3	61,5	125	165	20	18	4	2,723
65	76,1	77,5	145	185	20	18	4	3,310
80	88,9	90,5	160	200	20	18	8	3,592
100	114,3	116,0	180	220	22	18	8	4,375
125	139,7	141,5	210	250	22	18	8	5,394
150	168,3	170,5	240	285	24	22	8	7,123
200	219,1	221,5	295	340	26	22	12	9,705
250	273,0	276,5	355	405	29	26	12	14,164
300	323,9	327,5	410	460	32	26	12	18,928
350	355,6	359,0	470	520	35	26	16	28,118
400	406,4	411,0	525	580	38	30	16	35,754
450	457,0	462,0	585	640	42	30	20	45,992
500	508,0	513,5	650	715	46	33	20	63,832
600	610,0	616,5	770	840	55	36	20	101,285
700	711,0	714,2	840	910	63	36	24	111,103
800	813,0	815,8	950	1025	74	39	24	158,555
900	914,0	917,4	1050	1125	82	39	28	192,239
1000	1016,0	1019,0	1170	1255	90	42	28	269,554

Bs En 1092-1 Pn25 Flange Dimensions

Flange DN	Pipe	Flange				Screws		Flange Weight
		d1	k	D	b	d2	Bolt holes	KG
15	21,3	22,0	65	95	14	14	4	0,668
20	26,9	27,5	75	105	16	14	4	0,933
25	33,7	34,5	85	115	16	14	4	1,106
32	42,4	43,5	100	140	18	18	4	1,816
40	48,3	49,5	110	150	18	18	4	2,075
50	60,3	61,5	125	165	20	18	4	2,723
65	76,1	77,5	145	185	22	18	8	3,465
80	88,9	90,5	160	200	24	18	8	4,310
100	114,3	116,0	190	235	26	22	8	6,056
125	139,7	141,5	220	270	28	26	8	8,170
150	168,3	170,5	250	300	30	26	8	10,238
200	219,1	221,5	310	360	32	26	12	14,245
250	273,0	276,5	370	425	35	30	12	20,087
300	323,9	327,5	430	485	38	30	16	26,526
350	355,6	359,5	490	555	42	33	16	41,656
400	406,4	411,0	550	620	48	36	16	57,456
450	457,0	462,0	600	670	54	36	20	69,548
500	508,0	513,5	660	730	58	36	20	86,736
600	610,0	616,5	770	845	68	39	20	126,866
700	711,2	714,0	875	960	85	42	24	193,031
800	812,8	816,0	990	1085	95	48	24	266,311

En 1092-1 Pn 40 Flange Dimensions

Flange DN	Pipe	Flange				Screws		Flange Weight
		d1	k	D	b	d2	Bolt holes	KG
15	21,3	22,0	65	95	14	14	4	0,668
20	26,9	27,5	75	105	16	14	4	0,933
25	33,7	34,5	85	115	16	14	4	1,106
32	42,4	43,5	100	140	18	18	4	1,816
40	48,3	49,5	110	150	18	18	4	2,075
50	60,3	61,5	125	165	20	18	4	2,723
65	76,1	77,5	145	185	22	18	8	3,465
80	88,9	90,5	160	200	24	18	8	4,310
100	114,3	116,0	190	235	26	22	8	6,056
125	139,7	141,5	220	270	28	26	8	8,170
150	168,3	170,5	250	300	30	26	8	10,238
200	219,1	221,5	320	375	36	30	12	17,871
250	273,0	276,5	385	450	42	33	12	29,166
300	323,9	327,5	450	515	52	33	16	44,921
350	355,6	359,5	510	580	58	36	16	66,460
400	406,4	411,0	585	660	65	39	16	96,822

En 1092 1 Flange Pressure Rating

				Temperature
FLANGE TABLE	-10°C to 200°C	250°C	300°C	350°C	400°C	425°C	450°C	475°C
6	6	5.5	5	–	–	–	–	–
10	10	9	8	7	6	–	–	–
16	16	15	13	11	9	–	–	–
25	25	24	21	17	14	12	9	6
40	40	38	33	28	23	20	15	10
64	64	61	53	44	36	32	24	16
100	100	95	83	70	57	50	37	25
160	160	152	132	112	92	80	60	40

Flange En 1092-1 Type 11 Weight

Rated Diameter	Flange					Neck				Raised face		Screws			Weight (7,85 Kg/dm3)
	d1	k	D	b	h1	d3	s	r	h2	d4	f	d2	Thread	Bolt holes	Kg
15	21,3	65	95	16	38	32	2,00	4	6	45	2	14	M12	4	0,678
20	26,9	75	105	18	40	40	2,30	4	6	58	2	14	M12	4	0,768
25	33,7	85	115	18	40	46	2,60	4	6	68	2	14	M12	4	1,090
32	42,4	100	140	18	42	56	2,60	6	6	78	2	18	M16	4	1,300
40	48,3	110	150	18	45	64	2,60	6	7	88	3	18	M16	4	1,910
50	60,3	125	165	18	45	74	2,9	6	8	102	3	18	M16	4	2,530
65	76,1	145	185	18	45	92	2,9	6	10	122	3	18	M16	4	3,030
80	88,9	160	200	20	50	105	3,2	6	10	138	3	18	M16	8	3,920
100	114,3	180	220	20	52	131	3,6	8	12	158	3	18	M16	8	4,620
125	139,7	210	250	22	55	156	4,0	8	12	188	3	18	M16	8	6,300
150	168,3	240	285	22	55	184	4,5	10	12	212	3	22	M20	8	7,810
200	219,1	295	340	24	62	235	6,30	10	16	268	3	22	M20	12	11,500
250	273,0	355	405	26	70	292	6,30	12	16	320	3	26	M24	12	16,700
300	323,9	410	460	28	78	344	7,10	12	16	378	4	26	M24	12	22,100
350	355,6	470	520	30	82	390	8,00	12	16	438	4	26	M24	16	32,800
400	406,4	525	580	32	85	445	8,00	12	16	490	4	30	M27	16	41,100
450	457,0	585	640	34	83	490	8,00	12	16	550	4	30	M27	20	48,500
500	508	650	715,0	36	84	548	8,0	12	16	610	4	33	M30	20	63,400
600	610	770	840,0	40	88	670	10,0	12	18	725	5	36	M33	20	96,000
700	711	840	910,0	40	104	755	10,0	12	18	795	5	36	M33	24	96,500
800	813	950	1025,0	41	108	855	12,5	12	20	900	5	39	M36	24	122,000
900	914	1050	1125,0	48	118	955	12,5	12	20	1000	5	39	M36	28	155,000
1000	1016	1170	1255,0	59	137	1058	12,5	16	22	1115	5	42	M39	28	233,000
1200	1219	1390	1485,0	78	160	1262	14,2	16	30	1330	5	48	M45	32	390,000
1400	1422	1590	1685,0	84	177	1465	16,0	16	30	1530	5	48	M45	36	495,000
1600	1626	1820	1930,0	102	204	1668	17,5	16	35	1750	5	56	M52	40	760,000
1800	1829	2020	2130,0	110	218	1870	20,0	16	35	1950	5	56	M52	44	929,000
2000	2032	2230	2345,0	124	238	2072	22,0	16	40	2150	5	62	M56	48	1.185,000

Frequently Asked Questions

A common first question is what EN 1092-1 covers. It is the European standard for circular steel flanges, setting types, dimensions, pressure-temperature ratings, bolting, and finishes for PN 2.5 to PN 400 and DN 10 to DN 4000. PM Industries supplies flanges built to this standard.

Buyers also ask what the type numbers mean. Type 11 is a weld neck, Type 01 is a plate flange for welding, Type 12 is slip-on, Type 05 is blind, and Type 13 is threaded, with lap joint forms also covered. PM Industries can match the type to your connection and pressure class.

On materials and faces, the flanges are made in carbon steel, stainless steel, and alloy grades, with Raised Face, Flat Face, or Ring Type Joint faces depending on the seal required. Each order ships with certification and traceability.