Dimension table · Flanges · Type 01

Plate flange type 01: dimensions to EN 1092-1

Every dimension of the plate flange (type 01) in one table per pressure rating: the bore B₁ and the connection dimensions outside diameter D, bolt circle K, bolt holes n × L and raised face d₁, together with plate thickness C₁, plus indicative weights – from PN 6 to PN 40, for all nominal sizes from DN 10 to DN 800. All dimensions in millimetres, dimension letters to EN 1092-1.

Dimensioned drawing of the plate flange type 01 in full section (dimension letters to EN 1092-1): B₁ = bore, C₁ = plate thickness (including raised-face height f₁), d₁ = raised-face diameter, D = outside diameter. The bolt hole is shown in section, the number and diameter of bolt holes n × L are given in the tables. Accent colour on the bore B₁. Drawing not to scale.

Connection dimensions are the same across types: outside diameter D, bolt circle K, bolt holes n × L and raised face d₁ apply per DN and PN to all flange types to EN 1092-1 – they are included in the tables here. For the type-independent overview of all pressure ratings, see our flange dimensions PN 6 to PN 40; for the plate flange, the bore B₁ and plate thickness C₁ are type-specific.

The plate flange (type 01) is slid over the pipe and fillet-welded inside and out – the simplest and most economical style for low pressure ratings and non-critical applications. Its key dimension is the bore B₁: it is slightly larger than the pipe outside diameter, allowing the flange to be slid on. For an overview of all styles, see our page flange types international; the other type pages: welding neck flange type 11 and blind flange type 05.

The column headers use the dimension letters from the drawing above: B₁ = bore, n × ØL = number × diameter of bolt holes, M = bolt size, d₁ = raised face, K = bolt circle, D = outside diameter, C₁ = plate thickness.

DN 10 – DN 800

Jump to pressure rating: PN 6 PN 10 PN 16 PN 25 PN 40

PN 6 – dimension table (DN 10–800)

Plate flange type 01 to EN 1092-1, PN 6 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	Pipe OD (mm)	B₁ (mm) ¹	n × ØL (mm)	M ²	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₁ (mm) ³	Weight (kg) ⁴
10	17.2	18.0	4 × 11	M10	35	50	75	12	0.356
15	21.3	22.0	4 × 11	M10	40	55	80	12	0.402
20	26.9	27.5	4 × 11	M10	50	65	90	14	0.592
25	33.7	34.5	4 × 11	M10	60	75	100	14	0.719
32	42.4	43.5	4 × 14	M12	70	90	120	16	1.16
40	48.3	49.5	4 × 14	M12	80	100	130	16	1.35
50	60.3	61.5	4 × 14	M12	90	110	140	16	1.48
65	76.1	77.5	4 × 14	M12	110	130	160	16	1.86
80	88.9	90.5	4 × 18	M16	128	150	190	18	2.95
100	114.3	116.0	4 × 18	M16	148	170	210	18	3.26
125	139.7	141.5	8 × 18	M16	178	200	240	20	4.31
150	168.3	170.5	8 × 18	M16	202	225	265	20	4.76
200	219.1	221.5	8 × 18	M16	258	280	320	22	6.88
250	273.0	276.5	12 × 18	M16	312	335	375	24	8.92
300	323.9	327.5	12 × 22	M20	365	395	440	24	11.9
350	355.6	359.5	12 × 22	M20	415	445	490	26	16.8
400	406.4	411.0	16 × 22	M20	465	495	540	28	19.8
500	508	513.5	20 × 22	M20	570	600	645	30	26.4
600	610	616.5	20 × 26	M24	670	705	755	32	34.8
700	711	721	24 × 26	M24	775	810	860	40	–
800	813	824	24 × 30	M27	880	920	975	44	–

PN 10 – dimension table (DN 10–800)

Plate flange type 01 to EN 1092-1, PN 10 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	Pipe OD (mm)	B₁ (mm) ¹	n × ØL (mm)	M ²	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₁ (mm) ³	Weight (kg) ⁴
10	17.2	18.0	4 × 14	M12	40	60	90	14	0.604
15	21.3	22.0	4 × 14	M12	45	65	95	14	0.670
20	26.9	27.5	4 × 14	M12	58	75	105	16	0.936
25	33.7	34.5	4 × 14	M12	68	85	115	16	1.11
32	42.4	43.5	4 × 18	M16	78	100	140	18	1.82
40	48.3	49.5	4 × 18	M16	88	110	150	18	2.08
50	60.3	61.5	4 × 18	M16	102	125	165	20	2.73
65 ⁵	76.1	77.5	8 × 18	M16	122	145	185	20	3.16
80	88.9	90.5	8 × 18	M16	138	160	200	20	3.60
100	114.3	116.0	8 × 18	M16	158	180	220	22	4.39
125	139.7	141.5	8 × 18	M16	188	210	250	22	5.41
150	168.3	170.5	8 × 22	M20	212	240	285	24	7.14
200	219.1	221.5	8 × 22	M20	268	295	340	24	9.27
250	273.0	276.5	12 × 22	M20	320	350	395	26	11.8
300	323.9	327.5	12 × 22	M20	370	400	445	26	13.6
350	355.6	359.5	16 × 22	M20	430	460	505	30	20.4
400	406.4	411.0	16 × 26	M24	482	515	565	32	27.5
500	508	513.5	20 × 26	M24	585	620	670	38	40.2
600	610	616.5	20 × 30	M27	685	725	780	42	54.5
700	711	721	24 × 30	M27	800	840	895	50	–
800	813	824	24 × 33	M30	905	950	1015	56	–

PN 16 – dimension table (DN 10–800)

Plate flange type 01 to EN 1092-1, PN 16 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	Pipe OD (mm)	B₁ (mm) ¹	n × ØL (mm)	M ²	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₁ (mm) ³	Weight (kg) ⁴
10	17.2	18.0	4 × 14	M12	40	60	90	14	0.604
15	21.3	22.0	4 × 14	M12	45	65	95	14	0.670
20	26.9	27.5	4 × 14	M12	58	75	105	16	0.936
25	33.7	34.5	4 × 14	M12	68	85	115	16	1.11
32	42.4	43.5	4 × 18	M16	78	100	140	18	1.82
40	48.3	49.5	4 × 18	M16	88	110	150	18	2.08
50	60.3	61.5	4 × 18	M16	102	125	165	20	2.73
65 ⁵	76.1	77.5	8 × 18	M16	122	145	185	20	3.16
80	88.9	90.5	8 × 18	M16	138	160	200	20	3.60
100	114.3	116.0	8 × 18	M16	158	180	220	22	4.39
125	139.7	141.5	8 × 18	M16	188	210	250	22	5.41
150	168.3	170.5	8 × 22	M20	212	240	285	24	7.14
200	219.1	221.5	12 × 22	M20	268	295	340	26	9.73
250	273.0	276.5	12 × 26	M24	320	355	405	29	14.2
300	323.9	327.5	12 × 26	M24	378	410	460	32	19.0
350	355.6	359.5	16 × 26	M24	438	470	520	35	28.2
400	406.4	411.0	16 × 30	M27	490	525	580	38	35.9
500	508	513.5	20 × 33	M30	610	650	715	46	64.0
600	610	616.5	20 × 36	M33	725	770	840	55	102
700	711	721	24 × 36	M33	795	840	910	63	–
800	813	824	24 × 39	M36	900	950	1025	74	–

PN 25 – dimension table (DN 10–800)

Plate flange type 01 to EN 1092-1, PN 25 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	Pipe OD (mm)	B₁ (mm) ¹	n × ØL (mm)	M ²	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₁ (mm) ³	Weight (kg) ⁴
10	17.2	18.0	4 × 14	M12	40	60	90	14	0.604
15	21.3	22.0	4 × 14	M12	45	65	95	14	0.670
20	26.9	27.5	4 × 14	M12	58	75	105	16	0.936
25	33.7	34.5	4 × 14	M12	68	85	115	16	1.11
32	42.4	43.5	4 × 18	M16	78	100	140	18	1.82
40	48.3	49.5	4 × 18	M16	88	110	150	18	2.08
50	60.3	61.5	4 × 18	M16	102	125	165	20	2.73
65	76.1	77.5	8 × 18	M16	122	145	185	22	3.48
80	88.9	90.5	8 × 18	M16	138	160	200	24	4.32
100	114.3	116.0	8 × 22	M20	162	190	235	26	6.07
125	139.7	141.5	8 × 26	M24	188	220	270	28	8.19
150	168.3	170.5	8 × 26	M24	218	250	300	30	10.3
200	219.1	221.5	12 × 26	M24	278	310	360	32	14.3
250	273.0	276.5	12 × 30	M27	335	370	425	35	20.1
300	323.9	327.5	16 × 30	M27	395	430	485	38	26.6
350	355.6	359.5	16 × 33	M30	450	490	555	42	41.8
400	406.4	411.0	16 × 36	M33	505	550	620	48	57.6
500	508	513.5	20 × 36	M33	615	660	730	58	87.0
600	610	616.5	20 × 39	M36	720	770	845	68	127
700	711	721	24 × 42	M39	820	875	960	85	–
800	813	824	24 × 48	M45	930	990	1085	95	–

PN 40 – dimension table (DN 10–600)

Plate flange type 01 to EN 1092-1, PN 40 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order) – DN 500/600 by agreement (available on request, footnote 6)
DN	Pipe OD (mm)	B₁ (mm) ¹	n × ØL (mm)	M ²	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₁ (mm) ³	Weight (kg) ⁴
10	17.2	18.0	4 × 14	M12	40	60	90	14	0.604
15	21.3	22.0	4 × 14	M12	45	65	95	14	0.670
20	26.9	27.5	4 × 14	M12	58	75	105	16	0.936
25	33.7	34.5	4 × 14	M12	68	85	115	16	1.11
32	42.4	43.5	4 × 18	M16	78	100	140	18	1.82
40	48.3	49.5	4 × 18	M16	88	110	150	18	2.08
50	60.3	61.5	4 × 18	M16	102	125	165	20	2.73
65	76.1	77.5	8 × 18	M16	122	145	185	22	3.48
80	88.9	90.5	8 × 18	M16	138	160	200	24	4.32
100	114.3	116.0	8 × 22	M20	162	190	235	26	6.07
125	139.7	141.5	8 × 26	M24	188	220	270	28	8.19
150	168.3	170.5	8 × 26	M24	218	250	300	30	10.3
200	219.1	221.5	12 × 30	M27	285	320	375	36	17.9
250	273.0	276.5	12 × 33	M30	345	385	450	42	29.3
300	323.9	327.5	16 × 33	M30	410	450	515	52	45.1
350	355.6	359.5	16 × 36	M33	465	510	580	58	66.7
400	406.4	411.0	16 × 39	M36	535	585	660	65	97.1
500 ⁶	508	513.5	20 × 42	M39	615	670	755	–	–
600 ⁶	610	616.5	20 × 48	M45	735	795	890	–	–

How to order unambiguously: the designation to EN 1092-1

The standard specifies a consistent designation system: Flange EN 1092-1, then type and sealing face form, nominal size, pressure rating and material. A plate flange type 01 with sealing face form B1, DN 200, PN 16 in S235JR is therefore designated:

Flange EN 1092-1/01 B1/DN 200/PN 16/S235JR

The bore B₁ is standardised and does not need to be stated – DN, PN, sealing face form and material are sufficient for an unambiguous order.

¹ B₁ = bore (in the standard: “bore diameter” B₁, applies to types 01, 12 and 32); it is larger than the pipe outside diameter (clearance for sliding the flange on). The plate flange is normally fillet-welded inside and out.

² M = metric bolt size to EN 1092-1; the bolt-hole diameter ØL is always larger than the bolt thread.

³ Plate thickness C₁ including raised-face height f₁ (sealing face form B1).

⁴ Weights are indicative values for steel flanges; minor deviations are possible depending on manufacturer and design. For DN 700 and DN 800 the standard gives no indicative weights (“–”).

⁵ DN 65 has 8 bolt holes at PN 10 and PN 16 to EN 1092-1. Older flanges to DIN 2501 have 4 holes here and are still common in existing plant – check the bolt-hole pattern for replacement and extension orders.

⁶ For DN 500 and DN 600, EN 1092-1 does not specify the plate thickness of the plate flange at PN 40 (“–”) – execution by agreement, available on request.

For DN 10 to DN 40 the plate flange dimensions of pressure ratings PN 10, PN 16 and PN 25 are identical to PN 40; for DN 50 to DN 150 this applies to PN 10 with PN 16 and to PN 25 with PN 40 respectively. For DN 700 and DN 800, pressure rating PN 40 is not standardised.

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Already know DN, PN and material? Zickwolff supplies blind flanges to EN 1092-1 in carbon and stainless steel, in all common pressure ratings – from Germany, across Europe.

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Technical basis: EN 1092-1. All information without guarantee – the current standard texts and the manufacturers’ technical data sheets always prevail. Values selected according to our delivery and stock programme; compiled from our own ERP data and long-standing trading practice, cross-checked against publicly available manufacturer information and reference tables. These tables do not replace the standard text – the current edition of the standard always governs. Editorially reviewed: August 2026. Standards and manufacturer status considered: August 2026.