Dimension table · Flanges · Type 05

Blind flange type 05: dimensions to EN 1092-1

Every dimension of the blind flange (type 05) in one table per pressure rating: the connection dimensions outside diameter D, bolt circle K, bolt holes n × L and raised face d₁, together with plate thickness C₄, 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 blind flange type 05 in full section (dimension letters to EN 1092-1): C₄ = plate thickness (including raised-face height f₁), d₁ = raised-face diameter, D = outside diameter. The blind flange is a solid disc without a bore; 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 plate thickness C₄. 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 blind flange, plate thickness C₄ is type-specific.

The blind flange (type 05) closes off pipe ends, branches and spare connections – for future extensions, inspection openings or pressure tests. As a solid disc without a bore it carries the full pressure area and therefore has the largest plate thickness of the type series from medium nominal sizes upward. ASME counterpart: blind flange. For an overview of all styles and their equivalents, see our page flange types international; the welding neck flange is covered on the page welding neck flange type 11.

The column headers use the dimension letters from the drawing above: n × ØL = number × diameter of bolt holes, M = bolt size, d₁ = raised face, K = bolt circle, D = outside diameter, C₄ = 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)

Blind flange type 05 to EN 1092-1, PN 6 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	n × ØL (mm)	M ¹	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₄ (mm) ²	Weight (kg) ³
10	4 × 11	M10	35	50	75	12	0.380
15	4 × 11	M10	40	55	80	12	0.438
20	4 × 11	M10	50	65	90	14	0.657
25	4 × 11	M10	60	75	100	14	0.821
32	4 × 14	M12	70	90	120	14	1.18
40	4 × 14	M12	80	100	130	14	1.39
50	4 × 14	M12	90	110	140	14	1.62
65	4 × 14	M12	110	130	160	14	2.14
80	4 × 18	M16	128	150	190	16	3.43
100	4 × 18	M16	148	170	210	16	4.22
125	8 × 18	M16	178	200	240	18	6.10
150	8 × 18	M16	202	225	265	18	7.51
200	8 × 18	M16	258	280	320	20	12.3
250	12 × 18	M16	312	335	375	22	18.5
300	12 × 22	M20	365	395	440	22	25.5
350	12 × 22	M20	415	445	490	22	31.8
400	16 × 22	M20	465	495	540	22	38.5
500	20 × 22	M20	570	600	645	24	60.1
600	20 × 26	M24	670	705	755	30	103
700	24 × 26	M24	775	810	860	40	178
800	24 × 30	M27	880	920	975	44	252

PN 10 – dimension table (DN 10–800)

Blind flange type 05 to EN 1092-1, PN 10 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	n × ØL (mm)	M ¹	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₄ (mm) ²	Weight (kg) ³
10	4 × 14	M12	40	60	90	16	0.722
15	4 × 14	M12	45	65	95	16	0.813
20	4 × 14	M12	58	75	105	18	1.14
25	4 × 14	M12	68	85	115	18	1.38
32	4 × 18	M16	78	100	140	18	2.03
40	4 × 18	M16	88	110	150	18	2.35
50	4 × 18	M16	102	125	165	18	2.88
65 ⁴	8 × 18	M16	122	145	185	18	3.51
80	8 × 18	M16	138	160	200	20	4.61
100	8 × 18	M16	158	180	220	20	5.65
125	8 × 18	M16	188	210	250	22	8.13
150	8 × 22	M20	212	240	285	22	10.5
200	8 × 22	M20	268	295	340	24	16.5
250	12 × 22	M20	320	350	395	26	24.1
300	12 × 22	M20	370	400	445	26	30.8
350	16 × 22	M20	430	460	505	26	39.6
400	16 × 26	M24	482	515	565	26	49.4
500	20 × 26	M24	585	620	670	28	75.2
600	20 × 30	M27	685	725	780	34	124
700	24 × 30	M27	800	840	895	38	183
800	24 × 33	M30	905	950	1015	48	297

PN 16 – dimension table (DN 10–800)

Blind flange type 05 to EN 1092-1, PN 16 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	n × ØL (mm)	M ¹	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₄ (mm) ²	Weight (kg) ³
10	4 × 14	M12	40	60	90	16	0.722
15	4 × 14	M12	45	65	95	16	0.813
20	4 × 14	M12	58	75	105	18	1.14
25	4 × 14	M12	68	85	115	18	1.38
32	4 × 18	M16	78	100	140	18	2.03
40	4 × 18	M16	88	110	150	18	2.35
50	4 × 18	M16	102	125	165	18	2.88
65 ⁴	8 × 18	M16	122	145	185	18	3.51
80	8 × 18	M16	138	160	200	20	4.61
100	8 × 18	M16	158	180	220	20	5.65
125	8 × 18	M16	188	210	250	22	8.13
150	8 × 22	M20	212	240	285	22	10.5
200	12 × 22	M20	268	295	340	24	16.2
250	12 × 26	M24	320	355	405	26	25.0
300	12 × 26	M24	378	410	460	28	35.1
350	16 × 26	M24	438	470	520	30	48.0
400	16 × 30	M27	490	525	580	32	63.5
500	20 × 33	M30	610	650	715	44	133
600	20 × 36	M33	725	770	840	54	226
700	24 × 36	M33	795	840	910	58	285
800	24 × 39	M36	900	950	1025	62	388

PN 25 – dimension table (DN 10–800)

Blind flange type 05 to EN 1092-1, PN 25 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order) – DN 700/800 by agreement (available on request, footnote 5)
DN	n × ØL (mm)	M ¹	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₄ (mm) ²	Weight (kg) ³
10	4 × 14	M12	40	60	90	16	0.722
15	4 × 14	M12	45	65	95	16	0.813
20	4 × 14	M12	58	75	105	18	1.14
25	4 × 14	M12	68	85	115	18	1.38
32	4 × 18	M16	78	100	140	18	2.03
40	4 × 18	M16	88	110	150	18	2.35
50	4 × 18	M16	102	125	165	20	3.20
65	8 × 18	M16	122	145	185	22	4.29
80	8 × 18	M16	138	160	200	24	5.54
100	8 × 22	M20	162	190	235	24	7.60
125	8 × 26	M24	188	220	270	26	10.8
150	8 × 26	M24	218	250	300	28	14.6
200	12 × 26	M24	278	310	360	30	22.5
250	12 × 30	M27	335	370	425	32	33.5
300	16 × 30	M27	395	430	485	34	46.3
350	16 × 33	M30	450	490	555	38	68.1
400	16 × 36	M33	505	550	620	40	89.7
500	20 × 36	M33	615	660	730	51	159
600	20 × 39	M36	720	770	845	66	278
700 ⁵	24 × 42	M39	820	875	960	–	–
800 ⁵	24 × 48	M45	930	990	1085	–	–

PN 40 – dimension table (DN 10–600)

Blind flange type 05 to EN 1092-1, PN 40 – connection and type dimensions in mm, weights in kg – availability: available (from stock or on order)
DN	n × ØL (mm)	M ¹	Ød₁ (mm)	ØK (mm)	ØD (mm)	C₄ (mm) ²	Weight (kg) ³
10	4 × 14	M12	40	60	90	16	0.722
15	4 × 14	M12	45	65	95	16	0.813
20	4 × 14	M12	58	75	105	18	1.14
25	4 × 14	M12	68	85	115	18	1.38
32	4 × 18	M16	78	100	140	18	2.03
40	4 × 18	M16	88	110	150	18	2.35
50	4 × 18	M16	102	125	165	20	3.20
65	8 × 18	M16	122	145	185	22	4.29
80	8 × 18	M16	138	160	200	24	5.54
100	8 × 22	M20	162	190	235	24	7.60
125	8 × 26	M24	188	220	270	26	10.8
150	8 × 26	M24	218	250	300	28	14.6
200	12 × 30	M27	285	320	375	36	28.8
250	12 × 33	M30	345	385	450	38	44.4
300	16 × 33	M30	410	450	515	42	64.2
350	16 × 36	M33	465	510	580	46	89.5
400	16 × 39	M36	535	585	660	50	127
500	20 × 42	M39	615	670	755	57	188
600	20 × 48	M45	735	795	890	72	331

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 blind flange type 05 with sealing face form B1, DN 200, PN 40 in P250GH is therefore designated:

Flange EN 1092-1/05 B1/DN 200/PN 40/P250GH

Since the blind flange has neither a bore nor a weld end, additional details such as hub wall thickness are not required – DN, PN, sealing face form and material are sufficient for an unambiguous order.

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

² Plate thickness C₄ including raised-face height f₁ (sealing face form B1).

³ Weights are indicative values for steel flanges; minor deviations are possible depending on manufacturer and design.

⁴ 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.

⁵ For DN 700 and DN 800, EN 1092-1 specifies only the connection dimensions at PN 25; the blind flange’s plate thickness and weight are not standardised (“–”) – execution by agreement, available on request.

For DN 10 to DN 40 the blind 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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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.