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EN 1092-1FlangesTG-DS-030 · Rev. 0 · October 2026

EN 1092-1 PN10 Flange Dimensions

This chart gives EN 1092-1 PN10 flange dimensions in millimetres for DN 10 to DN 600: outside diameter, bolt circle, bolt holes and bolting and raised face diameter. EN 1092-1 PN10 is the European flange standard most often specified on export and European-design projects.

Teshi Group manufactures flanges to EN 1092-1 on request — weld neck (Type 11), slip-on (Type 12), plate (Type 01) and blind (Type 05) — alongside its ASME B16.5 range.

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Key to dimensions

A
Pipe outside diameter (EN 10220 / ISO series 1)
D
Outside diameter of flange
K
Bolt circle (pitch circle) diameter
L
Bolt hole diameter
n
Number of bolts
d1
Raised face diameter

EN 1092-1 PN10 Flange Dimensions — tables

EN 1092-1 PN10 flange dimensions (mm)

EN 1092-1 PN10 flange dimensions (mm)
DNAPipe ODDFlange ODKBolt circleLHole dianBoltsBoltSized1Raised face
1017.29060144M1240
1521.39565144M1245
2026.910575144M1258
2533.711585144M1268
3242.4140100184M1678
4048.3150110184M1688
5060.3165125184M16102
6576.1185145188M16122
8088.9200160188M16138
100114.3220180188M16158
125139.7250210188M16188
150168.3285240228M20212
200219.1340295228M20268
250273.03953502212M20320
300323.94454002212M20370
350355.65054602216M20430
400406.45655152616M24482
450457.06155652620M24532
500508.06706202620M24585
600610.07807253020M27685

Notes

  • All dimensions are in millimetres.
  • Flange outside diameter, bolt circle and drilling are common to all EN 1092-1 flange types of the same DN and PN, so flanges of different types mate with each other.
  • Bolt sizes are metric (ISO). Bolt holes are 2–6 mm larger than the bolt, as tabulated.
  • Up to DN 150, PN10 flanges use the PN16 dimensions; from DN 200 the PN10 drilling differs. Flange thickness depends on the flange type — confirm against the standard for your type.

Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.

Equivalent and related standards to EN 1092-1 PN10 Flange Dimensions

All equivalents
RegionStandardRelationship
ChinaHG/T 20592 PN 10Chemical-industry PN flanges — EN 1092-1 (European system) dimensions
ChinaGB/T 9124.1 PN 10National standard steel pipe flanges, PN series — EN 1092-1 dimensions
InternationalISO 7005-1 PN 10ISO steel flanges, PN series
GermanyDIN 2631–2638 / DIN 2501 PN 10 (withdrawn)Former DIN flanges replaced by EN 1092-1
UKBS 4504 PN 10 (withdrawn)Former British PN flanges replaced by EN 1092-1
IndiaIS 6392 PN 10Indian PN flanges — closely related tables; check drilling
USAASME B16.5 (nearest class)Not interchangeable — inch-based Class system

Teshi Group manufactures flanges and fittings to all of these standards on request, including Chinese GB / HG / SH and European EN dimensions for export projects. Always confirm bolting, facing and thickness when substituting one standard for another.

Dimension finder

Pick a product, standard and size — or just type — to see every dimension and download a watermarked PDF for that one size.

EN 1092-1 PN10 Flange Dimensions — size by size

Every size has its own page with a drawing, mm and inch values and a one-size PDF.

FAQ

EN 1092-1 PN10 Flange dimensions: common questions

What are the dimensions of a DN100 PN10 flange?

A DN100 PN10 flange to EN 1092-1 has an outside diameter of 220 mm, a bolt circle of 180 mm and 8 holes of 18 mm for M16 bolts.

Is EN 1092-1 PN10 interchangeable with ASME B16.5 flanges?

No. EN 1092-1 flanges are drilled to metric bolt circles with metric bolts, while ASME B16.5 flanges use inch drilling. A PN flange will not bolt to a Class 150 or 300 flange without an adaptor or special drilling.

Does Teshi Group manufacture EN 1092-1 flanges?

Yes. Teshi Group manufactures weld neck, slip-on, plate and blind flanges to EN 1092-1 in India, in carbon steel (P245GH, P250GH, S235JR) and stainless steel (1.4301, 1.4404), with EN 10204 3.1 certificates.

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