DN 400 EN 1092-1 PN6 Flange Dimensions
DN 400 (16") to EN 1092-1: pipe OD 406.4 mm; OD 540 mm; PCD 495 mm; bolts 16; holes 22 mm.
Key to dimensions
- D
- Outside diameter of flange
- A
- Pipe outside diameter (hub diameter at the weld end)
- C
- Flange thickness, excluding raised face unless stated
- d1
- Raised face diameter
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolts
- L
- Bolt hole diameter
- Bolt
- Bolt size (metric M or inch diameter)
DN 400 EN 1092-1 PN6 Flange Dimensions — all dimensions
EN 1092-1 PN 6 flange dimensions (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Pipe OD — A | 406.4 mm | 16.00 in |
| Flange OD — D | 540 mm | 21.26 in |
| Bolt circle — K | 495 mm | 19.49 in |
| Number of bolts | 16 | |
| Hole dia — L | 22 mm | 0.866 in |
| Bolt size | M20 | |
| Plate (Type 01) — C | 28 mm | 1.10 in |
| Blind (Type 05) — C | 22 mm | 0.866 in |
| Weld neck (Type 11) — C | 22 mm | 0.866 in |
| Raised face — d1 | 465 mm | 18.31 in |
Values are nominal, from EN 1092-1 PN6 Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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DN 400 EN 1092-1 PN6 Flange Dimensions: common questions
What are the DN 400 EN 1092-1 PN6 Flange Dimensions?
DN 400 (16") to EN 1092-1: pipe OD 406.4 mm; OD 540 mm; PCD 495 mm; bolts 16; holes 22 mm.
Does Teshi Group manufacture DN 400 flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to EN 1092-1, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the DN 400 dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full EN 1092-1 PN6 Flange Dimensions chart.
Need DN 400 flanges?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
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