EN 1591-1 / -4 Flange joint calculation; bolting personnel competence
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- EN 1591-1 2024; EN 1591-4 2013
- Publisher
- EN
- Part family
- Pipes, flanges & gaskets
- Reviewed
- 23 October 2026 · source checked
Is EN 1591-1 / -4 still current?
Yes. EN 1591-1 2024; EN 1591-4 2013 is the latest edition MechAtlas found (MechAtlas review: 23 October 2026). Check the publisher for amendments before you specify it.
What it covers
Flange joint calculation; bolting personnel competence
Equivalent and related standards
| Standard | Relationship | Note |
|---|---|---|
| ASME PCC-1 App. A | Similar purpose — not interchangeable without an engineering check |
“Similar” never means interchangeable without an engineering check.
Parts that use EN 1591-1 / -4
- Pipe flange (Europe (EN), related)
Bolted ring at a pipe end or valve that joins pipes, valves and equipment with a gasket between faces.
Calculation of bolted flange joints. - Flange gasket (Europe (EN), related)
Seal placed between two flange faces; types include flat sheet, spiral wound and metal ring joint.
Flange joint calculation and assembler qualification.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for EN 1591-1 / -4 or the EN store.
Open in MechAtlasCheck a drawing callout
Other pipes, flanges & gaskets standards
- DIN 2633 Replaced
Weld-neck flanges PN 16 (old DIN) - IS 13159-1 Withdrawn
Pipe flanges, dimensions - EN 10217-1 Changing
Welded pressure tubes, room temperature - EN 1092-1 Changing
Steel flanges, PN designated - API 5L Current
Line pipe - ASME B16.20 / B16.21 Current
Metallic / non-metallic gaskets - ASME B16.47 Current
Large flanges NPS 26–60, Series A and B (do not mate) - ASME B16.5 Current
Pipe flanges & flanged fittings - ASME B16.9 Current
Wrought butt-welding fittings - ASME B16.9 / B16.11 Current
Butt-weld / forged socket-weld & threaded fittings - ASME B36.10 Current
Welded & seamless wrought steel pipe - ASME B36.19 Current
Stainless steel pipe dimensions