UNE-EN 13445-3-2014 A8-2019 PDF

Full title and description

STB UNE-EN 13445-3-2014 A8-2019 — Unfired pressure vessels — Part 3: Design (Amendment A8:2019). This document is the eighth amendment (A8) to EN 13445-3:2014 and updates design rules and specific clauses related to loads, nozzle local loads and anchor bolting.

Abstract

This amendment (A8:2019) introduces targeted revisions to the 2014 edition of EN 13445‑3 (Design). Key changes revise and clarify load combinations, nominal design stress for anchor bolting, local loads on nozzles for spherical and cylindrical shells, bending limit stress and related symbols/annex material. The amendment was prepared and published under the authority of CEN and issued in 2019.

General information

• Status: Amendment A8 (to EN 13445-3:2014). The amendment has been incorporated into later editions and the 2014 edition plus amendments has subsequently been superseded by the 2021 edition.
• Publication date: April 2019 (approved by CEN and published in 2019).
• Publisher: European Committee for Standardization (CEN) — issued as an EN amendment and adopted by national bodies (published as national adoptions such as UNE‑EN etc.).
• ICS / categories: 23.020.30 (Pressure vessels, gas cylinders).
• Edition / version: EN 13445-3:2014 (Amendment A8:2019) — commonly cited as EN 13445‑3:2014/A8:2019.
• Number of pages: 51 pages (A8 amendment document).

Scope

The amendment updates specific design requirements in EN 13445‑3:2014. It revises normative references and specific subclauses dealing with actions and load combinations, adds or modifies provisions for nominal design stress of anchor bolting, and modifies clauses governing local loads on nozzles (spherical and cylindrical shells), bending limit stress and related annex material (including amendments to Annex W and related symbolic definitions). The intent is to refine and clarify design calculations for unfired pressure vessels where these specific effects are significant.

Key topics and requirements

• Introduction and revision of load combination rules and their application in vessel design (new/clarified Subclause on load combinations).
• Nominal design stress rules for anchor bolting (added/clarified Subclause 6.7 in the amendment).
• Revised methods for calculating local loads on nozzles in spherical and cylindrical shells (changes to Clause 16 and related subclauses).
• Updated treatment of bending limit stress and related limit criteria for shell/nozzle connections.
• Clarifications to specific symbols, applied forces and load limits used in shell design calculations; updates to Annex W and normative references.
• Integration guidance intended for later national adoptions and incorporation into subsequent full revisions of EN 13445‑3.

Typical use and users

Design engineers, pressure‑vessel fabricators, certification and conformity assessment bodies, notified bodies, inspection and testing organizations, and national standards committees use this amendment when applying or interpreting EN 13445‑3 design rules. The amendment is used to ensure consistent treatment of load combinations, nozzle local loads and anchor bolting in calculation, documentation and conformity tasks for unfired pressure vessels.

Related standards

EN 13445 is a multi‑part standard for unfired pressure vessels; related parts include EN 13445‑1 (General), EN 13445‑2 (Materials), EN 13445‑4 (Fabrication), EN 13445‑5 (Inspection and testing) and EN 13445‑6 (requirements for cast iron). The A8 amendment to Part 3 was one of a sequence of amendments to the 2014 edition and the Part 3 content (2014 + amendments) has been superseded by the consolidated EN 13445‑3:2021 edition. National adoptions (UNE‑EN, BS EN, DIN EN, etc.) reflect the amendment where applicable.

Keywords

EN 13445, unfired pressure vessels, design, amendment A8, load combinations, nozzle local loads, anchor bolting, bending limit stress, CEN, UNE‑EN.

FAQ

Q: What is this standard?

A: This entry is an amendment — EN 13445‑3:2014/A8:2019 — to the European standard EN 13445‑3 (Unfired pressure vessels — Part 3: Design). It provides targeted updates to specific design clauses rather than being a full new edition.

Q: What does it cover?

A: It covers revisions and clarifications to design rules in EN 13445‑3:2014, specifically changes to load combinations, nominal design stress for anchor bolts, local nozzle load calculations for spherical and cylindrical shells, bending limit stress and related symbolic/annex content.

Q: Who typically uses it?

A: Pressure‑vessel designers and engineers, fabricators, inspection and testing bodies, conformity assessment and notified bodies, and standards committees use the amendment when applying EN 13445‑3 design requirements. National standards bodies publish their own adoptions (UNE‑EN, BS EN, DIN EN, NEN‑EN, etc.).

Q: Is it current or superseded?

A: The amendment was published in April 2019, but the 2014 edition of EN 13445 (with its sequence of amendments) has since been consolidated/replaced by EN 13445‑3:2021. Users should refer to the 2021 consolidated edition for the up‑to‑date, consolidated design rules; however, the A8 amendment documents are still useful for traceability of changes and national adoption history.

Q: Is it part of a series?

A: Yes — EN 13445 is a multi‑part European standard covering unfired pressure vessels. Part 3 is the Design part; the series includes Parts on general rules, materials, fabrication, inspection/testing and special material/constructive requirements. Amendments (A1…A8, etc.) were issued against the 2014 edition before the 2021 consolidated revision.

Q: What are the key keywords?

A: Unfired pressure vessels, design, load combinations, nozzle loads, anchor bolt stress, bending limit stress, EN 13445, amendment A8, CEN.