SIST EN 17451:2025/oprA1:2026
(Amendment)Fixed firefighting systems - Automatic sprinkler systems - Design, assembly, installation and commissioning of pump sets
- Abstract
This document specifies design, assembly, installation and commissioning requirements for pump sets for use in sprinkler systems conforming to EN 12845:2015+A1:2019.
Where applicable, this document can also be used for pump sets for other water based fixed firefighting systems.
- Status
- Not Published
- Public Enquiry End Date
- 25-Nov-2026
- Technical Committee
- POZ - Požarna varnost
- Current Stage
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 10-Sep-2026
- Due Date
- 28-Jan-2027
SIST EN 17451:2025/oprA1:2026 is the Slovenian publication of the CEN draft amendment to EN 17451:2024 for fixed firefighting systems. It updates the rules for design, assembly, installation and commissioning of pump sets used in automatic sprinkler systems, and it is mainly relevant to people who specify, build, install, commission or review these pump sets.
This is a draft for enquiry, so the text can still change before approval.
What does SIST EN 17451:2025/oprA1:2026 specify?
SIST EN 17451:2025/oprA1:2026 amends EN 17451:2024, which covers pump sets for sprinkler systems. The base standard sets design, assembly, installation and commissioning requirements for pump sets used in systems conforming to EN 12845:2015+A1:2019, and it can also be applied, where relevant, to pump sets for other water based fixed firefighting systems.
The amendment is narrow in scope. It revises two definitions in the terminology clause, so the main effect is on how roles and activities are named and assigned in the rest of the standard.
The document is organized into a European foreword and two modification clauses:
- term 3.1.1
- term 3.1.12
What are the key requirements of SIST EN 17451:2025/oprA1:2026?
The amendment changes two core definitions used in the standard. In practice, that matters because the defined terms shape who is responsible for design, build and testing, and they help avoid ambiguity in contracts, technical files and quality records.
Assembly
Clause 1 replaces term 3.1.1. In SIST EN 17451:2025/oprA1:2026, assembly means the design, production by selecting and combining pump set components, and testing of the pump set.
For users, this means assembly is not only physical putting-together. It also includes choosing compatible parts and checking the completed set, so the party doing the assembly has a wider technical responsibility.
Pump set manufacturer
Clause 2 replaces term 3.1.12. In this amendment, pump set manufacturer is the pump set assembler, described as the entity responsible for the design, assembly and build of the pump set.
In practice, this aligns the manufacturer role with the party that actually creates the finished pump set. That helps when deciding who signs off design decisions, build records, test results and product identification.
Practical effect on documentation
Because the amendment changes terminology rather than adding new performance clauses, its main value is consistency. People writing specifications, declarations, inspection reports or commissioning documents should use the revised definitions so the responsible party is identified in the same way throughout the project.
What terms does SIST EN 17451:2025/oprA1:2026 define?
- assembly - the design, production by selection and combination of pump set components, and testing of the pump set.
- pump set manufacturer - the pump set assembler, meaning the entity responsible for the design, assembly and build of the pump set.
- pump set assembler - the party that carries out the design, assembly and build activities for the pump set.
- EN 17451:2024 - the European Standard that this draft amendment is intended to modify.
- EN 12845:2015+A1:2019 - the sprinkler-system standard used in the scope as the conformity basis for the pump sets.
- CEN - the European Committee for Standardization, which issues the European draft.
- CEN/TC 191 - the technical committee named in the foreword as responsible for preparing this draft.
Who uses SIST EN 17451:2025/oprA1:2026?
SIST EN 17451:2025/oprA1:2026 is used by manufacturers and assemblers of sprinkler pump sets, fire protection engineers, system designers, installers and commissioning teams. It is also relevant to quality managers, technical reviewers and buyers who need to assign responsibility clearly in projects based on sprinkler systems.
Anyone working to EN 12845-based sprinkler installations can use the revised definitions to keep specifications, procurement documents and inspection records aligned with the standard language.
What changed in SIST EN 17451:2025/oprA1:2026 from the previous edition?
SIST EN 17451:2025/oprA1:2026 is a draft amendment to EN 17451:2024. It changes:
- term 3.1.1, assembly
- term 3.1.12, pump set manufacturer
Which standards are used with SIST EN 17451:2025/oprA1:2026?
- EN 17451:2024 - the base European Standard that this amendment revises.
- EN 12845:2015+A1:2019 - the sprinkler-system standard named in the scope as the application basis for the pump sets.
What does the SIST EN 17451:2025/oprA1:2026 document contain?
The document contains a European foreword and two short clauses that replace existing terminology. One clause rewrites the definition of assembly and the other rewrites the definition of pump set manufacturer.
The foreword identifies the drafting committee, states that the text is under CEN enquiry, and presents the amendment as part of the EN 17451 series. The body of the draft is therefore focused on terminology control, not on test methods, worked examples or product tables.
Relations
- Effective Date
- 26-Oct-2025
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Frequently Asked Questions
SIST EN 17451:2025/oprA1:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Fixed firefighting systems - Automatic sprinkler systems - Design, assembly, installation and commissioning of pump sets". This standard covers: This document specifies design, assembly, installation and commissioning requirements for pump sets for use in sprinkler systems conforming to EN 12845:2015+A1:2019. Where applicable, this document can also be used for pump sets for other water based fixed firefighting systems.
This document specifies design, assembly, installation and commissioning requirements for pump sets for use in sprinkler systems conforming to EN 12845:2015+A1:2019. Where applicable, this document can also be used for pump sets for other water based fixed firefighting systems.
SIST EN 17451:2025/oprA1:2026 is classified under the following ICS (International Classification for Standards) categories: 13.220.10 - Fire-fighting; 13.220.20 - Fire protection. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 17451:2025/oprA1:2026 has the following relationships with other standards: It is inter standard links to SIST EN 17451:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 17451:2025/oprA1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2026
Vgrajene naprave za gašenje - Avtomatski sprinklerski sistemi - Projektiranje,
montaža, vgradnja in preverjanje črpalk - Dopolnilo A1
Fixed firefighting systems - Automatic sprinkler systems - Design, assembly, installation
and commissioning of pump sets
Ortsfeste Brandbekämpfungsanlagen - Automatische Sprinkleranlagen - Projektierung,
Zusammenbau, Montage und Inbetriebnahme von Pumpenaggregaten
Installations fixes de lutte contre l’incendie - Systèmes d’extinction automatique de type
sprinkleur - Conception, assemblage, installation et mise en service des groupes
motopompes
Ta slovenski standard je istoveten z: EN 17451:2024/prA1
ICS:
13.220.10 Gašenje požara Fire-fighting
13.220.20 Požarna zaščita Fire protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
EN 17451:2024
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
September 2026
ICS 13.220.20
English Version
Fixed firefighting systems - Automatic sprinkler systems -
Design, assembly, installation and commissioning of pump
sets
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen - Automatische
d'extinction automatique de type sprinkleur - Sprinkleranlagen - Projektierung, Zusammenbau,
Conception, assemblage, installation et mise en service Montage und Inbetriebnahme von Pumpenaggregaten
des groupes motopompes
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 191.
This draft amendment A1, if approved, will modify the European Standard EN 17451:2024. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria,
...