EN 12259-12:2023/prA1

Fixed firefighting systems - Components for sprinkler and water spray systems - Part 12: Pumps

This document specifies requirements for single stage and multi-stage centrifugal pumps with mechanical seal or soft packing for use in automatic sprinkler systems and is for use with EN 12845 and EN 17451 .
This document is applicable for the following pumps, independent of installed orientation (vertical, horizontal or sloped according to the manufacturer indications):
-   end suction pumps (close coupled or long coupled) of the back pull-out type pump;
-   axial horizontal split case pumps;
-   ring section pumps including multistage single or multi outlet;
-   single or multistage inline pumps (pump with inlet and outlet in line);
-   submersible motor borehole pumps.
This document is also applicable to vertical turbine pumps.

Ortsfeste Brandbekämpfungsanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen - Teil 12: Sprinklerpumpen

Installations fixes de lutte contre l'incendie - Composants des systèmes d'extinction du type sprinkleur et à pulvérisation d'eau - Partie 12 : Pompes

Vgrajene naprave za gašenje - Sestavni deli sprinklerskih sistemov in sistemov s pršečo vodo – 12. del: Črpalke - Dopolnilo A1

General Information

• Status: Not Published
• Publication Date: 22-Aug-2027
• ICS: 13.220.20 - Fire protection
• Technical Committee: CEN/TC 191 - Fixed firefighting systems
• Drafting Committee: CEN/TC 191/WG 5 - Sprinkler systems
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 20-Nov-2025
• Due Date: 04-Apr-2026
• Completion Date: 20-Nov-2025
• Ref Project: SIST EN 12259-12:2023/oprA1:2026 - Fixed firefighting systems - Components for sprinkler and water spray systems - Part 12: Pumps

Relations

• Amends: EN 12259-12:2023 - Fixed firefighting systems - Components for sprinkler and water spray systems - Part 12: Pumps
• Effective Date: 21-May-2025

Overview

EN 12259-12:2023/prA1 is the CEN document specifying requirements for single-stage and multi-stage centrifugal pumps used in automatic sprinkler and water spray systems. It applies regardless of installed orientation (vertical, horizontal or sloped, per manufacturer guidance) and is intended for use alongside EN 12845 and EN 17451. The amendment A1 modifies symbol definitions, the assessment method and Annex B illustrations to clarify pump performance and testing requirements.

This standard covers commonly used sprinkler pump types and focuses on ensuring reliable performance in fixed firefighting systems. It is prepared by CEN/TC 191 and circulated as a draft amendment for enquiry.

Key Topics

• Scope and applicability: Requirements for centrifugal pumps for automatic sprinkler systems, independent of orientation.
• Covered pump types:
  • End suction pumps (close or long coupled, back pull-out)
  • Axial horizontal split case pumps
  • Ring section pumps, including multistage single or multi outlet
  • Single or multistage inline pumps
  • Submersible motor borehole pumps
  • Vertical turbine pumps
• Mechanical arrangements: Mechanical seal or soft packing options are included in the scope.
• Assessment method updates: Amendment A1 adds NPSHr limits during performance assessment: a maximum NPSHr of 8.5 m for vertical line-shaft and submersible pumps, and 5.0 m for other pump types.
• Document updates: Removal of a NOTE in symbol definitions (3.2) and replacement of Figure B.1 in Annex B as part of prA1.

Applications

EN 12259-12:2023/prA1 is directly applicable to designers, specifiers, testing laboratories, and manufacturers of sprinkler pumps. Practical benefits include:

• Improved interoperability: Clear alignment with EN 12845 and EN 17451 supports coordinated system design and compliance.
• Enhanced reliability: Defined NPSHr limits and revised assessment rules help ensure pumps maintain suction performance under fire-system conditions.
• Broad applicability: Coverage of end-suction, split-case, inline, multistage and submersible pumps makes the standard suitable for a wide range of industrial, commercial and high-rise building installations.

Use cases:

• Selecting pump types for new sprinkler systems
• Verifying pump performance and NPSHr during factory or site testing
• Ensuring compatibility of pump components with automatic sprinkler installations

Related Standards

• EN 12845 - Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenance (primary design standard to be used with EN 12259-12).
• EN 17451 - Related guidance for system components and integration with sprinkler systems.

For manufacturers and specifiers, EN 12259-12:2023/prA1 provides essential requirements and assessment updates to support compliant, reliable sprinkler pump selection and testing in fixed firefighting systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2026
Vgrajene naprave za gašenje - Sestavni deli sprinklerskih sistemov in sistemov s
pršečo vodo – 12. del: Črpalke - Dopolnilo A1
Fixed firefighting systems - Components for sprinkler and water spray systems - Part 12:
Pumps
Ortsfeste Brandbekämpfungsanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen -
Teil 12: Sprinklerpumpen
Installations fixes de lutte contre l'incendie - Composants des systèmes d'extinction du
type sprinkleur et à pulvérisation d'eau - Partie 12 : Pompes
Ta slovenski standard je istoveten z: EN 12259-12:2023/prA1
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 12259-12:2023
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
November 2025
ICS
English Version
Fixed firefighting systems - Components for sprinkler and
water spray systems - Part 12: Pumps
Installations fixes de lutte contre l'incendie - Ortsfeste Brandbekämpfungsanlagen - Bauteile für
Composants des systèmes d'extinction du type Sprinkler- und Sprühwasseranlagen - Teil 12:
sprinkleur et à pulvérisation d'eau - Partie 12 : Pompes Sprinklerpumpen
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 12259-12:2023. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romani
...