prEN 671-2

Fixed firefighting sytems - Hose systems - Part 2: Hose system with lay-flat hose

Requirements and methods of test for the construction and performance of fire hose reel systems with lay-flat hose for installation in buildings and other construction works, permanently connected to a water supply for use by the occupants

Ortsfeste Löschanlagen - Wandhydranten - Teil 2: Wandhydranten mit Flachschlauch

Installations fixes de lutte contre l'incendie - Systèmes équipés de tuyaux - Partie 2 : Postes d'eau muraux équipés de tuyaux plats

Vgrajeni gasilni sistemi – Cevni sistemi – 2. del: Cevni sistemi s plosko cevjo

General Information

• Status: Not Published
• ICS: 13.220.20 - Fire protection
• Technical Committee: CEN/TC 191 - Fixed firefighting systems
• Drafting Committee: CEN/TC 191/WG 9 - Hydrant and hose reel systems
• Current Stage: 5098 - Decision to abandon - Formal Approval
• Start Date: 03-Jun-2009
• Completion Date: 03-Jun-2009
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/109 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on fire alarm/detection, fixed firefighting, fire and smoke control and explosion suppression products
• Ref Project: oSIST prEN 671-2:2006 - Fixed firefighting systems - Hose systems - Part 2: Hose system with lay-flat hose

Relations

• Revises: EN 671-2:2001 - Fixed firefighting systems - Hose systems - Part 2: Hose systems with lay-flat hose
• Effective Date: 18-Jan-2023

Overview

prEN 671-2 is a European standard developed by CEN that defines requirements and testing methods for fire hose systems equipped with lay-flat hoses. These fixed firefighting systems are designed for permanent installation in buildings and other structures, connected directly to a water supply, and intended for use by occupants to combat fires effectively. This standard plays a vital role in ensuring reliable performance, user safety, and durability of hose reel systems with lay-flat hoses.

By adhering to prEN 671-2, manufacturers and building designers can guarantee that hose systems meet stringent specifications for construction, operation, and maintenance, complying with relevant EU directives and supporting fire safety objectives.

Key Topics

• Scope and Application
  The standard covers construction and performance requirements as well as test methods for hose reel systems using lay-flat hoses. While primarily focused on building installations, it can also support other specialized environments such as marine or aggressive conditions with supplementary requirements.

• Hose System Components
  The system comprises various elements including:

  • Cabinet to protect the hose system from environmental and physical damage.
  • Hose assembly, featuring non-percolating lay-flat hoses.
  • Hose supports, which may be rotating reels, cradles, or hose baskets for storage.
  • Couplings for secure connection between hose, valves, and nozzles.
  • Manual stop valves and shut-off nozzles for controlling the water flow and discharge.

• Designations and Mounting Types
  Hose systems are classified by mounting methods (wall recess, cabinet-mounted, or surface-mounted) and by hose support type, providing standardized ways to identify and specify systems suited for different architectural and operational needs.

• Testing and Performance Criteria
  The standard defines rigorous testing protocols for:

  • Resistance to internal pressure and corrosion.
  • Mechanical resistance, including impact and operating torque of nozzles.
  • Hydraulic performance assessing minimum flow rates, spray characteristics, and effective throw range.
  • Durability tests ensuring long service life and minimal maintenance.

• Marking and Instructions
  Requirements for color coding, identification symbols, and user instructions help ensure quick recognition and proper use during emergencies, enhancing occupant safety.

Applications

• Building Fire Safety
  prEN 671-2 compliant hose systems provide occupants immediate access to effective firefighting equipment, aiding in early fire suppression and evacuation. These systems are ideal for commercial, residential, and industrial buildings.

• Construction and Retrofitting
  Construction professionals use this standard to design and install fire hose reel systems that meet regulatory fire codes and quality benchmarks. It also assists in upgrading existing installations to modern safety standards.

• Specialized Environments
  With additional requirements, this standard is applicable for marine vessels or other aggressive environments where fixed lay-flat hose systems are installed for firefighting.

Related Standards

• EN 671-1: Fixed firefighting systems – Hose reels with semi-rigid hose.
• EN 671-3: Maintenance of hose reels and lay-flat hose systems, providing essential guidance to keep systems operational over their lifecycle.
• EN 14540: Fire-fighting hoses – Specifications for non-percolating lay-flat hoses suitable for fixed systems.
• ISO 5208: Requirements for pressure testing industrial valves, relevant to system valve components.
• ISO 6309: Safety signs for fire protection, related to proper system marking and user instruction compliance.

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By following prEN 671-2 guidelines, stakeholders ensure that fixed firefighting hose systems with lay-flat hoses deliver reliable performance and contribute significantly to occupant safety and property protection during fire emergencies. This standard forms an essential framework for quality assurance, system design, testing, and maintenance within the fixed fire protection sector.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2006
Vgrajeni gasilni sistemi – Cevni sistemi – 2. del: Cevni sistemi s plosko cevjo
Fixed firefighting sytems - Hose systems - Part 2: Hose system with lay-flat hose
Ortsfeste Löschanlagen - Wandhydranten - Teil 2: Wandhydranten mit Flachschlauch
Installations fixes de lutte contre l'incendie - Systemes équipés de tuyaux - Partie 2 :
Postes d'eau muraux équipés de tuyaux plats
Ta slovenski standard je istoveten z: prEN 671-2
ICS:
13.220.10 Gašenje požara Fire-fighting
23.040.70 Gumene cevi in armature Hoses and hose assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2006
ICS 13.220.20 Will supersede EN 671-2:2001
English Version
Fixed firefighting sytems - Hose systems - Part 2: Hose system
with lay-flat hose
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Löschanlagen - Wandhydranten - Teil 2:
équipés de tuyaux - Partie 2 : Postes d'eau muraux équipés Wandhydranten mit Flachschlauch
de tuyaux plats
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 191.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard 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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
: This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
Warning
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 671-2:2006: E
worldwide for CEN national Members.

Contents Page
Foreword.4
Introduction .5
1 Scope.5
2 Normative references.5
3 Terms and definitions .6
4 Designation.6
4.1 General.6
4.2 Method of mounting .6
4.3 Hose support.7
4.3.1 General.7
4.3.2 Type 1.7
4.3.3 Type 1 and 3 .7
5 Hose and hose assemblies.7
5.1 General.7
5.2 Hose bore.7
5.3 Maximum length.7
5.4 Couplings.7
5.4.1 General.7
5.4.2 Coupling bindings.8
6 Shut-off nozzle.8
6.1 General.8
6.2 Resistance to impact.8
6.3 Operating torque.8
6.4 Marking of control settings.8
7 Inlet stop valve.9
8 Cabinets.9
8.1 General.9
8.2 Opening device.9
8.3 Cabinets for manual hose system with screw down type valves.10
8.4 Form C cabinets.10
9 Materials.10
9.1 Resistance to external corrosion.10
9.2 Plastics materials.10
9.3 Resistance to corrosion of waterways .10
10 Hydraulic properties.10
10.1 Resistance to internal pressure .10
10.2 Security of couplings .10
10.3 Minimum flow rate .11
10.4 Effective throw range .11
10.5 Spray discharge.11
11 Colour, symbols, marking and instructions .11
11.1 Colour.11
11.2 Identification symbol.12
11.3 Marking.12
11.4 Instruction for use .12
11.5 Installation and maintenance instructions.12
12 Evaluation of conformity .12
12.1 General.12
12.2 Initial type testing .12
12.3 Factory production control (FPC).13
Annex A (normative) Schedule for initial type testing .14
A.1 Test sequence.14
Valve requirements .14
Annex B (normative) Test method for resistance to external corrosion .15
B.1 Coated parts.15
B.1.1 Test piece.15
B.1.2 Procedure.15
B.2 Uncoated parts.15
B.2.1 Procedure.15
Annex C (normative) Ageing test for plastics materials.16
C.1 Procedure.16
Annex D (normative) Test method for resistance to corrosion of waterways.17
D.1 Procedure.17
Annex E (normative) Test methods for nozzle.18
E.1 Resistance to impact.18
E.2 Operating torque.18
E.3 Measurement of spray angle.18
E.4 Measurement of flow rate and throw range.19
E.4.1 Flow rate.19
E.4.2 Throw range.21
E.5 Test method for resistance to internal pressure.21
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Construction Products Directive 89/106.22

Foreword
This document (prEN 671-2:2006) has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting
sytems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 671-2:2001.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, B, C or D, which is an integral part of this
document.
EN 671 has the general title “Fixed firefighting systems – Hose systems” and is in three parts;
Part 1: Hose reels with semi-rigid hose
Part 2: Hose systems with lay-flat hose
Part 3: Maintenance of hose reels with semi-rigid hose and hose systems with lay-flat hose

Introduction
Hose systems in proper condition provide a very effective firefighting facility with a continuous supply of water
available immediately.
The requirements of this standard have been framed to ensure that hose systems can be operated efficiently
by one person and that such systems will have a long service life and will not need excessive maintenance.
1 Scope
This European Standard specifies requirements and methods of test for the construction and performance of
fire hose systems with lay-flat hose for installation in buildings and other construction works, permanently
connected to a water supply, for use by the occupants.
Its requirements may apply in general for other applications, for example in marine applications or in
aggressive environments, but additional requirements may be necessary in such cases.
For convenience of application in conformity testing, the normative annexes of this standard are arranged so
that annex A gives the sequence of testing for conformity assessment and annexes B, C, D and E are in the
correct sequence for testing.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies (including amendments).
EN 671-3:2000, Fixed firefighting systems - Hose systems – Part 3: Maintenance of hose reels with semi-rigid
hose and hose systems with lay-flat hose
EN ISO 4892-2:1999, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc sources
(ISO 4892-2:1994)
EN ISO 9001:2000, Quality systems – Requirements
EN 14540:2004, Fire-fighting hoses - Non-percolating layflat hoses for fixed systems
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads – Part 1: Dimensions,
tolerances and designation.
ISO 5208:1993, Industrial valves – Pressure testing of valves
ISO 6309:1987, Fire protection – Safety signs
ISO 9227:1990, Corrosion tests in artificial atmospheres; salt spray tests
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply:
3.1
cabinet
box to protect the hose system against environmental or physical damage

3.2
coupling
device used to connect the hose to the valve and to the shut-off nozzle

3.3
fire hose system; hose system
firefighting appliance consisting essentially of a cabinet or cover, hose support, manual stop valve, lay-flat
hose with couplings, shut-off nozzle

3.4
hose support
device used to hold the hose
3.5
lay-flat hose
hose which is flat-sectioned except when it is internally pressurized

3.6
maximum working pressure
maximum allowable pressure for which the hose system is designed
NOTE All pressures are gauge pressures and are expressed in Mega Pascal. 1 MPa = 10 bar.
3.7
shut-off nozzle
component at the end of the hose used to direct and control the discharge of water

4 Designation
4.1 General
A hose system shall be designated according to its method of mounting (see 4.2), the form of hose support
(see 4.3), the diameter of hose in millimetres and the length of hose in metres.
Thus the hose system in a cabinet for surface mounting, with the hose on a reel, fitted with 52 mm diameter
hose of length 20 m, is designated:
EN671-2C-1/52-20.
4.2 Method of mounting
A hose system shall be designed for mounting in one of the following forms:
- form A: in a wall recess with cover;
- form B: in a cabinet in a wall recess;
- form C: in a cabinet for surface mounting.
4.3 Hose support
4.3.1 General
The hose support shall be one of the following types:
- type 1: rotating reel;
- type 2: cradle with the hose double coiled;
- type 3: hose basket with the hose flaked.
4.3.2 Type 1
The reel shall rotate around a spindle so that the hose can be withdrawn freely. The inside drum shall have a
minimum diameter of not less than 70 mm and shall have a slit not less than 20 mm wide across the full
diameter of the drum into which the folded hose is located.
4.3.3 Type 1 and 3
Type 1 and 3 supports if fixed to the cabinet shall allow a swing to a position at 90 to the plane of the back of
the cabinet. The turning axis shall be vertical.
5 Hose and hose assemblies
5.1 General
The hose shall be lay-flat and conform to EN 14540.
The notified body can determine the conformity to EN 14540 by either a certificate or a test report of an
accredited or notified body.
5.2 Hose bore
The nominal diameter shall not exceed 52 mm.
5.3 Maximum length
The nominal length of the hose shall not exceed 20 m, except where, for certain specific applications,
regulations permit greater lengths.
5.4 Couplings
5.4.1 General
Couplings shall comply with national standards of the country in which the equipment is to be installed.
NOTE Local authority regulations of the country may apply for couplings.
5.4.2 Coupling bindings
The coupling shall be bound to the hose by means of an even pressure over the complete perimeter of the
hose against the coupling shank.
6 Shut-off nozzle
6.1 General
The hose shall terminate in a shut-off nozzle, which shall give the following control settings:
a) shut, and
b) spray; and
c) jet.
It is recommended that the sequence should be as above with the spray setting between the shut setting and
the jet setting.
If a hose system is used on electrical equipment the settings of the shut-off nozzle shall be according national
regulations.
Any spray discharge shall be in the form of either a sheet spray or a conical spray.
6.2 Resistance to impact
The nozzle shall not break or show any visible leakage when tested in accordance with E.1.
6.3 Operating torque
The torque necessary to operate the nozzle to each control setting at maximum working pressure shall not
exceed the appropriate value given in Table 1 when determined after testing in accordance with E.2.
Table 1 — Maximum operating torque of nozzle control
Control setting Maximum operating torque
Nm
Opening 7
Spray 7
Jet 7
Flow rate control 7
6.4 Marking of control settings
Rotary operated nozzles shall be marked to show the direction of closing and opening.
Lever operated nozzles shall be marked to show the settings for:
a) shut;
b) spray;
c) jet.
7 Inlet stop valve
a) A manual stop valve shall be fitted to the hose system.
NOTE It is normally appropriate for valves and valve connections and valve combinations to comply with national
standards of the country in which the equipment is to be installed.
b) The valve shall be screw down or other slow-opening type.
c) The inlet shall be threaded according to ISO 7-1.
d) The inlet and outlet shall form an angle of not less than 90° and not more than 135°.
e) The valve shall be closed by turning the handle in a clockwise direction and the direction of opening
shall be marked.
f) When tested in accordance with ISO 5208 for a maximum working pressure of 1,2 MPa the valve
shall conform to the appropriate requirements.
8 Cabinets
8.1 General
Cabinets shall be fitted with a door and can be fitted with a lock. Cabinet doors shall open to minim
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