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

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.
NOTE  All pressures are gauge pressures and are expressed in megapascals. 1 MPa = 10 bar.

Ortfeste Löschanlagen - Wandhydranten - Teil 2: Wandhydranten mit Flachschlauch

Diese Europäische Norm legt Anforderungen und Prüfverfahren für Bauart und Ausführung von Wandhydraten mit Flachschlauch zum Einbau in Gebäuden oder anderen baulichen Anlagen fest, die fest mit der Wasserzufuhr verbunden und zum Gebrauch durch jede Person geeignet sind. Di Anforderungen dieser Norm dürfen in der Regel auch für andere Anwendungen zugrunde gelegt werden, zum Beispiel im Schiffbau oder bei aggressivem Umfeld, in diesen Fällen können jedoch zusätzliche Anforderungen notwendig sein. Im Sinne der Zweckmäßigkeit für die Anwendung bei Konformitätsprüfungen sind die normativen Anhänge dieser Norm so angelegt, dass Anhang A die Reihenfolge der Konformitätsprüfungen angibt, während die Anhänge B, C, D und E die Prüfungen in der exakten Reihenfolge ihrer Durchführung enthalten.
Ammerkung: alle Drücke sind Manometerdrücke und werden in Megapascal angegeben 1 MPa=10bar.

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

Domaine d'application
La présente Norme européenne prescrit les exigences et méthodes d'essais de fabrication et de performance des postes d'eau muraux équipés de tuyaux plats, destinés à être installés dans des immeubles et autres bâtiments industriels, raccordés en permanence à une alimentation en eau, pour être utilisés par les occupants.
Ses exigences peuvent concerner d'autres cas, par exemple les applications en atmosphères marines ou corrosives ; dans ces cas, des exigences supplémentaires peuvent s'avérer nécessaires.
Pour la bonne conformité aux essais, les annexes normatives de cette norme sont aménagées de telle sorte que l'annexe A donne les méthodes d'évaluation de la conformité et les annexes B, C, D et E mentionnent les essais dans l'ordre indiqué par cette annexe A.
NOTE   Toutes les pressions sont des pressions manométriques exprimées en mégapascals : 1 MPa = 10 bar.

Vgrajeni gasilni sistemi - Cevni sistemi - 2. del: Cevni koluti s plosko cevjo

General Information

Status
Withdrawn
Publication Date
10-Apr-2001
Withdrawal Date
17-Apr-2012
Current Stage
9960 - Withdrawal effective - Withdrawal
Due Date
18-Apr-2012
Completion Date
18-Apr-2012

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 671-2:2001
01-oktober-2001
1DGRPHãþD
SIST EN 671-2:1997
Vgrajeni gasilni sistemi - Cevni sistemi - 2. del: Cevni koluti s plosko cevjo

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

Ortfeste 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: EN 671-2:2001
ICS:
13.220.10 Gašenje požara Fire-fighting
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN 671-2:2001 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 671-2:2001
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SIST EN 671-2:2001
EUROPEAN STANDARD
EN 671-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2001
ICS 13.220.20 Supersedes EN 671-2:1994
English version
Fixed firefighting systems - Hose systems - Part 2: Hose
systems with lay-flat hose

Installations fixes de lutte contre l'incendie - Systèmes Ortfeste Löschanlagen - Wandhydranten - Teil 2:

équipés de tuyaux - Partie 2: Postes d'eau muraux équipés Wandhydranten mit Flachschlauch

de tuyaux plats
This European Standard was approved by CEN on 1 March 2001.

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. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the Management Centre or to any CEN member.

This European Standard exists 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, Czech Republic, Denmark, Finland, France, Germany, Greece,

Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 671-2:2001 E

worldwide for CEN national Members.
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SIST EN 671-2:2001
Page 2
EN 671-2:2001
Contents

Foreword......................................................................................................................................................................3

Introduction .................................................................................................................................................................4

1 Scope......................................................................................................................................................................4

2 Normative references............................................................................................................................................4

3 Terms and definitions ...........................................................................................................................................5

4 Designation ............................................................................................................................................................5

5 Hose and hose assemblies...................................................................................................................................6

6 Shut-off nozzle.......................................................................................................................................................6

7 Inlet stop valve.......................................................................................................................................................7

8 Cabinets..................................................................................................................................................................8

9 Materials .................................................................................................................................................................8

10 Hydraulic properties............................................................................................................................................9

11 Colour, symbols, marking and instructions ...................................................................................................10

12 Evaluation of conformity ..................................................................................................................................11

Annex A (normative) Schedule for initial type testing ..........................................................................................12

Annex B (normative) Test method for resistance to external corrosion.............................................................13

Annex C (normative) Ageing test for plastics materials .......................................................................................14

Annex D (normative) Test method for resistance to corrosion of waterways....................................................15

Annex E (normative) Test methods for nozzle.......................................................................................................16

Annex ZA (informative) Clauses of this European Standard addressing the essential

characteristics of EU Construction Products Directive........................................................................................20

Bibliography ..............................................................................................................................................................24

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SIST EN 671-2:2001
Page 3
EN 671-2:2001
Foreword

This European Standard has been prepared by Technical Committee CEN/TC 191 "Fixed firefighting system",

the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an identical

text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at

the latest by January 2003.
This European Standard replaces EN 671-2:1994.

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

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association and supports the essential requirements of EU Directive

89/106/EEC.

For relationship with EU Directives, see informative Annex ZA, which is an integral part of this standard.

Annexes A, B, C, D and E are normative.
This European Standard includes a bibliography.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,

Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,

Spain, Sweden, Switzerland and the United Kingdom.
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EN 671-2:2001
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.

NOTE All pressures are gauge pressures and are expressed in megapascals. 1 MPa = 10 bar.

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, Hose systems – Part 3: Maintenance of hose reels with semi-rigid hose and hose systems

with lay-flat hose.

prEN 1924-2:1995, Non-percolating layflat delivery hoses and hose assemblies for fire fighting purposes.

EN ISO 4892-2:1999, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc sources

(ISO 4892-2:1994).

ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions,

tolerances and designation.
ISO 9227:1990, Corrosion tests in artificial atmospheres; salt spray tests.
ISO 5208:1993, Industrial valves, pressure testing of valves.
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EN 671-2:2001
3 Terms and definitions

For the purposes of this European Standard, the following terms and definitions apply:

3.1
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
3.2
cabinet
box to protect the hose system against environmental or physical damage
3.3
hose support
device used to hold the hose
3.4
lay-flat hose
hose which is flat-sectioned except when it is internally pressurized
3.5
coupling
device used to connect the hose to the valve and to the shut-off nozzle
3.6
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;
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EN 671-2:2001
- 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 2 and type 3

Type 2 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. No deformation, which may harm the function of the hose

support, shall occur when tested in accordance with 9.2.2.
5 Hose and hose assemblies
5.1 General
The hose shall be lay-flat and conform to prEN 1924-2:1995.
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
The coupling shall be as specified by, or agreed with, the purchaser.

NOTE It is normally appropriate for couplings to comply with national standards of the country in which the

equipment is to be installed.
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/or
c) jet.

NOTE When both spray and jet are provided it is recommended that the sequence should be as above with

the spray setting between the shut setting and the jet setting.

Any spray discharge shall be in the form of either a sheet spray or a conical spray.

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SIST EN 671-2:2001
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EN 671-2:2001
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
Flowrate control 7
6.4 Marking of control settings

6.4.1 Rotary operated nozzles shall be marked to show the direction of closing and opening.

6.4.2 Lever operated nozzles shall be marked to show the settings for
a) shut; and
b) spray; and/or jet.
7 Inlet stop valve
7.1 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.
7.2 The valve shall be screwdown or other slow-opening type.
7.3 The inlet shall be threaded according to ISO 7-1:1994.
o o

7.4 The inlet and outlet shall form an angle of not less than 90 and not more than 135 .

7.5 The valve shall be closed by turning the handle in a clockwise direction and the direction of opening shall

be marked.

7.6 When tested in accordance with ISO 5208:1993 for a maximum working pressure of 1,2 MPa the valve

shall conform to the appropriate requirements of ISO 5208:1993.
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EN 671-2:2001
8 Cabinets
8.1 General

Cabinets shall be fitted with a door and may be fitted with a lock. Lockable cabinets shall be provided with an

emergency opening device, which may be protected only by transparent frangible material. The screwdown

valve shall be positioned in such a way that there is at least 35 mm free space around the external diameter of

the handwheel, when the valve is in any position from fully open to fully closed.

If the emergency opening is protected by a frangible glass front this shall be of the type which when broken

does not leave jagged or sharp edges which might cause injury when the emergency opening is operated.

Cabinets shall be free of sharp edges which might damage the equipment or cause injury.

Cabinets may also be used to contain other firefighting equipment, provided that the cabinet is of sufficient

size and the equipment does not interfere with the prompt use of the valve and hose. Cabinet doors shall

open to minimum 170 to allow the hose to be run out freely in any direction. For service in some climatic

conditions it may be necessary to provide the cabinet with suitable ventilating openings.

8.2 Opening device

An opening device shall be provided to allow periodical inspection and maintenance. The opening device shall

have provision for a security seal to be fitted.

NOTE The force necessary to open and secure the seal should be not less than 20 N and not more than

40 N, and the opening device should be reasonably difficult to operate to minimise misuse and theft.

8.3 Form C cabinets

Cabinets for form C shall have a hole or holes in the base to allow drainage of water.

9 Materials

NOTE 1 Where hose systems are connected to a public domestic water supply, the appropriate authority may

specify materials which are, or are not, acceptable to the authority.

NOTE 2 The advice of the manufacturer should be requested in cases of special corrosion risk.

9.1 Resistance to external corrosion

Any metal parts shall provide adequate protection when coated parts are tested in accordance with B.1 and

uncoated parts are tested in accordance with B.2.
9.2 Plastics materials
9.2.1 Components subjected to pressure

Nozzles made of plastics materials shall meet the requirements in 6.2 when tested in accordance with E.1

after the ageing test in accordance with Annex C.
9.2.2 Components not subjected to pressure

After the ageing test in accordance with Annex C, all hose supports made of plastics materials shall meet the

requirement in 4.3.3.
9.3 Resistance to corrosion of waterways

There shall be no significant corrosion defects and the mechanical operation of all working parts shall be

unimpaired when waterways are tested in accordance with Annex D.
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SIST EN 671-2:2001
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EN 671-2:2001
10 Hydraulic properties
10.1 Resistance to internal pressure
Hose assemblies shall be designed for the following pressures:
- maximum working pressure 1,2 Mpa;
- test pressure: 2,4 Mpa;
- minimum burst pressure: 4,2 Mpa.
10.2 Security of couplings

Hose assemblies shall not leak when tested to the test pressure in accordance with E.5.

10.3 Minimum flow rate

The flow rates in jet and spray settings shall be not less than the appropriate values given in Table 2 when the

hose system is tested in accordance with E.4.1.
Table 2 - Minimum flow rates and minimum k-coefficient according to pressure
Nozzle diameter or equivalent Minimum flow rate Q l/min K-coefficient
diameter, mm (see note)
P = 0,2 MPa P = 0,4 MPa P = 0,6 MPa
9 66 92 112 46
10 78 110 135 55
11 93 131 162 68
12 100 140 171 72
13 120 170 208 85

NOTE Flowrate Q at pressure P is related to the equation Q = K 10P , where Q is in litres/minute and P is in

megapascals
10.4 Effective throw range

The effective throw ranges of the discharges at a pressure 0,2 MPa when determined in accordance with

E.4.2 shall not be less than as follows:
- jet discharge 10 m;
- sheet spray discharge 6 m;
- conical spray discharge 3 m.
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