EN 12259-2:1999/A1:2001

SLOVENSKI STANDARD
01-oktober-2001
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Fixed firefighting systems - Components for sprinkler and water spray systems - Part 2:
Wet alarm valve assemblies
Ortsfeste Löschanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen - Teil 2:
Nassalarmventil mit Zubehör
Installations fixes de lutte contre l'incendie - Composants des systemes d'extinction du
type sprinkleur et a pulvérisation d'eau - Partie 2: Systemes de soupape d'alarme
hydraulique
Ta slovenski standard je istoveten z: EN 12259-2:1999/A1:2001
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 12259-2:1999/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2001
ICS 13.220.20
English version
Fixed firefighting systems - Components for sprinkler and water
spray systems - Part 2: Wet alarm valve assemblies
Installations fixes de lutte contre l'incendie - Composants Ortsfeste Löschanlagen - Bauteile für Sprinkler- und
des systèmes d'extinction du type sprinkleur et à Sprühwasseranlagen - Teil 2: Nassalarmventil mit Zubehör
pulvérisation d'eau - Partie 2: Systèmes de soupape
d'alarme hydraulique
This amendment A1 modifies the European Standard EN 12259-2:1999; it was approved by CEN on 20 January 2001.
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. 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 amendment 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 12259-2:1999/A1:2001 E
worldwide for CEN national Members.

Page 2
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 191 "Fixed fire fighting
systems", 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 September 2001, and conflicting national standards shall
be withdrawn at the latest by December 2002.
This European Standard 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).
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.
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard.
It forms one Part of EN 12259, covering components for automatic sprinkler systems and is included in a
series of European Standards planned to cover:
a) automatic sprinkler systems (EN 12259 & 12845)
b) Gaseous extinguishing systems (EN 12094 )
1)
c) powder systems (EN 12416)
d) explosion protection systems (EN 26 184)
e) foam systems (EN13565)
f) hydrant and hose reel systems (EN 671)
g) smoke and heat control systems (EN 12101)
h) water spray systems
EN 12259 has the general title “Fixed fire fighting systems - Components for sprinkler and water spray
systems” and will subdivided as follows:
Part 1: Sprinklers.
Part 2: Wet alarm valve assemblies
Part 3: Dry alarm valve assemblies
Part 4: Water motor alarms.
Part 5: Water flow detectors.
Part 6: Pipe couplings.
In preparation
Page 3
Part 7: Pipe hangers.
Part 8: Pressure switches.
Part 9: Deluge alarm valve assemblies.
Part 10 Multiple controls.
Part 11 Medium and high velocity water sprayers.
Part 12 Sprinkler pump sets.
Page 4
a) Radial clearance = R - R     b) Diametrical clearance = D - D
2 1 2 1
c) Total axial clearance = l - l ; clearance,
2 1
-
l l
Dimension
A =
Key
1 valve body
2 pin
3 bushings
4 sealing assembly
Figure 1 - Clearances
Page 5
8 Evaluation of conformity
8.1 General
The compliance of a wet alarm valve assembly with the requirements of this standard shall be
demonstrated by:
- initial type testing
- factory production control by the manufacturer.
8.2 Initial type testing
Initial type testing shall be performed on first application of this standard. Tests previously performed in
accordance with the provisions of this standard (same product, same characteristic, test method, sampling
method and system of attestation of conformity) may be taken into account. In addition, initial type testing
shall be performed at the beginning of the production of a product type or at the beginning of a new
method of production (where these may affect the stated properties).
All characteristics given in clause 4, and where appropriate clause 5, shall be subject to initial type testing.
8.3 Factory production control (FPC)
The supplier shall establish, document and maintain an FPC system to ensure that the products placed on
the market conform with the stated performance characteristics.
The FPC system shall consist of procedures, regular inspections and tests and/or assessments and the
use of the results to control raw and other incoming materials or components, equipment, the production
process and the product. It shall be sufficiently detailed to ensure that the conformity of the product is
apparent, ensuring detection of irregularities at the earliest possible stage.
An FPC system conforming with the requirements of the relevant part(s) of EN ISO 9000, and made
specific to the requirements of this standard, shall be considered to satisfy the above requirements.
The results of inspections, tests or assessments requiring action shall be recorded, as shall any action
taken. The
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