SIST EN 12259-9:2019

Fixed firefighting systems - Components for sprinkler and water spray systems - Part 9: Deluge alarm valves

This part of EN 12259 specifies requirements, test methods, evaluation of conformity and marking of deluge
alarm valves with a nominal size range DN40 to DN250 intended to be used in fire protection water spray
systems.
This European Standard does not cover elastomeric sleeve type valves and does not include rules for design,
installation and maintenance of fire protection water spray systems.
Auxiliary components and attachments to deluge alarm valves are not covered by this part of EN 12259 with the
exception of automatic drain valves.

Ortsfeste Brandbekämpfungsanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen - Teil 9: Sprühwasserventile und Zubehör

Der vorliegende Teil von EN 12259 legt die Anforderungen, Prüfverfahren, die Konformitätsbewertung und Kennzeichnung von Sprühwasseralarmventilen mit Nennweiten im Bereich von DN40 bis DN250 fest, die für den Einsatz im Brandschutz vorgesehen sind.
Dieses Dokument ist für Ventile mit Klappen und Membranventile anwendbar, es ist nicht für Elastomer-Ringbalgventile anwendbar und schließt keine Regeln für die Konstruktion, den Einbau und die Instand-haltung von Brandschutz Sprühwasseranlagen ein.
Zusatz  und Befestigungsbauelemente für Sprühwasseralarmventile werden in diesem Teil von EN 12259 mit Ausnahme von automatischen Entwässerungsventilen nicht behandelt.

Installations fixes de lutte contre l'incendie - Organes constitutifs des systèmes sprinkleurs et à pulvérisation d'eau - Partie 9 : Systèmes de soupage d'alarme déluge

La présente partie de l’EN 12259 spécifie les exigences, les méthodes d’essai, l’évaluation de la conformité et le marquage des soupapes d’alarme déluge ayant une plage de dimensions nominales comprise entre DN40 et DN250, destinées à être utilisées en sécurité incendie.
Le présent document s’applique aux soupapes de type à clapet et de type à diaphragme ; il ne s’applique pas aux soupapes de type à manchon en élastomère et ne contient pas de règles relatives à la conception, à l’installation et à la maintenance des systèmes de protection contre l’incendie à pulvérisation d’eau.
À l’exception des soupapes de vidange automatique, la présente partie de l’EN 12259 ne traite pas des organes auxiliaires ni des fixations aux soupapes d’alarme déluge.

Vgrajene naprave za gašenje - Sestavni deli sprinklerskih sistemov in sistemov s pršečo vodo - 9. del: Ventili za poplavne sisteme

Ta del standarda EN 12259 določa zahteve, preskusne metode, vrednotenje skladnosti in oznake ventilov za poplavne sisteme z nominalno velikostjo od DN40 do DN250, ki so namenjeni za uporabo v sistemih s pršečo vodo za požarno zaščito. Ta evropski standard ne zajema elastomernih vrtljivih zasunov in ne vključuje pravil za projektiranje, namestitev in vzdrževanje sistemov s pršečo vodo za požarno zaščito. Ta del standarda EN 12259 ne zajema dodatnih sestavnih delov ali priključkov na ventile za poplavne sisteme, z izjemo samodejnih drenažnih ventilov.

General Information

• Status: Published
• Public Enquiry End Date: 29-Mar-2016
• Publication Date: 29-May-2019
• ICS: 13.220.10 - Fire-fighting
• ICS: 23.060.01 - Valves in general
• Technical Committee: POZ - Požarna varnost
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-May-2019
• Due Date: 27-Jul-2019
• Completion Date: 30-May-2019
• 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
• 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
• Mandate: M/139 - Addendum to mandates M/100, M/106, M/109, M/110 and M/125 in the field of construction products
• Ref Project: EN 12259-9:2019 - Fixed firefighting systems - Components for sprinkler and water spray systems - Part 9: Deluge alarm valves

Overview

EN 12259-9:2019 (CEN) is the European standard that defines requirements, test methods, conformity assessment and marking for deluge alarm valves used in fixed firefighting systems and water spray systems. It applies to deluge alarm valves with a nominal size range DN40 to DN250 and covers both clapper and diaphragm type sealing assemblies. The standard does not cover elastomeric sleeve type valves, auxiliary attachments (except automatic drain valves), or rules for design, installation and maintenance of systems.

Key topics and technical requirements

EN 12259-9:2019 sets out comprehensive product and testing requirements including:

• Product characteristics
  • Operational reliability (working pressure, range of operation, hydraulic pressure loss)
  • Durability (endurance, resistance to ageing, corrosion and wear)
  • Provision of access for maintenance, manual and automatic drains
• Type testing and performance tests
  • Flow tests, hydraulic friction loss, automatic drain operation
  • Fire exposure and strength tests for body and cover
  • Sealing assembly tests: fatigue, anti-reseating, differential pressure
  • Endurance, leakage resistance and salt mist (corrosion) testing
• Assessment & conformity
  • Type testing, factory production control (FPC), AVCP (Assessment and Verification of Constancy of Performance)
  • Marking, labelling and packaging requirements
• Documentation
  • Required instructions for installation and operation (note: does not give design/installation rules)
• Scope limitations
  • Applies only to DN40–DN250 deluge alarm valves; excludes elastomeric sleeve valves and most auxiliary components

Applications and who uses this standard

EN 12259-9:2019 is used across the fire protection supply chain where compliance, safety and consistent performance are required:

• Manufacturers - design, test and certify deluge alarm valves to meet European market requirements
• Test laboratories & certification bodies - perform type tests, AVCP and FPC assessments
• Specifiers and engineers - select compliant deluge valves for water spray and deluge systems
• Authorities having jurisdiction (AHJs) and procurement teams - verify conformity and product marking
• Maintenance planners - reference product documentation and drain/access requirements (installation/maintenance practices follow other standards)

Related standards

EN 12259 is a multi-part series on components for sprinkler and water spray systems. Relevant parts include:

• EN 12259-1 (Sprinklers)
• EN 12259-2/3/4/5 (Wet/dry alarm valves, water motor alarms, flow detectors)
• EN 12259-9 (Deluge alarm valves) - this part (Other parts in the EN 12259 series cover pipe couplings, hangers, pressure switches, pump sets, etc.)

Keywords: EN 12259-9:2019, deluge alarm valves, fixed firefighting systems, water spray systems, deluge system, DN40–DN250, CEN, test methods, conformity, clapper valve, diaphragm valve.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2019
Vgrajene naprave za gašenje - Sestavni deli sprinklerskih sistemov in sistemov s
pršečo vodo - 9. del: Ventili za poplavne sisteme
Fixed firefighting systems - Components for sprinkler and water spray systems - Part 9:
Deluge alarm valves
Ortsfeste Brandbekämpfungsanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen -
Teil 9: Sprühwasserventile und Zubehör
Installations fixes de lutte contre l'incendie - Organes constitutifs des systèmes
sprinkleurs et à pulvérisation d'eau - Partie 9 : Systèmes de soupage d'alarme déluge
Ta slovenski standard je istoveten z: EN 12259-9:2019
ICS:
13.220.10 Gašenje požara Fire-fighting
23.060.01 Ventili na splošno Valves in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12259-9
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2019
EUROPÄISCHE NORM
ICS 13.220.20
English Version
Fixed firefighting systems - Components for sprinkler and
water spray systems - Part 9: Deluge alarm valves
Installations fixes de lutte contre l'incendie - Organes Ortsfeste Brandbekämpfungsanlagen - Bauteile für
constitutifs des systèmes sprinkleurs et à pulvérisation Sprinkler- und Sprühwasseranlagen - Teil 9:
d'eau - Partie 9 : Systèmes de soupape d'alarme déluge Sprühwasserventile und Zubehör
This European Standard was approved by CEN on 1 March 2019.

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 CEN-CENELEC 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12259-9:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Product characteristics . 8
4.1 Operational reliability . 8
4.1.1 Working pressure . 8
4.1.2 Range of operation . 8
4.1.3 Pressure loss due to hydraulic friction loss . 10
4.1.4 Operational reliability of moving parts . 10
4.1.5 Avoidance of error in cover plate installation . 14
4.1.6 Provision of access to sealing assembly for maintenance . 14
4.1.7 Provision of manual drain connection . 14
4.1.8 Provision of automatic drain to prevent water columns . 15
4.2 Durability . 15
4.2.1 Endurance . 15
4.2.2 Resistance to ageing of non-metallic components (excluding gaskets, diaphragms
and seals) . 15
4.2.3 Resistance of springs and diaphragms to cyclic operations . 15
4.2.4 Resistance to deterioration of body, fasteners and covers . 15
4.2.5 Resistance to deterioration for seating and bearing surfaces . 16
4.2.6 Resistance to adhesion for sealing assembly and diaphragm elements . 16
4.3 Additional requirements . 16
4.3.1 Nominal size . 16
4.3.2 Connections . 16
5 Testing, assessment and sampling methods . 17
6 Assessment and verification of constancy of performance - AVCP . 17
6.1 General . 17
6.2 Type testing . 17
6.2.1 General . 17
6.2.2 Test samples, testing and compliance criteria . 18
6.2.3 Test reports . 20
6.2.4 Shared other party results . 20
6.3 Factory production control (FPC) . 20
6.3.1 General . 20
6.3.2 Requirements . 21
6.3.3 Product specific requirements . 23
6.3.4 Initial inspection of factory and of FPC . 23
6.3.5 Continuing surveillance of FPC . 24
6.3.6 Procedure for modifications . 24
6.3.7 Pre-production products (e.g. prototypes) . 24
7 Marking, labelling and packaging . 25
7.1 General . 25
7.2 Deluge alarm valve . 26
8 Instructions for installation and operation . 26
Annex A (normative) Fire exposure test for body and cover . 27
Annex B (normative) Strength test for body and cover . 29
Annex C (normative) Flow tests for deluge alarm valves . 30
C.1 Automatic drain valve operation . 30
C.2 Flow through open drain . 30
C.3 Hydraulic friction loss test . 30
Annex D (normative) Sealing assembly tests . 32
D.1 Fatigue test for springs and diaphragms . 32
D.2 Anti-reseating test . 32
D.3 Differential pressure ratio test . 32
Annex E (normative) Performance tests . 34
E.1 Resistance of body and sealing assembly to leakage and deformation . 34
E.2 Operational characteristics of a deluge alarm valve . 34
Annex F (normative) Resistance to ageing test for non-metallic components (excluding
diaphragms, gaskets and seals) . 36
F.1 Air oven ageing for components normally exposed to air when in the ready
condition . 36
F.2 Warm water ageing for components normally exposed to water when in the ready
condition . 36
Annex G (normative) Leakage resistance test . 37
Annex H (normative) Test for sealing assembly elements - Resistance to adhesion . 38
Annex I (normative) Endurance test - Procedure . 39
Annex J (normative) Salt mist corrosion test . 40
J.1 Reagents . 40
J.2 Apparatus . 40
J.3 Procedure . 40
Annex K (informative) Typical testing schedule and example of test specimen number of
deluge alarm valves . 41
Bibliography . 42

European foreword
This document (EN 12259-9:2019) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting 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 October 2019 and conflicting national standards shall
be withdrawn at the latest by January 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
EN 12259, Fixed firefighting systems - Components for sprinkler and water spray systems, consists of the
following parts:
— 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);
— Part 7: Pipe hangers (in preparation);
— Part 8: Pressure switches (in preparation);
— Part 9: Deluge alarm valves;
— Part 10: Multiple controls (in preparation);
— Part 11: Medium and high velocity water sprayers (in preparation);
— Part 12: Pump sets (in preparation);
— Part 14: Sprinklers for residential applications (in preparation).
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This part of EN 12259 specifies requirements, test methods, evaluation of conformity and marking of
deluge alarm valves with a nominal size range DN40 to DN250 intended to be used for fire safety.
This document is applicable to clapper type and diaphragm type valves; it is not applicable to
elastomeric sleeve type valves and does not include rules for design, installation and maintenance of
fire protection water spray systems.
Auxiliary components and attachments to deluge alarm valves are not covered by this part of EN 12259
with the exception of automatic drain valves.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 898-1:2013, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1:
Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-
1:2013)
EN ISO 898-2:2012, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2:
Nuts with specified property classes — Coarse thread and fine pitch thread (ISO 898-2:2012)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
alarm device
mechanical or electrical device to sound an alarm on operation of the deluge alarm valve
3.2
automatic drain (valve)
device, usually remaining open, which automatically drains water from the deluge alarm valve
3.3
clapper
type of sealing assembly
3.4
deluge system
automatic fire protection system using a deluge alarm valve assembly, which is operated by auxiliary
means to admit water into a system of sprayers
3.5
deluge alarm valve
water supply control valve intended to be operated by an auxiliary means to admit water into a system
of piping with open sprayers
Note 1 to entry: The auxiliary means of operating a deluge alarm valve may be mechanical, electrical, hydraulic,
pneumatic, thermal, manual or a combination of these.
3.6
differential pressure
difference between pressure measurements taken upstream and downstream of a deluge valve,
corrected for the pressure caused by elevation between the measurement points
3.7
diaphragm
type of sealing assembly
3.8
dry pilot actuator
differential type valve which permits the operation of a hydraulically operated deluge alarm valve upon
loss of pneumatic pressure from a dry pilot line
3.9
dry pilot line
pneumatic detection and actuation piping system fitted with heat responsive devices, usually
sprinklers, which, when subjected to an abnormal source of heat, operate to release pressure from the
piping system and dry pilot actuator, causing the automatic operation of a deluge alarm valve
3.10
pressure-loss operated deluge alarm valve
water supply control valve, maintained in the set condition by pressure (hydraulic/pneumatic) that
holds the sealing assembly closed or acts against a diaphragm or piston that holds the sealing assembly
closed
Note 1 to entry: A change in pressure against the diaphragm or piston allows the valve to open.
3.11
maximum design flow
maximum flow rate at which the deluge alarm valve is intended to operate
3.12
minimum service pressure
lowest static water pressure required at the inlet to the deluge alarm valve in the ready condition
3.13
nominal working pressure
maximum service pressure at which the deluge alarm valve is intended to operate
3.14
priming water
water to be provided at the outlet of the valve in the ready condition
3.15
supply-pressure operated deluge alarm valve
water supply control valve, maintained in the set position by a spring or other means and hydraulically
operated by the application of supply pressure to an auxiliary diaphragm or piston
3.16
ready (set) condition
state of the deluge alarm valve, with sealing assembly in the set position with the service pressure
applied
3.17
reseating prevention
avoidance of the sealing assembly returning to the closed position
3.18
resetting (valve)
returning of the valve to the ready (set) condition
3.19
sealing assembly
main movable sealing element of the deluge alarm valve
3.20
sealing assembly seat
main fixed sealing element of the deluge alarm valve
3.21
service pressure
static water pressure at the inlet to the deluge alarm valve in the ready condition
3.22
trim
external equipment and pipework, excluding the main installation pipework, fitted to the deluge alarm
valve assembly, as specified by the supplier
3.23
trip point
point at which the deluge alarm valve operates, admitting water into the deluge system piping,
measured in terms of the pilot line pressure and service pressure and expressed as a ratio
3.24
water motor alarm
hydraulically actuated alarm device (see 3.1) fitted to the deluge alarm valve to provide a local audible
alarm when the deluge system operates
3.25
wet pilot line
hydraulic detection and actuation piping system fitted with heat responsive devices, usually automatic
sprinklers, which, when subjected to an abnormal source of heat, operate to release pressure from the
piping system, causing the automatic operation of a deluge alarm valve
4 Product characteristics
4.1 Operational reliability
4.1.1 Working pressure
4.1.1.1 The manufacturer shall specify the nominal working pressure.
The deluge alarm valve shall meet the requirements of 4.1.1.2 to 4.1.1.5.
The performance shall be expressed as the working pressure in bar.
4.1.1.2 The deluge alarm valve with the sealing assembly open shall withstand, without rupture, an
internal hydrostatic pressure of four times the nominal working pressure, when tested in accordance
with Annex B.
4.1.1.3 If the test described in Annex B is not performed on standard production fasteners, the
supplier shall provide documentation showing, by calculation, that the normal design load of any
standard production fastener, excluding the force required to compress the gasket, does not exceed the
minimum tensile strength specified in standards EN ISO 898-1:2013 and EN ISO 898-2:2012 or other
appropriate standards for materials not covered by these standards, when the deluge alarm valve is
pressurized to four times the nominal working pressure. The area of the application of pressure shall be
calculated as follows:
— if a full-face gasket is used, the area of force application is that extending out to line defined by the
inner edge of the bolts;
— if a toroidal sealing ring or ring gasket is used, the area of force application is that extending out to
the centre line of the toroidal sealing ring or ring gasket.
4.1.1.4 The deluge alarm valve with the sealing assembly open shall withstand, without leakage,
permanent distortion or rupture, an internal hydrostatic pressure of not less than twice the nominal
working pressure when tested in accordance with E.1.
4.1.1.5 The deluge alarm valve shall withstand, without leakage, permanent distortion or structural
failure, an internal hydrostatic pressure of not less than twice the nominal working pressure applied at
the upstream end with the sealing assembly closed and the pilot line pressurized to twice the supplier's
recommended pressure when tested in accordance with E.1.
The performance shall be expressed as the nominal working pressure in bar.
4.1.2 Range of operation
4.1.2.1 The supplier shall specify
— the minimum service pressure, and
— the maximum design flow.
The deluge alarm valve shall meet the requirements of 4.1.2.2 to 4.1.2.12
The performance shall be expressed as the minimum service pressure in bar, the maximum design flow
in l/min. and as having met the requirements of each clause.
4.1.2.2 There shall be no sign of damage to the sealing elements of the deluge alarm valve or any
permanent twist, bend or fracture of any parts after testing in accordance with E.2.
4.1.2.3 Deluge alarm valves, equipped with a trim in accordance with the manufacturer’s
instructions, shall not be capable of resetting after release without the need of manual intervention.
Deluge alarm valves shall be provided with a means which prevents the valve from reseating until
manually reset where:
a) the ratio of service pressure to valve outlet pressure, at the point where the tripped valve reopens
exceeds 1,16 to 1, for service pressures between the minimum service pressure and the nominal
working pressure, or
b) the installation drain is located upstream of the sealing assembly.
Deluge alarm valves having a latch for the prevention of reseating shall be tested in accordance with D.2
and E.2, without sustaining permanent distortion, cracks, delamination or other signs of failure.
Valves which are not equipped with a device which prevents the valve from reseating, and for which the
ratio of service pressure to valve outlet pressure at the point where the tripped valves reopens is
unknown or estimated, shall be tested in accordance with D.3 to determine the ratio of service pressure
to valve outlet pressure.
The supplier may provide details of the deluge alarm valve estimated ratio of service pressure to valve
outlet pressure at the point where the tripped valve reopens by submitting test evidence or
calculations.
4.1.2.4 There shall be no leakage of water when the deluge alarm valve assembly is tested in
accordance with E.2.
Valve sealing surfaces should withstand ordinary wear and tear, rough usage, compression stresses and
damage due to pipe scale or foreign matter carried by the water.
4.1.2.5 When tested in accordance with E.2.1 and E.2.2 the deluge alarm valve assembly shall
operate correctly in accordance with the supplier's performance details, without adjustment or damage,
at service pressures within the range of the minimum service pressure to the nominal working
pressure.
The supplier should provide performance details that should include the deluge alarm valve actuator
operating pressure and K-factors. Details of the pilot line height limitations above the deluge alarm
valve should be provided for wet pilot line operated deluge alarm valves.
4.1.2.6 A deluge alarm valve in the ready condition shall withstand without opening permanently a
water supply pressure failure, where the water supply pressure drops from the nominal working
pressure to 0 bar and remains at 0 bar for a period of 1 h and then rises to the nominal working
pressure at the rate of not less than 5 bar/s, when tested in accordance with E.2.3.
4.1.2.7 A pressure-loss operated deluge alarm valve shall operate before the pressure at the
actuating mechanism reaches the minimum specified by the supplier.
4.1.2.8 A deluge alarm valve operated by supply pressure shall operate when the pressure at the
actuating mechanism in the valve is:
— not more than two thirds the pressure requirements stated by the supplier and
— not more than half the supply pressure
within the range of the minimum service pressure specified by the supplier to the nominal working
pressure.
4.1.2.9 At all specified flow velocities and associated pressure ranges, an alarm line pressure in
excess of 0,5 bar shall be ensured when tested in accordance with Annex I.
4.1.2.10 When tested in accordance with E.2.1 and E.2.2, deluge alarm valve line connections shall
conform to the following:
a) the valve shall provide a pressure of not less than 0,5 bar at the alarm port at the minimum service
pressure while actuating relevant water motor alarms and electric alarm devices;
b) the piping between the deluge alarm valve or any alarm shut-off valve, and the alarm devices shall
drain automatically after each operation.
4.1.2.11 When tested in accordance with E.2, the deluge alarm valve shall actuate associated
mechanical and electrical alarm devices.
4.1.2.12 There shall be no leakage across the sealing assembly of deluge alarm valve in the ready
condition or into the alarm port when tested in accordance with Annex G.
4.1.3 Pressure loss due to hydraulic friction loss
The supplier shall specify the pressure loss in bar at a velocity of 5 m/s, based on the nominal diameter
of the valve.
The pressure loss across the deluge alarm valve shall not be more than 0,5 bar and within ±10 % of the
supplier’s specification when tested in accordance with C.3.
The performance shall be expressed as the pressure loss in bar at a velocity of 5 m/s, based on the
nominal diameter of the valve.
4.1.4 Operational reliability of moving parts
NOTE Clearances are necessary between moving parts and between moving and stationary parts so that
corrosion or deposits of foreign matter within an assembly will not render the deluge alarm valve sluggish in
action or inoperative.
4.1.4.1 Clapper type valves shall conform with 4.1.4.2 to 4.1.4.7 and diaphragm type valves shall
conform with 4.1.4.3, 4.1.4.4, 4.1.4.7 and 4.1.4.8.
The performance shall be expressed as the description “Requirements are met”.
4.1.4.2 The radial clearance (see Figure 1 a) between the sealing assembly, including the hinge boss
areas, and the inside walls of the body (excluding moving catches and latching mechanisms) in every
position except the wide open position shall be not less than 12 mm if the body is cast iron or 6 mm if
the body and sealing assembly are of non-ferrous metal, stainless steel, titanium or materials having at
least equivalent physical, mechanical and corrosion resistant properties.
4.1.4.3 There shall be diametrical clearance (see Figure 1 b) between the inner edge of the seat ring
and the metal parts of the sealing assembly when in the close position, excluding any latching
mechanisms, as follows:
a) for sealing assemblies of bronze, brass, stainless steel or titanium or materials having equivalent
physical and mechanical properties, the diametrical clearance shall not be less than 0,7 mm;
b) for sealing assemblies of other materials, the diametrical clearance shall not be less than 3,0 mm.
4.1.4.4 Any space in which the sealing assembly may trap debris below the valve seat shall be not
less than 3 mm deep.
4.1.4.5 Valves with a diametrical clearance (see Figure 1 b) between any pins and their bearings
less than 0,125 mm shall operate correctly when tested in accordance with E.2 and E.1, following
exposure to a salt mist corrosion test in accordance with Annex J.
4.1.4.6 The axial clearance (L2-L1, see Figure 1 c) between any clapper hinge and the adjacent
deluge alarm valve body bearing surfaces shall not be less than the value in Table 1.
Where applicable, as indicated in Table 1, a means, employing bronze, brass, stainless steel, titanium or
materials having at least equivalent physical, mechanical and corrosion resistant properties shall be
provided to maintain dimension A (see Figure 1 c) at not less than the appropriate value in Table 1.
NOTE Shoulder or projecting straight bushings, projecting hinge pin bearings, or spacers are typically
employed as a means of maintaining dimension A.
Table 1 — Axial clearance (L – L ) and dimension ‘A’ values for differing body and sealing
2 1
assembly construction materials
Body and sealing Axial clearance Dimension A Additional
assembly materials of (L -L ) testing
2 1
(see Figure 1 c)
construction requirements
(see Figure 1 c)
mm
mm
Body and sealing assembly ≥ 0,25mm Not applicable None
made of bronze, brass,
stainless steel, titanium or
materials having at least
equivalent physical,
mechanical and corrosion
resistant properties
Bodies and or sealing ≥ 0,25 mm ≥ 3,0 mm None
assemblies made of
a
≥ 1,50 mm ≥ 2,0 mm See footnote
materials other than above
(for example, cast iron)
a
The valve shall operate correctly when tested in accordance with E.2 and E.1 following exposure to a
salt mist corrosion test in accordance with Annex J.

a) Radial clearance = R - R b) Diametrical clearance = D - D
2 1 2 1
c) Total axial clearance = L – L ;
2 1
-
ll
Dimension A =
Key
1 valve body
2 pin
3 bushing (typical arrangement depicted)
4 sealing assembly (clapper)
Figure 1 — Clearances
4.1.4.7 Any reciprocating guide components in the main valve body, operation of which is essential
to allow the deluge alarm valve to open, shall have minimum diametrical clearance of not less than
0,7 mm in that portion over which the moving component enters the fixed component and of not less
than 0,1 mm in that portion of the moving component continuously in contact with the fixed component
in the ready condition.
4.1.4.8
a) The clearance (see Figure 1 a) between a diaphragm-sealing assembly and the inside walls of an
cast iron or cast steel body shall not be less than 9,0 mm for every position of the sealing assembly
except the closed position. This clearance shall not be less than 4,0 mm for valves employing for
body and the metal parts of the diaphragm-sealing assembly bronze, brass, stainless steel, titanium
or corrosion-protected metal.
b) Where corrosion protected metal parts are used, the parts shall show no visible signs of
deterioration of the coating such as blistering, delamination, flaking or increased resistance to
movement when tested in accordance with Annex J.
4.1.5 Avoidance of error in cover plate installation
It shall not be possible to assemble the deluge alarm valve cover plate (if fitted) in a position which
affects the operation of the valve so that it does not conform to this European Standard, in particular
indication of flow direction.
The performance shall be expressed as the description “Requirements are met”.
4.1.6 Provision of access to sealing assembly for maintenance
Means shall be provided for access to working parts and removal of the sealing assembly.
The design of any element that may normally be disassembled during servicing shall be such that it
cannot be reassembled incorrectly without there being an external visual indication when the deluge
alarm valve is returned to service.
With the exception of the valve seat, all parts intended for field replacement should be capable of being
disassembled and reassembled with tools normally employed by the trade.
The performance shall be expressed as the description “Requirements are met”.
4.1.7 Provision of manual drain connection
4.1.7.1 The deluge alarm valve shall meet the requirements of 4.1.7.2 to 4.1.7.3.
The performance shall be expressed as the nominal size of the manual drain connection.
4.1.7.2 The deluge alarm valve shall be provided with a connection to drain water from the valve
body downstream of the sealing assembly when the valve is installed in any position specified by the
supplier. To prevent blockage of the drain and minimize drainage time, the minimum nominal drain size
shall be DN20.
4.1.7.3 Where a body drain is to be used for draining the installation pipework then in order to
prevent blockage of the drain and minimize drainage time, the minimum nominal drain size shall be as
specified in Table 2.
Table 2 — Valve body minimum manual drain size connections
Nominal size of Minimum drain
valve connection
DN DN
40 20
50 20
65 32
80 32
100 32
125 50
150 50
200 50
250 50
4.1.8 Provision of automatic drain to prevent water columns
4.1.8.1 The deluge alarm valve shall meet the requirements of 4.1.8.2 to 4.1.8.4.
−1 -1/2
The performance shall be expressed as the K-factor [l min bar ] and the type (i.e. “open” or
“automatic”) of the drain.
−1 -1/2
4.1.8.2 An automatic or open drain with a K-factor of not less than 1 l min bar shall be provided
in addition to the valve body manual drain on the downstream side of the deluge alarm valve to prevent
water columning.
4.1.8.3 Automatic drain valves shall close at a pressure of not more than 0,35 bar with a flow rate
through the automatic drain valve just prior to closure of not less than 0,10 l/s and not more than
0,63 l/s when tested in accordance with C.1.
4.1.8.4 The flow through an open drain, used for venting or alarm line drainage shall not exceed
0,63 l/s at any service pressure up to the nominal working pressure when tested in accordance with
C.2.
4.2 Durability
4.2.1 Endurance
The deluge alarm valve and its moving parts shall show no sign of distortion, cracks, delamination,
loosening, displacement or other failure when tested in accordance with Annex I.
The performance shall be expressed as the description “No damage”.
4.2.2 Resistance to ageing of non-metallic components (excluding gaskets, diaphragms and
seals)
After ageing non-metallic components in accordance with Annex F, there shall be no cracking of any
component and the deluge alarm valve shall meet the requirements of 4.1.2.12 and 4.2.1 when tested in
accordance with Annex G, and Annex I.
The performance shall be expressed as the description “No damage”.
4.2.3 Resistance of springs and diaphragms to cyclic operations
Springs and diaphragms shall not fracture or rupture during 5 000 cycles of normal operation when
tested in accordance with D.1.
The performance shall be expressed as the description “No damage”.
4.2.4 Resistance to deterioration of body, fasteners and covers
4.2.4.1 The deluge alarm valve shall meet the requirements of 4.2.4.2 to 4.2.4.4.
The performance shall be expressed as the description “Requirements are met”.
4.2.4.2 The body and any cover shall be made from cast iron, bronze, brass, stainless steel or
titanium or other material which has been proven to be equally suitable (regarding e.g. corrosion
resistance, compatibility of materials (combination with certain piping materials), ageing resistance, UV
resistance, resistance to expansion of piping due to temperature changes, resistance against additives).
4.2.4.3 Cover fasteners shall be made from steel, stainless steel or titanium or other material which
has been proven to be equally suitable (regarding e.g. corrosion resistance, ageing resistance, UV
resistance, wear resistance).
4.2.4.4 If non-metallic materials (other than for gaskets, pipe seals and unexposed plastic bushings
and inserts), or metals with a melting point of less than 800 °C (other than for gaskets, pipe seals and
unexposed plastic bushings and inserts), form part of the deluge alarm valve body or cover, the deluge
alarm valve shall conform to 4.1.1.4 and the sealing assembly shall open freely and fully when tested in
accordance with Annex A.
4.2.5 Resistance to deterioration for seating and bearing surfaces
4.2.5.1 The deluge alarm valve shall meet the requirements of 4.2.5.2 to 4.2.5.3.
The performance shall be expressed as the description “Requirements are met”.
4.2.5.2 Seating surfaces shall
— be made from bronze, brass, stainless steel or titanium, or
— be made from other material which has been proven to be equally suitable (regarding e.g. corrosion
resistance, pressure resistance, ageing resistance, resistance against additives), or
— be coated with a material which has been proven to be equally suitable (regarding e.g. corrosion
resistance, pressure resistance, ageing resistance, resistance against additives) and which shall not
delaminate or blister when tested in accordance with Annex J.
4.2.5.3 The bearing surfaces of contacting parts that rotate or slide relative to each other shall be
made of bronze, brass, titanium or stainless steel or other material which has been proven to be equally
suitable (regarding e.g. corrosion resistance, pressure resistance, ageing resistance, resistance against
additives).
NOTE Bushings or inserts can be used.
4.2.6 Resistance to adhesion for sealing assembly and diaphragm elements
A seal of elastomer or other resilient materials shall not adhere to the mating surface when tested in
accordance with H.1.
The performance shall be expressed as the description “Requirements are met”.
4.3 Additional requirements
4.3.1 Nominal size
The nominal size shall be expressed as the nominal diameter of the inlet and outlet connections, i.e. the
pipe size for which the connections are intended.
The cross-sectional area of the waterway through the sealing assembly seat area may be less than the
inlet connection.
4.3.2 Connections
4.3.2.1 The dimensions of all connections to the valve body shall be specified.
4.3.2.2 Where appropriate a connection shall be provided for the pilot line system.
4.3.2.3 If priming water is required for sealing or damping purposes, external means shall be
provided to allow priming water to enter.
5 Testing, assessment and sampling methods
The testing, assessment and sampling methods are given in chapter four by references to annexes of
this standard.
6 Assessment and verification of constancy of performance - AVCP
6.1 General
The compliance of deluge alarm valves with the requirements of this standard and with the
performances declared by the manufacturer in the Declaration of Performance (DOP) shall be
demonstrated by:
— determination of the product type;
— factory production control by the manufacturer, including product assessment.
The manufacturer shall always retain the overall control and shall have the necessary means to take
responsibility for the conformity of the product with its declared performance(s).
6.2 Type testing
6.2.1 General
All performances related to characteristics included in this standard shall be determined when the
manufacturer intends to declare the respective performances unless the standard gives provisions for
declaring them without performing tests (e.g. use of previously existing data, CWFT and conventionally
accepted performance).
Assessment previously performed in accordance with the provisions of this standard, may be taken into
account provided that they were made to the same or a more rigorous test method, under the same
AVCP system on the same product or products of similar design, construction and functionality, such
that the results are applicable to the product in question.
NOTE 1 Same AVCP system means testing by an independent third party under the responsibility of a notified
product certification body.
For the purposes of assessment, the manufacturer's products may be grouped into families, where it is
considered that the results for one or more characteristics from any one product within the family are
representative for that same characteristics for all products within that same family.
NOTE 2 Products may be grouped in different families for different characteristics.
Reference to the assessment method standards should be made to allow the selection of a suitable
representative sample.
In addition, the determination of the product type shall be performed for all characteristics included in
the standard for which the manufacturer declares the performance:
— at the beginning of the production of a new or modified deluge alarm valve (unless a member of the
same product range), or
— at the beginning of a new or modified method of production (where this may affect the stated
properties), or
— they shall be repeated for the appr
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