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PREDSTANDARD
januar 2005
Vgrajene naprave za gašenje – Sestavni deli sprinklerskih sistemov in
sistemov s pršečo vodo – 9. del: Ventili za poplavne sisteme
(istoveten prEN 12259-9:2004)
Fixed firefighting systems - Components for sprinkler and water spray systems -
Part 9: Deluge valve assemblies
ICS 13.220.10 Referenčna številka
OSIST prEN 12259-9:2005(en;fr;de)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD
DRAFT
prEN 12259-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2004
ICS
English version
Fixed firefighting systems - Components for sprinkler and water
spray systems - Part 9: Deluge valve assemblies
Installations fixes de lutte contre l'incendie - Organes Ortsfeste Brandbekämpfunsanlagen - Bauteile für
constitutifs des systèmes sprinkleurs et à pulvérisation Sprinkler- und Sprühwasseranlagen - Teil 9:
d'eau - Partie 9 : Blocs de soupape d'alarme déluge Sprühwasserventil und Zubehor
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, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12259-9:2004: E
worldwide for CEN national Members.
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prEN 12259-9:2004 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Deluge valve assembly construction and performance .6
5 Evaluation of conformity.13
6 Marking .17
7 Instructions for installation and operation .19
Annex A (normative) Fire exposure test for body and cover.20
Annex B (normative) Strength test for body and cover.22
Annex C (normative) Flow tests for deluge valves .23
Annex D (normative) Sealing assembly tests.26
Annex E (normative) Performance tests .28
Annex F (normative) Resistance to ageing test for non-metallic components (excluding
diaphragms, gaskets and seals) .30
Annex G (normative) Leakage resistance test.32
Annex H (normative) Test for sealing assembly elements.33
Annex I (normative) Endurance test .34
Annex J (informative) Typical testing schedule and example of test specimen number of deluge
valve assemblies.35
Annex ZA (informative) Clauses of this European Standard addressing essential requirements or
other provisions of EU Directives.36
Bibliography .40
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prEN 12259-9:2004 (E)
Foreword
This document (prEN 12259-9:2004) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
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, see informative Annex ZA, which is an integral part of this document.
This document is part of the following series:
gas extinguishing systems (EN 12094);
sprinkler systems (EN 12259 and EN 12845);
powder systems (EN 12416);
explosion protection systems (EN 26184);
foam systems (EN 13565);
hose systems (EN 671);
smoke and heat control systems (EN 12101).
EN 12259 will consist of the following:
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;
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: Pump sets.
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prEN 12259-9:2004 (E)
1 Scope
This part of EN 12259 specifies requirements for the construction and performance of deluge valve
assemblies used in automatic water spray systems complying with EN 14816.
This European Standard does not cover elastomeric sleeve type valves.
With the exception of automatic drain valves, auxiliary components and attachments to deluge valve
assemblies are not covered by this Part of EN 12259.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
alarm device
mechanical or electrical device to sound an alarm on operation of the deluge valve
3.2
automatic drain (valve)
device, usually remaining open, which automatically drains water from the deluge valve
3.3
clapper
type of sealing assembly (see 3.19)
3.4
deluge system
automatic fire protection system using a deluge valve, which is operated by auxiliary means to admit water
into a system of sprayers
3.5
deluge 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 The auxiliary means of operating a deluge valve may be mechanical, electrical, hydraulic, pneumatic, thermal,
manual or a combination of these.
3.6
dry pilot actuator
differential type valve which permits the operation of a hydraulically operated deluge valve upon loss of
pneumatic pressure from a dry pilot line
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prEN 12259-9:2004 (E)
3.7
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 valve
3.8
flow velocity
water velocity through pipe of the same nominal size as the deluge valve at the same flow rate
3.9
hydraulically/pneumatically operated deluge valve
valve, maintained in the set condition by service hydraulic/pneumatic pressure acting against a diaphragm or
piston that holds the sealing assembly closed
NOTE A change in pressure against the diaphragm or piston allows the valve to open.
3.10
mechanically operated deluge valve
deluge valve, maintained in the set position by mechanical means and released mechanically, e.g. by the
action of a release weight
3.11
minimum service pressure
lowest static water pressure required at the inlet to the deluge valve in the ready condition
3.12
nominal working pressure
maximum service pressure (see 3.21) at which the deluge valve is intended to operate
3.13
priming water
water to be provided at the outlet of the valve ready condition
3.14
supply-pressure operated deluge valve
deluge 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
3.15
ready (set) condition
state of the deluge valve, fully assembled, with sealing assembly in the set position with the service pressure
applied
3.16
reseating prevention
avoidance of the sealing assembly returning to the closed position
3.17
resetting (valve)
returning of the valve to the ready (set) condition
3.18
reinforced elastomeric element
element of a clapper, clapper assembly or seat seals made of an elastomeric compound with one or more
other components, which increases the tensile strength of the combination to at least twice that of the
elastomeric material alone
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prEN 12259-9:2004 (E)
3.19
sealing assembly
main movable sealing element of the deluge valve (e.g. clapper)
3.20
sealing assembly seat ring
main fixed sealing element of the deluge valve
3.21
service pressure
static water pressure at the inlet to the deluge valve in the ready condition
3.22
trim
external equipment and pipework, excluding the main installation pipework, fitted to the deluge valve
assembly, as specified by the supplier
3.23
trip point
point at which the deluge 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 valve to provide a local audible alarm when
the deluge system operates
3.25
water motor transmitter
hydraulically actuated device to generate an electrical current to operate an electrical alarm device
3.26
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 valve
4 Deluge valve assembly construction and performance
4.1 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 nominal size shall be DN40, DN50, DN65, DN80, DN100,
DN125, DN150, DN200 or DN250.
NOTE The diameter of the waterway through the sealing assembly seat ring may be less than the nominal size.
4.2 Connections
4.2.1 Connections to the valve body
4.2.1.1 The dimensions of all connections to the assembly shall be specified by the deluge valve
assembly supplier.
4.2.1.2 A connection shall be provided for the pilot line system for automatic and manual operation of the
deluge valve.
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prEN 12259-9:2004 (E)
4.2.2 Connections to the valve body or pipework
4.2.2.1 If priming water is required for sealing or damping purposes, external means shall be provided to
allow priming water to enter.
4.2.2.2 Means shall be provided to facilitate testing of alarms without tripping the deluge valve.
4.3 Pressure and flow limits
The nominal working pressure shall be specified by the supplier and shall be not less than 12 bar.
NOTE Inlet and outlet connections may be machined for lower working pressure in order to match installation
equipment of a lower working pressure.
The minimum service pressure shall be specified by the supplier and shall be not less than 1,4 bar.
The maximum allowable steady state flow shall be specified by the supplier.
4.4 Bodies and cover
4.4.1 Materials
The body and any cover shall be made of cast iron, bronze, brass, Monel metal, stainless steel or titanium or
materials with equivalent physical and mechanical properties.
If non-metallic materials (other than for gaskets and pipe seals) or metals with melting point of less than
800 °C form part of the deluge valve body and any cover, the assembled deluge valve shall conform to 4.10.1
and the sealing assembly shall open freely and fully when tested in accordance with Annex A.
4.4.2 Configuration
The deluge valve cover plate (if fitted) shall not be assembled 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, see 6.2 d).
4.4.3 Strength
4.4.3.1 The assembled deluge 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.
4.4.3.2 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 fastener, excluding
the force required to compress the gasket, does not exceed the minimum tensile strength specified in the
appropriate standard (e.g. EN ISO 898-1 [1], ISO 898-2 [2]), when the deluge 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.
4.5 Drains
4.5.1 The deluge valve body shall be provided with threaded connection in accordance with ISO 7-1 of at
least 20 mm to drain water from the valve body downstream of the sealing assembly when the valve is
installed in any position specified or recommended by the manufacturer.
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prEN 12259-9:2004 (E)
NOTE Where the drain opening is also to be used for the draining of the installation pipework, the size of the
threaded connection should conform to the appropriate value given in the installation standard.
4.5.2 An automatic or open drain shall be provided on the downstream side of the deluge valve to prevent
water columning and to facilitate checking of priming water level.
4.5.3 Automatic or open drains shall have a k factor of not less than one.
4.5.4 Automatic flow or velocity type drain valves, used for venting or alarm line drainage, shall close at a
pressure of not more than 1,4 bar with a flow rate through the drain valve just prior to closure of not less than
0,13 l/s and not more than 0,63 l/s when tested in accordance with C.1.
4.5.5 The flow through a permanently open-ended 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.
4.6 Sealing assembly and reseating prevention
4.6.1 Access
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 valve is returned to
service.
While the deluge valve is in the ready condition, the valve shall not easily be prevented from operating.
NOTE 1 Whatever means are provided should permit ready maintenance by one person with a minimum of downtime.
NOTE 2 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.
4.6.2 Springs and diaphragms
Springs and diaphragms shall not fracture or rupture during 5 000 cycles of normal operation when tested in
accordance with D.1. Failure of diaphragms shall not prevent the sealing assembly from opening fully.
4.6.3 Resistance to damage
The sealing assembly shall bear against a definite stop in the fully open position. There shall be no sign of
damage to the sealing elements of the deluge valve or any permanent twist, bend or fracture of any parts after
testing in accordance with E.2.
4.6.4 Materials for seat rings and bearing surfaces
4.6.4.1 Seat rings shall be made of bronze, brass, Monel metal, titanium, stainless steel or materials with
equivalent physical and mechanical properties.
4.6.4.2 The bearing surfaces of contacting parts that rotate or slide relative to each other shall be made
of bronze, brass, Monel metal, titanium or stainless steel or materials with equivalent physical and mechanical
properties.
NOTE Bushings or inserts may be used.
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4.6.5 Reseating prevention
Deluge valves shall be provided with a device which prevents the valve from reseating until manually reset
where:
a) the ratio of service pressure to installation 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 valves having a latch for the prevention of resetting 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 installation pressure is unknown or estimated to be greater than 0.8 to 1, shall be tested
in accordance with D.3 to determine that the ratio of service pressure to installation pressure.
NOTE The supplier may provide details of the deluge valve estimated ratio of service pressure to installation
pressure by submitting test evidence or calculations.
4.7 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 valve shall meet the requirements of 4.13 and 4.14 when tested in accordance
with Annex G, and Annex I.
4.8 Sealing assembly and diaphragm elements
4.8.1 There shall be no leakage of water when the deluge valve assembly is tested in accordance with E.2.
NOTE 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.
4.8.2 A seal of elastomer or other resilient materials shall not adhere to the mating surface when tested in
accordance with H.1.
4.9 Clearances
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 valve sluggish in action or inoperative.
4.9.1 Except for sealing assembly hinge boss areas, the radial clearance [see Figure 1 a)] between the
sealing assembly 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 19 mm if the body is cast iron or 9 mm if
both the body and sealing assembly are of non-ferrous metal, stainless steel, material of equivalent
performance or a combination of these.
For any sealing assembly hinge boss areas, the radial clearances shall be not less than 12 mm for a cast iron
body or 6 mm, if body and sealing assembly are of non-ferrous metal, stainless steel, material of equivalent
performance or a combination of these.
4.9.2 There shall be diametrical clearance [see Figure 1 b)], of not less than 3 mm between the inner edges
of the seat ring and the metal parts of the sealing assembly when in the closed position.
4.9.3 Any space in which the sealing assembly may trap debris below the valve seat shall be not less than
3 mm deep.
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4.9.4 The diametrical clearance [(see Figure 1 b)] between any pins and their bearings shall be not less
than 0,125 mm.
4.9.5 The total axial clearance [see Figure 1 c)] between any clapper hinge and the adjacent deluge valve
body bearing surfaces shall be not less than 0,25 mm.
4.9.6 Any reciprocating guide components in the main valve body, operation of which is essential to allow
the deluge 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.
4.9.7 Any sealing assembly, lever assembly, latch or hinge pin bearings or bushings shall project sufficient
axial distance to maintain dimension A [see Figure 1 c)] at not less than 3 mm if the adjacent parts are not of
bronze, brass, Monel metal, stainless steel or equivalent material.
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prEN 12259-9:2004 (E)
D
1
R
1
R D
2 2
a) Radial clearance = R - R b) Diametrical clearance = D - D
2 1 2 1
4
1
2
3
3
L
1
L
2
L
3
c) Total axial clearance = L – L ;
2 1
-
L L
3 2
Dimension A =
2
Key
1 Valve body
2 Pin
3 Bushings
4 Clapper
Figure 1 — Clearances
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prEN 12259-9:2004 (E)
4.10 Performance
4.10.1 Resistance of body to leakage and deformation
The assembled deluge 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.
4.10.2 Resistance of sealing assembly to leakage and deformation
The deluge 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.
4.10.3 Operational characteristics
4.10.3.1 When tested in accordance with E.2 the deluge 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.
NOTE The supplier should provide performance details that should include the deluge valve actuator operating
pressure and k factors. Details of the pilot line height limitations above the deluge valve should be provided for wet pilot
line operated deluge valves.
4.10.3.2 A deluge valve in the ready condition shall withstand without opening 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, when tested in accordance with E.2.
4.10.3.3 A pressure-loss operated deluge valve shall operate when the pressure at the actuating
mechanism within the valve is 0,3 bar or greater, within the water service pressure range of the minimum
service pressure to the nominal working pressure.
4.10.3.4 A deluge valve operated by supply pressure shall operate when the pressure at the actuating
mechanism in the valve is:
a) not more than two thirds the pressure requirements stated by the supplier; and
b) not more than half the supply pressure;
within the range of the minimum service pressure to the nominal working pressure.
4.10.3.5 Once tripped, deluge valves shall only reset by direct or remote manual intervention.
4.11 Deluge valve alarm line connections
When tested in accordance with E.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 valve or any alarm shut-off valve, and the alarm devices shall drain
automatically after each operation.
c) When tested in accordance with Annex I, the deluge valve shall actuate associated mechanical and
electrical alarm devices.
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4.12 Pressure loss due to hydraulic friction loss
The pressure loss across the deluge valve shall not be more than 0,4 bar when tested in accordance with C.3.
NOTE See 6.2j) regarding pressure loss marking.
4.13 Leak resistance
There shall be no leakage across the sealing assembly of deluge valve in the ready condition or, into the
alarm port when tested in accordance with Annex G.
4.14 Endurance
The deluge 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.
5 Evaluation of conformity
5.1 General
The compliance of the component with the requirements of this European Standard shall be demonstrated by:
initial type testing;
factory production control by the manufacturer.
NOTE The manufacturer is a natural or legal person, who places the component on the market under his own name.
Normally, the manufacturer designs and manufactures the component himself. As a first alternative, he may have it
designed, manufactured, assembled, packed, processed or labelled by subcontracting. As a second alternative he may
assemble, pack, process, or label ready-made products.
The manufacturer shall ensure:
• that the initial type testing in accordance with this European Standard is initiated and carried out
(where relevant, under the control of a product certification body); and
• that the component continuously complies with the initial type testing samples, for which compliance
with this European Standard has been verified.
He shall always retain the overall control and shall have the necessary competence to take the responsibility
for the component.
The manufacturer shall be fully responsible for the conformity of that component to all relevant regulatory
requirements. However, where the manufacturer uses components already shown to conform to those
requirements relevant for that component (e.g. by CE marking) the manufacturer is not required to repeat the
evaluation which led to such conformity. Where the manufacturer uses components not already shown to
conform, it is his responsibility to undertake the necessary evaluation to show conformity.
5.2 Initial type testing
5.2.1 Initial type testing shall be performed to demonstrate conformity with this European Standard.
All characteristics given in Clause 4 shall be subject to this initial type testing, except as described in 5.2.3 to
5.2.5.
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5.2.2 In the case of modification of the component or of the method of production (where these may affect
the stated properties), initial type testing shall be performed. All characteristics given in Clause 4, which may
be changed by the modification, shall be subject to this initial type testing, except as described in 5.2.3 to
5.2.5.
5.2.3 Tests previously performed in accordance with the provisions of this standard may be taken into
account providing that they were made to
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