EN 14339:2005

SLOVENSKI STANDARD
01-december-2005
Podzemni hidranti
Underground fire hydrants
Unterflurhydranten
Bouches d'incendie enterrées
Ta slovenski standard je istoveten z: EN 14339:2005
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 14339
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2005
ICS 13.220.10; 93.080.30
English version
Underground fire hydrants
Bouches d'incendie enterrées Unterflurhydranten
This European Standard was approved by CEN on 20 June 2005.
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 Central Secretariat 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 Central Secretariat 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14339:2005: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction.4
1 Scope .5
2 Normative references .5
3 Terms and definitions.6
4 Design requirements .7
4.1 General dimensions.7
4.2 Shell .7
4.3 Elastomers.7
4.4 Obturator – main valve .7
4.5 Stem seals .9
4.6 Materials including lubricants in contact with water intended for human consumption .9
4.7 Leaktightness and mechanical strength .9
4.8 Closing direction.10
4.9 Opening turns .10
4.10 Resistance of hydrant to operating loads.10
4.11 Stem drive.10
4.12 Inlet connections.11
4.13 Outlets .11
4.14 Drainage system .11
4.15 Internal and external corrosion resistance .11
4.16 Resistance to disinfection products.11
4.17 Hydrants for non potable water systems .12
4.18 Hydraulic characteristics.12
5 Test methods.12
5.1 General .12
5.2 General dimensions.12

5.3 Operational characteristics.12
6 Marking and additional data.13
6.1 Marking .13
6.2 Additional hydrant data .13
7 Evaluation of conformity .14
7.1 General .14
7.2 Initial type testing (ITT).15
7.3 Factory product control (FPC) .16
Annex ZA (informative) Clauses of the European Standard addressing the provisions of the EU
Construction Products Directive (89/106/EEC).19
ZA.1 Scope and relevant characteristics .19
ZA.2 Procedure and system for the attestation of conformity of underground fire hydrants .21
ZA.3 CE marking.21
ZA.4 EC certificate and Declaration of conformity.23
Bibliography.24

Foreword
This European Standard (EN 14339:2005) has been prepared by Technical Committee CEN/TC 192 “Fire
service equipment”, the secretariat of which is held by BSI, in cooperation with CEN/TC164 "Water supply"
and CEN/TC 69 “Industrial Valves”.
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 January 2006, and conflicting national standards shall be withdrawn at
the latest by January 2006.
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).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this European
Standard.
This is one of a series of standards for fire hydrants.
This is the first edition of this European Standard.
No International Standard exists for underground fire hydrants.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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.
Introduction
The purpose of a fire hydrant installation is to provide a connection (i.e. hydrant) to the water main to which
the firefighter can connect firefighting equipment. Underground hydrants consist of one or more valves and
outlet connectors and are installed in an underground chamber with a surface box and intended primarily to
supply water for firefighting and also may be used by water utilities (as defined in 3.3).
This European Standard is in conformity with the general requirements already established by CEN/TC 164 in
the field of water supply.
In respect of quality of water intended for human consumption caused by the product covered by this
European Standard:
1) this European Standard provides no information as to whether the product may be used without
restriction in any of the Member States of the EU or EFTA;
2) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of this product remain in force.

1 Scope
This European Standard specifies the requirements, test methods and marking applicable to underground fire
hydrants intended for fire fighting purposes:
 to be installed in a water distribution system;
 in sizes DN 80 and DN 100;
 suitable for an allowable operating pressure, PFA, of 10 bar or 16 bar or 25 bar with or without drain
facility;
 having a vertical or horizontal, flanged, socket or spigot inlet;
 with one or two outlets and having outlet/s to national requirements;
 of globe (screw down) or gate valve type.
This European Standard also provides for the evaluation of conformity of the underground fire hydrants to the
requirements of this European Standard.
This European Standard applies to fire hydrants for potable and non-potable water and for filtered water.
Additional requirements may apply for other liquids.
Couplings connected to outlets are outside the scope of this European Standard and should conform to
national requirements.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For
dated references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 681-1, Elastomeric seals — Material requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 1074-1:2000, Valves for water supply — Fitness for purpose requirements and appropriate verification
tests — Part 1: General requirements
EN 1074-2:2000, Valves for water supply — Fitness for purpose requirements and appropriate verification
tests — Part 2: Isolating valves
EN 1074-6:2004, Valves for water supply — Fitness for purpose requirements and appropriate verification
tests — Part 6: Hydrants
EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 1: Steel flanges
EN 1092-2, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 2: Cast iron flanges
EN 1503-1, Valves — Materials for bodies, bonnets and covers — Part 1: Steels specified in European
Standards
EN 1503-3, Valves — Materials for bodies, bonnets and covers — Part 3: Cast irons specified in European
Standards
EN ISO 9001:2000, Quality management systems — Requirements (ISO 9001:2000)
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
hydrant
connection to a water supply system including an isolating valve
[EN 1074-6:2004]
3.2
fire hydrant
hydrant designed to supply water for fire fighting during all phases of the fire
3.3
underground fire hydrant
fire hydrant installed in an underground chamber with a surface box, intended primarily to supply water for
firefighting and which may also be used by water utilities
3.4
obturator
movable component of the valve whose position in the fluid flow path permits, restricts or obstructs the fluid
flow (see EN 736-2). In addition it can be captive or loose
3.5
captive obturator
device for controlling the flow out of a pipeline and into a pipeline
3.6
loose obturator
device for controlling flow out of a pipeline but which prevents flow into a pipeline
3.7
shell
pressure-containing envelope of the valve
NOTE It normally comprises the body and, when included in the design, a bonnet or cover and the body bonnet or
body cover joint (see EN 736-2).
3.8
DN nominal size
alphanumeric designation of the size of pipework components used for reference purposes. It comprises the
letters DN followed by a dimensionless round number which is loosely related to the effective dimensions, in
millimetres, of the bore or external diameter of the end connections
[EN 1074-1:2000]
3.9
PN nominal pressure
alphanumeric designation used for reference purposes and related to a combination of numerical and
dimensional characteristics of a component of a pipe system. It comprises the letters PN followed by a
dimensionless round number
[EN 1074-1:2000]
3.10
allowable operating pressure PFA
maximum hydrostatic pressure that a component can withstand continuously in service
[EN 1074-1:2000]
3.11
allowable maximum operating pressure PMA
maximum hydrostatic pressure including surge that a component can withstand from time to time in service
(see EN 1074-1)
3.12
allowable test pressure PEA
maximum hydrostatic pressure that a newly installed component can withstand for a relatively short duration
when either fixed above ground level or laid and backfilled underground in order to ensure the integrity and
tightness of the pipeline
[EN 1074-1:2000]
3.13
flow coefficient Kv (Cv)
rate of flow in cubic metres per hour that will cause a differential pressure of one bar through the fire hydrant
(see EN 736-3)
4 Design requirements
4.1 General dimensions
As a minimum, the dimensions indicated in Figure 1 shall be given in the manufacturer’s catalogue.
4.2 Shell
The shell material of the hydrant shall be chosen from Table 1.
Table 1 — Shell material
Material Reference standard
Flake graphite cast iron EN 1503-3
Spheroidal graphite cast iron EN 1503-3
Stainless steel EN 1503-1
4.3 Elastomers
All elastomeric seals within the hydrant shall comply with EN 681-1. They shall be either type WA for cold
potable water use or suitable for the fluid with which they come into contact (see 4.6).
4.4 Obturator – main valve
The hydrant obturator shall be either captive or loose type.
The manufacturer shall declare if the design of the hydrant permits the obturator to be replaced in situ.
NOTE For safety reasons this replacement should only be carried out when the fire hydrant is not under pressure.
H
H
A
C
B
R
R
D
Key
1 Vertical inlet DN   5 Maximum size of hydrant (A max, B max)
2 Horizontal inlet DN   6 Minimum clear area of Surface box and Covers (D, R1min, R2min)
3 Drive    7 Ground level
4 Outlet connector   8 Height of the ground level above spindle
9 Height of the ground level above outlet H Depth of the outlet from the spindle
Figure 1 — Typical fire hydrant
4.5 Stem seals
Stem seal provision and servicing facilities shall be in accordance with national requirements valid in the
country of use of the product.
NOTE 1 Stem seals of globe (screw down) hydrants are capable of being replaced with the valve closed and under
operating pressure.
NOTE 2 Stem seals of gate valve hydrants are capable of being replaced with the valve fully open and under operating
pressure.
NOTE 3 The term ‘stem’ is also known as ‘spindle’.
NOTE 4 A future revision of this European Standard will give a list of acceptable provisions, allowing each Member
State to choose those provisions they wish.
4.6 Materials including lubricants in contact with water intended for human consumption
Pending the introduction of a common European Approvals Scheme ‘E.A.S.’, all materials including lubricants
in the construction of a hydrant, that are likely to come into contact with water for human consumption, shall
comply with the National Regulations in the country of use.
4.7 Leaktightness and mechanical strength
4.7.1 General
The hydrant shall be suitable for use at the relevant pressures shown in Table 2, and shall meet the
requirements of 4.7.2 to 4.7.3.
Table 2 — Pressures
a
PN PFA PMA PEA
MPa (bar) MPa (bar) MPa (bar)
10 1,0 (10) 1,2 (12) 1,7 (17)
16 1,6 (16) 2,0 (20) 2,5 (25)
25 2,5 (25) 3,5 (35) 3,75 (37,5)
a
PEA only applies to valves not in the closed position.

4.7.2 Shell and all pressure containing components (including stem seals)
4.7.2.1 Leaktightness
When tested in accordance with the Annex A of EN 1074-1:2000, using the values of PEA from Table 2, there
shall be no visible sign of leakage past the valve.
NOTE This is equivalent to rate "A" as defined in EN 1074-1:2000.
4.7.2.2 Mechanical strength
Having successfully passed the leak tightness test 4.7.2.1, the hydrant shall not show any sign of defect.
4.7.3 Obturator
4.7.3.1 Leaktightness
When tested in accordance with Annex B of EN 1074-1:2000, using the values of 1,1 × PFA from Table 2 and
the appropriate MOT values from Table 3, there shall be no visible sign of leakage past the valve.
NOTE This is equivalent to rate "A" as defined in EN 1074-1:2000.
4.7.3.2 Mechanical strength
Having successfully passed the leak tightness test 4.7.3.1, there shall be no other sign of defect.
4.7.4 Endurance
The requirements and test method shall be according to EN 1074-6:2004, 5.5.1.
4.7.5 Endurance of the non-return device (where fitted)
The requirements and test method shall be in accordance with EN 1074-6:2004, 5.5.2.
4.8 Closing direction
The hydrant shall be closed by turning the stem in a clockwise direction when viewed from above.
4.9 Opening turns
4.9.1 Total turns
When testing in accordance with 5.3.1, the number of turns "N" required to fully open the valve shall be
between 5 and 15 for DN 80 and between 6 and 15 for DN 100.
4.9.2 Start of flow (dead turns)
The maximum number of turns to commence flow shall not exceed 4 and in addition the manufacturer shall
declare the number of turns to start the flow.
When tested in accordance with 5.3.2, flow shall occur.
4.10 Resistance of hydrant to operating loads
4.10.1 Maximum operating torque (MOT) for operating loads
When tested in accordance with EN 1074-6:2004, Annex C, the torque required to seal the hydrant shall meet
the appropriate value given in Table 2 of EN 1074-6:2004.
4.10.2 Minimum strength torque (mST)
When tested in accordance with EN 1074-2:2000, Annex A, the torque required for the resistance of the
hydrant shall meet the appropriate value given in Table 2 of EN 1074-6:2004.
4.11 Stem drive
The stem drive shall comply with national requirements valid in the country of use of the product. Where fitted,
the stem cap shall be securely fixed in position during normal use. The means of fixing shall be such as to
permit removal of the cap by authorised users but also to prevent unintentional removal. The design of the
stem cap recess shall suit the stem end of the valve.
NOTE 1 The term ‘stem’ is also known as ‘spindle’.
NOTE 2 A future revision of this European Standard will give a list of acceptable provisions, allowing each Member
State to choose those provisions they wish.
4.12 Inlet connections
Inlet flanges shall be suitable for connecting to flanges conforming with EN 1092-1 or EN 1092-2, depending
on the shell material.
Depending on the customer need, the flanges may additionally accommodate older pattern flanges in
accordance with national requirements.
Where the inlet is of a proprietary type the manufacturer shall declare its dimensions.
NOTE A future revision of this European Standard will give a list of acceptable provisions, allowing each Member
State to choose those provisions they wish.
4.13 Outlets
The design of the outlet shall conform to National Requirements valid in the country of use of the hydrant.
4.14 Drainage system
The performance of the draining system, where fitted to the hydrant, shall comply with the requirements of
EN 1074-6:2004, 5.6. In addition, the manufacturer shall declare the volume of retained water and the time for
draining.
4.15 Internal and external corrosion resistance
4.15.1 General
The internal surfaces which are in continuous contact with the water, and all external surfaces of the hydrant
(including bolts) which are in continuous contact with the surrounding soil, water or atmosphere, shall be
resistant to corrosion and ageing by appropriate selection of materials.
4.15.2 Coatings
All cast iron components shall be coated to protect against corrosion and protect the quality of the water
intended for human consumption contained within the hydrant, if applicable.
NOTE The colour of the coatings may be to technical specifications depending on the conditions of use.
4.15.3 Other components
Other component parts of the hydrant to those in 4.15.1 shall be manufactured from materials that will resist
corrosion for the design life of the product under the conditions of use for which it is intended.
4.16 Resistance to disinfection products
Where applicable, the requirement and test shall be in accordance with 5.4 of EN 1074-1:2000.
4.17 Hydrants for non potable water systems
In cases where the hydrant does not transport water intended for human consumption, the manufacturer shall
ensure that all materials used in the hydrant (where they come into contact with the fluid) shall not be
adversely affected by that fluid.
4.18 Hydraulic characteristics
The hydraulic characteristics of each model of hydrant shall be determined in accordance with EN 1074-
6:2004, 5.3.
The manufacturer shall declare the Kv value (with captive or with loose obturator) taking into account the DN
of the inlet and the internal diameter of th
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