oSIST prEN 12259-13:2022

Fixed firefighting systems - Components for sprinkler and water spray systems - Part 13: ESFR sprinklers

This document specifies requirements and test methods for early suppression and fast response (ESFR) sprinklers with a nominal discharge coefficient of 200 (pendent and upright), 240 (pendent and upright), 320 (pendent), 360 (pendent), 400 (pendent) and 480 (pendent) l/min/(bar)1/2.

Ortsfeste Brandbekämpfungsanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen - Teil 13: ESFR-Sprinkler

Dieses Dokument legt Anforderungen und Prüfverfahren für früh unterdrückende schnell ansprechende (ESFR) Sprinkler (en: early suppression and fast response sprinklers) mit einem Nenndurchflusskoeffizienten von 200 l/min/(bar)1/2 (hängende und stehende Sprinkler), 240 l/min/(bar)1/2 (hängende und stehende Sprinkler), 320 l/min/(bar)1/2 (hängende Sprinkler), 360 l/min/(bar)1/2 (hängende Sprinkler), 400 l/min/(bar)1/2 (hängende Sprinkler) und 480 l/min/(bar)1/2 (hängende Sprinkler) fest.

Installations fixes de lutte contre l’incendie - Composants des systèmes d’extinction du type sprinkleur et à pulvérisation d’eau - Partie 13 : Sprinkleurs ESFR

Le présent document spécifie les exigences et les méthodes d’essai pour les sprinkleurs de suppression précoce à réponse rapide (ESFR) ayant un coefficient de décharge nominal de 200 (pendant et debout), 240 (pendant et debout), 320 (pendant), 360 (pendant), 400 (pendant) et 480 (pendant) l/min/(bar)1/2.

Vgrajene naprave za gašenje - Sestavni deli sprinklerskih sistemov in sistemov s pršečo vodo - 13. del: Sprinklerji ESFR

General Information

• Status: Not Published
• Public Enquiry End Date: 27-Feb-2022
• ICS: 13.220.10 - Fire-fighting
• Technical Committee: POZ - Požarna varnost
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 26-Dec-2021
• Due Date: 15-May-2022
• Completion Date: 01-Mar-2022
• 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
• Ref Project: prEN 12259-13 - Fixed firefighting systems - Components for sprinkler and water spray systems - Part 13: ESFR sprinklers

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 12259-13:2022
01-februar-2022
Vgrajene naprave za gašenje - Sestavni deli sprinklerskih sistemov in sistemov s
pršečo vodo - 13. del: Sprinklerji ESFR

Fixed firefighting systems - Components for sprinkler and water spray systems - Part 13:

ESFR sprinklers

Ortsfeste Brandbekämpfungsanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen -

Teil 13: ESFR-Sprinkler

Installations fixes de lutte contre l’incendie - Composants des systèmes d’extinction du

type sprinkleur et à pulvérisation d’eau - Partie 13 : Sprinkleurs ESFR
Ta slovenski standard je istoveten z: prEN 12259-13
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 12259-13:2022 en,fr,de

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

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oSIST prEN 12259-13:2022
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oSIST prEN 12259-13:2022
DRAFT
EUROPEAN STANDARD
prEN 12259-13
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021
ICS 13.220.20
English Version
Fixed firefighting systems - Components for sprinkler and
water spray systems - Part 13: ESFR sprinklers

Installations fixes de lutte contre l'incendie - Ortsfeste Brandbekämpfungsanlagen - Bauteile für

Composants des systèmes d'extinction du type Sprinkler- und Sprühwasseranlagen - Teil 13: ESFR-

sprinkleur et à pulvérisation d'eau - Partie 13 : Sprinkler
Sprinkleurs ESFR

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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12259-13:2021 E

worldwide for CEN national Members.
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prEN 12259-13:2021 (E)
Contents Page

European foreword ...................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

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

4 Assessment methods and criteria ............................................................................................................. 9

4.1 Connections ....................................................................................................................................................... 9

4.2 Hydrostatic strength and hydraulic leak resistance .......................................................................... 9

4.3 Pneumatic leak resistance ........................................................................................................................... 9

4.4 Leakage resistance ....................................................................................................................................... 10

4.5 Release of the sprinkler at minimum operating pressure ............................................................. 10

4.6 Release under temperature ...................................................................................................................... 10

4.7 Complete operation ..................................................................................................................................... 11

4.8 Size of water passageways ......................................................................................................................... 12

4.9 Sprinkler temperature identification ................................................................................................... 12

4.10 Distribution of extinguishing media ...................................................................................................... 13

4.11 Actual delivered density ............................................................................................................................. 14

4.12 Performance under fire .............................................................................................................................. 15

4.13 Discharge coefficient ................................................................................................................................... 16

4.14 Thrust measurement ................................................................................................................................... 18

4.15 Sensitivity (Response time index) .......................................................................................................... 18

4.16 Frame strength .............................................................................................................................................. 19

4.17 Fusible link type ............................................................................................................................................ 21

4.18 Bulb type .......................................................................................................................................................... 21

4.19 Water hammer ............................................................................................................................................... 24

4.20 Strength of deflector .................................................................................................................................... 24

4.21 Vibration resistance ..................................................................................................................................... 24

4.22 Rough use and abuse ................................................................................................................................... 25

4.23 Freezing ............................................................................................................................................................ 26

4.24 Vacuum ............................................................................................................................................................. 26

4.25 High ambient temperature exposure (90 day test) .......................................................................... 26

4.26 Thermal shock ............................................................................................................................................... 27

4.27 Moist air ........................................................................................................................................................... 27

4.28 Salt spray .......................................................................................................................................................... 27

4.29 Stress cracking for copper based parts ................................................................................................. 28

4.30 Stress cracking for austenitic, ferritic, and duplex stainless-steel parts .................................. 29

4.31 Sulphur dioxide and carbon dioxide corrosion ................................................................................. 29

4.32 Hydrogen sulphide corrosion ................................................................................................................... 30

Annex A (informative) Typical test setup for release under temperature test (liquid bath) ........ 32

Annex B (normative) Pipe manifold configuration for lodgement .......................................................... 33

Annex C (normative) Pendent sprinkler water distribution...................................................................... 34

C.1 General.............................................................................................................................................................. 34

C.2 Values for pendent sprinkler water distribution .............................................................................. 34

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C.3 Test set-up ....................................................................................................................................................... 36

Annex D (normative) Actual delivered density apparatus ......................................................................... 41

D.1 General ............................................................................................................................................................. 41

D.2 Values for actual delivered density ........................................................................................................ 41

D.3 Test set-up ....................................................................................................................................................... 44

D.4 Heptane burner settings ............................................................................................................................ 46

Annex E (normative) Performance under fire ................................................................................................ 47

E.1 General ............................................................................................................................................................. 47

E.2 Values for performance under fire......................................................................................................... 47

E.3 Fire test scenarios ........................................................................................................................................ 48

E.4 Test set-ups ..................................................................................................................................................... 53

Annex F (normative) Thrust measurement ..................................................................................................... 69

F.1 General ............................................................................................................................................................. 69

F.2 Values for thrust measurement ............................................................................................................... 69

F.3 Test set-up ....................................................................................................................................................... 70

Annex G (normative) Sensitivity (response time index) ............................................................................. 71

G.1 General ............................................................................................................................................................. 71

G.2 Test conditions .............................................................................................................................................. 71

G.3 Test set-up ....................................................................................................................................................... 71

Annex H (normative) Tolerances ......................................................................................................................... 73

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oSIST prEN 12259-13:2022
prEN 12259-13:2021 (E)
European foreword

This document (prEN 12259-13:2021) 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.

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 9: Deluge alarm valves;
— Part 12: Pumps;
— Part 13: ESFR sprinklers;
— Part 14: Sprinklers for residential applications.
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1 Scope

This document specifies requirements and test methods for early suppression and fast response (ESFR)

sprinklers with a nominal discharge coefficient of 200 (pendent and upright), 240 (pendent and upright),

1/2
320 (pendent), 360 (pendent), 400 (pendent) and 480 (pendent) l/min/(bar) .
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 12845, Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenance

EN 12259, Fixed firefighting systems - Components for sprinkler and water spray systems

EN 60751, Industrial platinum resistance thermometers and platinum temperature sensors

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 document, the terms and definitions given in EN 12845, EN 12259 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
actual delivered density
ADD

measure of the rate at which water is actually deposited from an operating sprinkler type device(s) onto

the top horizontal surface of a burning combustible array
Note 1 to entry: ADD is expressed in l/min/m .
3.2
service load

measure of the force applied to the sprinkler frame due to assembly of the operating parts, plus the

equivalent force resulting from the maximum rated inlet pressure
3.3
conductivity
C-factor

measure of the conductance between the sprinkler's heat responsive element and the water filled fitting

1/2
Note 1 to entry: Conductivity is expressed in (m/s) .
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3.5
mean design service load

sprinkler manufacturer’s specified and assured highest mean load applied on the operating element at

the maximum rated inlet pressure
3.6
cartoned expanded plastic

commodity product consisting of expanded polystyrene plastic food service trays (or meat trays)

packaged in single-wall corrugated cartons

Note 1 to entry: Each carton contains 200 plastic trays arranged in four stacks of 50 trays each with a density of

0,038 g/cm . Typical trays weigh approximately 15,25 g each, measure approximately 270 mm × 270 mm × 5 mm

thick and consists of expanded foam plastic. Each carton measures 530 mm × 530 mm × 510 mm, shall have a

moisture content of between 3,8 % and 7,4 % and weigh 4 kg when filled with the plastic trays. Each pallet load

consists of eight cartons placed in a 2 × 2 × 2 array upon a 1 070 mm × 1 070 mm × 130 mm two-way, slatted deck

hardwood pallet. The pallet shall be minimum 90 % white, red or black oak, with an 8 % to 10 % moisture content.

3.7
standard plastic test commodity
product of cartoned, unexpanded, rigid crystalline, polystyrene jars

Note 1 to entry: Measuring 89 mm in diameter, 91,44 mm high and 1,42 mm thick (with a volume of 0,47 l), packaged

in compartmented, single wall, cardboard cartons measuring 530 mm × 530mm × 510 mm. Jars are arranged in five

layers, 25 per layer giving total of 125. Eight cartons are stacked two wide by two deep by two high; on a two-way,

slatted deck hardwood pallet measuring 1070 mm × 1 070 mm × 1 300 mm.
3.8
fusible link sprinkler

sprinkler which opens when an element provided for that purpose melts at a prescribed temperature

3.9
glass bulb sprinkler

sprinkler which opens when a liquid-filled glass bulb bursts at a prescribed temperature

3.10
lodgement

malfunction in the operation of a sprinkler which, when operated under a typical system water pressure,

experiences the hang-up of an operating part on, or between, the frame, deflector and/or compression

screw, adversely affecting the water distribution for a period in excess of ten seconds

Note 1 to entry: A momentary hesitation of an operating part to clear itself from temporary contact with the frame,

deflector and/or compression screw does not constitute a lodgement.
3.11
heat responsive element

component of a sprinkler assembly that, when subjected to the influence of heat, ruptures, bursts or

otherwise functions, causing water to be discharged through the sprinkler orifice

3.12
leak point

pressure at which there is leakage of water from the sprinkler in excess of one drop per minute

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3.14
operating temperature

temperature in degrees at which the heat responsive element of a sprinkler operates when subjected to

a controlled rate-of-temperature-rise liquid bath
3.15
orientation ‘A’

plunge tunnel condition in which the sprinkler is situated such that the air flow is perpendicular to both

the waterway axis and the plane of the frame arms and the heat responsive element is upstream of the

frame arms
3.16
orientation ‘B’

plunge tunnel condition in which the sprinkler is situated such that the air flow is perpendicular to both

the waterway axis and the plane of the frame arms and the heat responsive element is downstream of the

frame arms
3.17
orientation ‘C’

plunge tunnel condition in which the sprinkler is situated such that the axis of the sprinkler inlet is

parallel to the air flow and the deflector faces and is perpendicular to the air flow

3.18
orifice
opening in a sprinkler body through which the water is discharged
3.19
pendent sprinkler
sprinkler in which the nozzle directs the water downwards
3.20
response time index
RTI
measure of the thermal sensitivity of the sprinkler
1/2
Note 1 to entry: RTI is expressed in (ms) .
3.21
service pressure
working hydrostatic pressure of a sprinkler system
3.22
strutting

partial fracture of a glass bulb or partial rupture of a fusible link heat responsive element which does not

result in sprinkler operation
3.23
upright sprinkler
sprinkler in which the nozzle directs the water upwards
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oSIST prEN 12259-13:2022
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3.24
weep point
leak point
pressure at which any visible leakage of water is detected
3.25
aisle jump

propagation of fire through radiant heat from the commodity immediately surrounding the ignition

location to the remote commodity which is separated from the main array by a 1,2 m aisle

3.26
cartoned expanded plastic commodity

commodity product consisting of expanded polystyrene plastic food service trays packaged in single-wall

corrugated cartons

Note 1 to entry: Each carton contains 200 plastic trays arranged in four stacks of 50 trays each. Typical trays weigh

approximately 15 g each, measure approximately 27 cm × 27 cm × 0,5 cm thick and consist of expanded foam plastic.

Each carton measures 53 cm × 53 cm × 51 cm and weighs 4,0 kg when filled with the plastic trays. Each pallet load

consists of eight cartons placed in a 2 ×2 × 2 array upon a 107 cm × 107 cm × 13 cm two-way, slatted deck hardwood

pallet.
3.27
cartoned unexpanded plastic commodity

commodity product of cartoned unexpanded plastic, consisting of rigid crystalline polystyrene jars

(empty, approximately 473 ml) packaged in compartmented, single wall, corrugated cartons measuring

53 cm × 53 cm × 51 cm

Note 1 to entry: Jars are arranged in five layers, 25 per layer for a total of 125. Each pallet load consists of eight

cartons, arranged in a 2 × 2 × 2 array upon a 107 cm × 107 cm × 13 cm two-way, slatted deck hardwood pallet.

3.28
mean bulb strength
glass bulb mean bulb strength for any batch of 55 or more bulbs
3.29
mean design bulb strength

glass bulb manufacturer’s specified and assured lowest mean bulb strength for any batch of 55 or more

bulbs
3.30
design lower tolerance limit
DLTL
glass bulb manufacturer’s specified and assured lowest lower tolerance limit
3.31
lower tolerance limit
LTL

glass bulb lowest strength determined by test and statistical analysis of a batch of 55 or more bulbs

3.32
design upper tolerance limit
DUTL
sprinkler manufacturer’s specified and assured highest upper tolerance limit
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3.33
upper tolerance limit
UTL

highest service load determined by test and statistical analysis of a batch of 5 or more sprinklers

4 Assessment methods and criteria
4.1 Connections
4.1.1 Assessment method

The sprinkler connection, e.g. the thread size shall be assessed by measurements.

4.1.2 Criteria

The thread connections of the sprinkler shall be in accordance with ISO 7-1 or shall be grooved

connections. Alternative connection methods that have been tested and validated for use in fire sprinkler

systems also fulfil 4.1.2.
4.2 Hydrostatic strength and hydraulic leak resistance
4.2.1 Assessment method

Subject the sprinklers to water pressure of (30 ± 1) bar at the inlet. Increase the pressure from 0 to

(30 ± 1) bar at a rate not exceeding 1 bar/s, maintain the pressure at (30 ± 1) bar for a period of 3 min

and then allow it to fall to 0 bar. After the pressure has dropped to 0 bar, increase it to (0,5 ± 0,1) bar in

not more than 5 s. Maintain this pressure for 15 s, and then increase it to (10 ± 0,5) bar at a rate not

exceeding 1 bar/s and maintain it for 15 s. Examine the sprinkler for evidence of leakage during the test.

After testing, each sample shall be further subjected to a gradually increasing hydrostatic pressure to

48,3 bar ± 3 % at a rate not to exceed 20,7 bar ± 3 % per second. The test pressure shall be maintained

+0,1

for 1 min. If leakage at the orifice prevents testing at 48,2 bar ± 3 %, the maximum attainable test

+0,1

pressure shall be maintained for min. Leakage at the orifice above a hydrostatic pressure of 34,5 bar

± 3 % shall be deemed acceptable.
4.2.2 Criteria

No visible hydraulic leakage at 30 bar for a period of 3 min and no rupture with an internal hydrostatic

pressure of up to 48,3 bar for a period of 1 min.
4.3 Pneumatic leak resistance
4.3.1 Assessment method
+0,1

Four previously untested sprinklers shall be individually conditioned at (-29 ± 6) °C for 24 h. Each

sample shall then be pneumatically pressurized to 2,1 ± 0,1 bar, immersed in glycol liquid conditioned to

+0,1
(-29 ± 6) °C and observed for 5 min.
4.3.2 Criteria
No visible pneumatic leakage.
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4.4 Leakage resistance
4.4.1 Assessment method

Five previously untested samples shall be hydrostatically tested to confirm that there are no weep or leak

points at, or below, 34,5 bar ± 3 %. The samples shall then be installed on a water-filled test apparatus

which is to be maintained at ambient temperature and at a constant pressure of 20,7 bar ± 3 % for

+0,25

30 days. The samples shall be visually examined weekly during the test period for evidence of leakage

at the seal.
4.4.2 Criteria

No visible leakage at 20,7 bar for a period of 30 days and no evidence of distortion or physical damage.

4.5 Release of the sprinkler at minimum operating pressure
4.5.1 Assessment method

Ten previously untested sprinklers shall be installed in their intended orientation, subjected to an inlet

water pressure of 0,35 bar ± 3 % and operated using a suitable heat source. If a sample does not operate

fully as described above, the pressure shall be slowly increased to determine the actual minimum

operating pressure.
4.5.2 Criteria

All parts which are intended to prohibit the discharge or leakage of water have cleared the exit of the

waterway within 5 s.
4.6 Release under temperature
4.6.1 Assessment method
4.6.1.1 Apparatus

Laboratory temperature measuring device having an accuracy of ± 0,25 % of the nominal rating,

calibrated to a depth of 40 mm immersion, for determining temperatures of liquids in bath tests and

operating temperatures. The thermally sensitive part of the sensor (e.g. bulb of a thermometer) shall be

held level with the centre of the sprinkler operating parts (fusible element). To control the temperature

in the thermal bath, a PT100 sensor in accordance to EN 60751 shall be used.

For sprinklers with a nominal operating temperature less than or equal to 80 °C a liquid bath of

demineralized water shall be used. For sprinklers with higher rated elements a liquid bath of glycerine,

vegetable oil or synthetic oil shall be used.
NOTE An example of a typical bath is given in Figure A.1.
4.6.1.2 Procedure

A total of 10 sprinklers is to be tested. Heat sprinklers in a liquid bath from a temperature of (20 ± 5) °C

to an intermediate temperature of 11,1 ± 1,1°C below their nominal operating temperature. The rate of

temperature increase shall not exceed 20 °C per minute. Maintain the intermediate temperature for

min. Then increase the temperature at a rate of (0,5 ± 0,1) °C per minute until the sprinklers operate or

up to 2,0 °C above the upper operating limit.

Determine the nominal operating temperature with temperature measuring device having an accuracy

of ± 0,25 % of the nominal temperature rating.
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The sprinklers shall be located in the vertical position and totally covered by the liquid to a depth of at

least 5 mm. The geometric centre of the fusible element shall be located not less than 35 mm below the

liquid surface and in alignment with the temperature sensing device. The temperature deviation within

the test zone should be within 0,25 °C.

The preferred location of the geometric centre of the fusible element and temperature measuring device

should be (40 ± 5) mm below the liquid surface.

If strutting occurs during the test the air bath test (see 4.6.1.3) shall be performed.

4.6.1.3 Air bath test

Fifty previously untested sprinklers shall be placed on their threaded inlets in a programmable oven

circulating air at ambient temperature. The temperature in the oven shall be steadily raised to

+0,1

11,1 ± 1,1°C below the nominal temperature rating of the sprinklers over a 20 minute period. Once

this temperature is reached, the oven shall be maintained at constant temperature for a period of

60 ± 5 min. The temperature shall then be raised at a constant rate of 0,5 ± 0,3 °C per minute until the

temperature reaches 22 ± 2,8 °C above the nominal temperature rating of the sprinklers.

4.6.2 Criteria

Full rupture of heat responsive element in liquid bath (see 4.6.1.2) within a temperature range of

t ± (0,035 t +0,62)] °C, where ‘t’ is the nominal operating temperature, resulting in sprinkler operation.

When subjected to the air bath test no partial fracture of a glass bulb or no partial rupture of a fusible link

(i.e. strutting) shall occur.
4.7 Complete operation
4.7.1 Assessment method

Samples shall be selected in accordance with Table 1 and shall be individually installed in their intended

installation position, on a pipe manifold as shown in Annex B. Each sample shall be subjected to an inlet

water pressure in accordance with 4.7.2, operated using a suitable open flame heat source, and observed

for complete and proper functioning. A total of 80 sprinklers shall be tested.

Five samples shall be tested at each pressure with the pipe manifold configured for double

...