SIST EN 12094-8:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vgrajeni gasilni sistemi – Sestavni deli sistemov za gašenje s plinom – 8. del: Zahteve in preskusne metode za spojeOrtsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 8: Anforderungen und Prüfverfahren für VerbindungenInstallations fixes de lutte contre l'incendie - Éléments constitutifs des installations d'extinction a gaz - Partie 8: Exigences et méthodes d'essai pour raccordsFixed firefighting systems - Components for gas extinguishing systems - Part 8: Requirements and test methods for connectors13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 12094-8:2006SIST EN 12094-8:2006en01-julij-2006SIST EN 12094-8:2006SLOVENSKI
STANDARDSIST EN 12094-8:19981DGRPHãþD



SIST EN 12094-8:2006



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12094-8April 2006ICS 13.220.20Supersedes EN 12094-8:1998
English VersionFixed firefighting systems - Components for gas extinguishingsystems - Part 8: Requirements and test methods for connectorsInstallations fixes de lutte contre l'incendie - Élémentsconstitutifs des installations d'extinction à gaz - Partie 8:Exigences et méthodes d'essai pour raccordsOrtsfeste Brandbekämpfungsanlagen - Bauteile fürLöschanlagen mit gasförmigen Löschmitteln - Teil 8:Anforderungen und Prüfverfahren für VerbindungenThis European Standard was approved by CEN on 9 March 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12094-8:2006: ESIST EN 12094-8:2006



EN 12094-8:2006 (E) 2 Contents Page Foreword.3 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Requirements.7 4.1 General design.7 4.2 Connection threads.8 4.3 Resistance to leakage.8 4.4 Resistance to bursting.8 4.5 Resistance of type 2 and type 4 connectors to pressure and heat.8 4.6 Resistance of type 2 and type 4 connectors to heat and cold shock.9 4.7 Resistance of flexible connectors to cold.9 4.8 Resistance of type 2 connectors to flexing.9 4.9 Documentation.9 5 Type test methods.10 5.1 Conditions.10 5.2 Samples.10 5.3 Compliance.11 5.4 Test for resistance to leakage.11 5.5 Test for resistance to bursting.11 5.6 Test for resistance of type 2 and type 4 connectors to pressure and heat.12 5.7 Test for resistance of type 2 and type 4 connectors to heat and cold shock.12 5.8 Test for resistance of flexible connectors to cold.12 5.9 Test for resistance of type 2 connectors to flexing.12 6 Marking.12 7 Evaluation of conformity.13 7.1 General.13 7.2 Initial type testing.13 7.3 Factory production control (FPC).14 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the Construction Products Directive.18 ZA.1 Scope and relevant characteristics.18 ZA.2 Procedure for the attestation of conformity of connectors.19 ZA.3 CE Marking and labelling.20 Bibliography.22
SIST EN 12094-8:2006



EN 12094-8:2006 (E) 3 Foreword This European Standard (EN 12094-8:2006) 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 2006, and conflicting national standards shall be withdrawn at the latest by April 2009. This European Standard supersedes EN 12094-8:1998. 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 European Standard is part of a series concerned with gas extinguishing system components. The following European Standards are planned to cover:  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),  water spray systems (EN 14816). This standard has the general title "Fixed firefighting systems – Components for gas extinguishing systems" and will consist of the following parts:  Part 1: Requirements and test methods for electrical automatic control and delay devices,  Part 2: Requirements and test methods for non-electrical automatic control and delay devices,  Part 3: Requirements and test methods for manual triggering and stop devices,  Part 4: Requirements and test methods for container valve assemblies and their actuators,  Part 5: Requirements and test methods for high and low pressure selector valves and their actuators,  Part 6: Requirements and test methods for non-electrical disable devices,  Part 7: Requirements and test methods for nozzles for CO2 systems, SIST EN 12094-8:2006



EN 12094-8:2006 (E) 4  Part 8: Requirements and test methods for connectors,  Part 9: Requirements and test methods for special fire detectors,  Part 10: Requirements and test methods for pressure gauges and pressure switches,  Part 11: Requirements and test methods for mechanical weighing devices,  Part 12: Requirements and test methods for pneumatic alarm devices,  Part 13: Requirements and test methods for check valves and non-return valves,  Part 16: Requirements and test methods for odorizing devices for CO2 low pressure systems,  Part 20: Requirements and test methods for the compatibility of components. 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 12094-8:2006



EN 12094-8:2006 (E) 5 Introduction It has been assumed in the preparation of this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. All pressure data in this European Standard are given as gauge pressures in bar, unless otherwise stated. NOTE 1 bar = 105 N m-2 = 100 kPa. SIST EN 12094-8:2006



EN 12094-8:2006 (E) 6 1 Scope This European Standard specifies requirements and describes test methods for flexible and rigid connectors used in CO2 -, Inert Gas- or Halocarbon gas fire extinguishing systems. This European Standard is applicable to connectors used:  between container valves and the manifold (type 1 and type 5 connector);  in pneumatic pilot lines (type 3 connector);  in distribution pipework of fire extinguishing installations downstream of the manifold/selector valve (type 2 or type 4 connector). 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 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 CO2-high-pressure installation fire extinguishing installation in which the CO2 is stored at ambient temperature. For example, the pressure of the CO2 in storage is pabs = 58,6 bar at 21 °C 3.2 CO2-low-pressure installation fire extinguishing installation in which the CO2 is stored at low temperature, normally −19 °C to −21 °C 3.3 fill ratio mass of extinguishing medium related to the net capacity of a container expressed as kilograms per litre (kg/l) 3.4 connector component that joins two parts 3.5 Halocarbon Gas extinguishing agent that contains as primary components one or more organic compounds containing one or more of the elements fluorine, chlorine, bromine or iodine 3.6 Halocarbon Gas installation fire extinguishing installation in which the Halocarbon Gas is stored at ambient temperature SIST EN 12094-8:2006



EN 12094-8:2006 (E) 7 3.7 Inert Gas non liquefied gas or mixture of gases which extinguish the fire mainly by reducing the oxygen-concentration in the protected zone, like Argon, Nitrogen or mixtures of these gases with CO2 3.8 Inert Gas installation fire extinguishing installation in which the Inert Gas is stored at ambient temperature 3.9 type 1 connector flexible connector for connecting container valves to a manifold or check valve 3.10 type 2 connector flexible connector for use in distribution pipework downstream of the manifold/selector valve for the connection of parts which may move relative to each other 3.11 type 3 connector flexible connector for use in pneumatic pilot lines 3.12 type 4 connector flexible connector for use in distribution pipework downstream of the manifold/selector valve for the connection of non-moving parts which allow for dimensional adjustments 3.13 type 5 connector rigid connector for connecting containers to a manifold 3.14 working pressure pressure at which the component is used in the system 4 Requirements 4.1 General design Metal parts of connectors shall be made of stainless steel, copper, copper alloy or corrosion-protected steel (e.g. galvanized). All materials shall be resistant to media with which they come into contact. The type of connectors shall be specified by the manufacturer. Connectors shall be designed so that their function cannot be adversely affected by ageing or environmental influences. Non-metallic materials and elastomers shall be selected to be stable and not alter their performance over the working life recommended by the manufacturer. Connectors shall be specified by the manufacturer for working pressure at least in accordance with Table 1. Connectors may be specified by the manufacturer for use in systems with reduced and controlled pressure only. SIST EN 12094-8:2006



EN 12094-8:2006 (E) 8 Connectors shall be specified by the manufacturer for bursting pressure of at least three times the working pressure according to Table 1. The minimum bending radius of flexible connectors shall be specified by the manufacturer. The maximum angle of deflection of flexible connectors may be specified by the manufacturer. Table 1 — Working pressure Working pressure
in bar Type CO2-high-pressure component CO2-low-pressure component Inert Gas component Halocarbon Gas component Type 1 connector 140 not applicable see NOTE 1 see NOTE 1 Type 2 connector 60 25 As specified by the manufacturer see NOTE 2 Type 3 connector As specified by the manufacturer Type 4 connector 60 25 As specified by the manufacturer see NOTE 2 Type 5 connector 140 not applicable see NOTE 1 see NOTE 1 NOTE 1 This value is given as the developed pressure in the container at 50 °C with the highest fill ratio/superpressurization, where applicable, or – for components specified for use in systems with reduced and controlled pressure only – as specified by the manufacturer. NOTE 2 This value is given as the developed pressure in the container at 20 °C with the highest fill ratio/superpressurization, where applicable, or – for components specified for use in systems with reduced and controlled pressure only – as specified by the manufacturer.
4.2 Connection threads Connection threads shall comply with European Standards or International Standards for threads, e.g. ISO 7-1 or EN ISO 228-1. 4.3 Resistance to leakage Connectors shall not leak, and shall show no sign of damage which could impair proper function, when pressurized up to 1,5 times the working pressure according to Table 1 when tested in accordance with 5.4. 4.4 Resistance to bursting Connectors shall not burst when pressurized up to 3 times the working pressure according to Table 1 when tested in accordance with 5.5. 4.5 Resistance of type 2 and type 4 connectors to pressure and heat NOTE Only for type 2 and type 4 connectors. Type 2 and type 4 connectors shall show no sign of damage which could impair proper function when tested in accordance with 5.6 at the pressure and temperature conditions given in Table 2 and shall not leak when subsequently tested in accordance with 5.4. SIST EN 12094-8:2006



EN 12094-8:2006 (E) 9 Table 2 — Test conditions for resistance of type 2 and type 4 connectors to pressure and heat Test condition Test pressure in bar Test temperature in °C CO2-low pressure component 25 600 CO2-high pressure component 60 600 Inert Gas component working pressure (see Table 1) 600 Halocarbon Gas component working pressure (see Table 1) 600
4.6 Resistance of type 2 and type 4 connectors to heat and cold shock NOTE Only for type 2 and type 4 connectors, used in CO2 systems. Type 2 and type 4 connectors shall show no sign of damage which could impair proper function when tested in accordance with 5.7 and shall not leak when subsequently tested in accordance with 5.4. 4.7 Resistance of flexible connectors to cold NOTE Not applicable for type 5 connectors. Flexible connectors shall show no visible sign of damage when tested in accordance with 5.8 and shall not leak when subsequently tested in accordance with 5.4. 4.8 Resistance of type 2 connectors to flexing NOTE Only for type 2 connectors. Type 2 connectors shall not leak when tested in accordance with 5.4 after being tested in accordance with 5.9. 4.9 Documentation 4.9.1 The manufacturer shall prepare and maintain documentation. 4.9.2 The manufacturer shall prepare installation and user documentation, which shall be submitted to the testing authority together with the sample(s). This documentation shall comprise at least the following: a) a general description of the component, including a list of its features and functions; b) a technical specification including: 1) the information mentioned in 4.1; 2) sufficient information to permit an assessment of the compatibility with other components of the system (if applicable e.g. mechanical, electrical or software compatibility); c) installation instructions including mounting instructions; d) operating instructions; e) maintenance instructions; f) routine testing instructions, if appropriate. SIST EN 12094-8:2006



EN 12094-8:2006 (E) 10 4.9.3 The manufacturer shall prepare design documentation, which shall be submitted to the testing authority together with the sample(s), except where the conditions of supply to the manufacturer make this impossible. This documentation shall include drawings, parts lists, block diagrams (if applicable), circuit diagrams (if applicable) and a functional description to such an extent that compliance with this document may be checked and that a general assessment of the design is possible. 5 Type test methods 5.1 Conditions The components shall be assembled for test as specified in the technical description. The tests shall be carried out at a temperature of (25 ± 10) °C, except when otherwise specified for a particular test. The tolerance for all test parameters is 5 %, unless otherwise stated. 5.2 Samples The manufacturer shall submit for tests three samples for type 1, type 3 and type 5 connectors, six samples for type 2 and five samples for type 4 connectors. One of these samples is needed for reference. If for type 2 or type 4 connectors the same materials and parts are used to provide a range of connectors, use six samples of 350 mm to 1 000 mm long. The sequence of tests is shown in Table 3 and is given by the numbers 1, 2, 3 etc. In the table. A, B etc. are the different samples.
SIST EN 12094-8:2006



EN 12094-8:2006 (E) 11 Table 3 — Order of tests Order of tests for type 1, type 3 and type 5type 2 and type 4 Tests Sample A Sample B Sample A Sample B Sample C Sample D a Sample E b 5.3 Compliance 1 1 1 1 1 1 1 5.4 Resistance to leakage - 2 and 4 c - 2 and 4 3 3 3 5.5 Resistance to bursting 2 - 2 - - - - 5.6 Resistance of type 2 and type 4 connectors to pressure and heat - - - - 2 - - 5.7 Resistance of type 2 and type 4 connectors to heat and cold shock - - - - - 2 a - 5.8 Resistance of flexible connectors to cold - 3 c - 3 - -
5.9 Resistance of type 2 connectors to flexing - - - - - - 2 b a only for CO2-components b only for type 2 connectors c not applicable for type 5 connectors
5.3 Compliance A visual and measurement check shall be made to determine whether the test samples correspond to the description in the technical literature (drawings, parts lists, description of functions, operating and installation instructions). 5.4 Test for resistance to leakage NOTE This test relates to the requirements of 4.3, 4.5, 4.6, 4.7 and 4.8. Connect the inlet of the sample to a hydraulic pressure supply and block the outlet. Vent the system and increase the pressure by (2 ± 1) bar/s up to the test pressure (50+) %. Maintain this pressure for a period of (1010+) min. At the end of this period release the hydraulic pressure and examine the sample for damage. 5.5 Test for resistance to bursting NOTE This test relates to the requirements of 4.4. Connect the inlet of the sample to a hydraulic pressure supply and block the outlet. Vent the system and increase the pressure at (5 ± 1) bar/s up to the test pressure (50+) %. Maintain this pressure for a period of (1010+) min. At the end of this period release the hydraulic pressure and examine the sample. SIST EN 12094-8:2006



EN 12094-8:2006 (E) 12 5.6 Test for resistance of type 2 and type 4 connectors to pressure and heat NOTE This test relates to the requirements of 4.5. Connect the sample to a vessel delivering an absolute pressure in accordance with Table 2. Block the outlet. Subject the sample to a temperature of (600 ± 30) °C in a furnace for a period of 10 min. Then pressurise the heated sample for (30 ± 5) s with gaseous CO2, nitrogen or air at the test pressure. Remove the sample from the furnace and allow it to cool at normal temperature and examine it visually. 5.7 Test for resistance of type 2 and type 4 connectors to heat and cold shock NOTE This test relates to the requirements of 4.6. Connect the sample to a CO2 vessel which incorporates a diptube and is capable of delivering liquid CO2 at an absolute pressure of (20 ± 1) bar. A 2 position, 3 port ball valve (by-pass-valve) shall be installed in the pipework between the vessel and the sample which allows the CO2 -flow from the vessel to be controlled. The nominal diameter of the pipework between the vessel and the by-pass-valve shall be at least 25 mm. The nominal diameter of the by-pass-valve and the connected pipe to the sample shall be 25 mm. The length of the connected pipe shall not exceed 1,1 m. In one position, the test position, the by-pass-valve allows the CO2 to pass through the sample. In the other position, the by-pass position, the outlet to the sample is closed and the CO2 -flow is diverted via appropriate pipework, which is dimensioned to reach a stable flow of liquid CO2 at the by-pass-valve within 30 s. At the outlet of the sample connect a nozzle with a 10 mm orifice. Subject the sample to a temperature of (600 ± 30) °C in a furnace for a period of (2010+) min. Just before completion of the heating period commence CO2 flow through the by-pass. Upon stabilization of liquid CO2 flow and completion of the heating period divert flow through the sample for a period of (10030+) s. Remove the sample from the furnace and allow it to cool at normal temperature and examine it visually. 5.8 Test for resistance of flexible connectors to cold NOTE This test relates to the requirements of 4.7. Condition the sample for (4 ± 1) h at (0220−−) °C. With the sample at – 20 °C bend to the minimum radius and maximum angle of deflection as specified by the manufacturer. If the maximum angle of deflection is not specified, bend the flexible connector along the whole length to the specified minimum radius. Then examine the sample for visible evidence of deterioration or damage. 5.9 Test for resistance of type 2 connectors to flexing NOTE This test relates to the requirements of 4.8. Use a bending rig to bend the sample around the minimum radius specified by the manufacturer. One bending cycle consists of bending the sample from straight to the maximum angle of deflection specified by the manufacturer (or, if not specified, to the maximum possible angle of deflection), and back to straight. Carry out 3 000 bending cycles. 6 Marking Connectors shall be marked with the following: a) manufacturer's name or trademark; SIST EN 12094-8:2006



EN 12094-8:2006 (E) 13 b) model designation;
c) working pressure; d) some mark(s) or code(s) (e.g. serial number or batch code), by which, at least, the date or batch and place of manufacture (if several places of manufacture) can be identified by the manufacturer. The marking shall be non-flammable, with exception of a) and c) when marked on the hose material, permanent and legible. NOTE The markings can be provided on a label permanently attached to each connector. Where the requirements of ZA.3 give the same information as above, the requirements of this clause have been met. 7 Evaluation of conformity 7.1 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. 7.2 Initial type testing 7.2.1 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 7.2.3 to 7.2.4. 7.2.2 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 SIST EN 12094-8:2006



EN 12094-8:2006 (E) 14 be changed by the modification, shall be subject to this initial type testing, except as described in 7.2.3 to 7.2.4. 7.2.3 Tests previously performed in accordance with the provisions of this European Standard may be taken into account providing that they were made to the same or a more rigorous test method under the same system of attestation of conformity on the same component or components of similar design, construction and functionality, such that the results are applicable to the component in question. NOTE Same system of attestation of conformity means testing by an independent third party under the responsibility of a product certification body which is now a notified product certification body. 7.2.4 Components may be grouped into families where one or more characteristics are the same for all components within that family or the test results are representative of all components within that family. In this case not all components of the family have to be tested for the purposes of the initial type testing. 7.2.5 Test samples shall be representative of the normal production. If the test samples are prototypes, they shall be representative of the intended future production and shall be selected by the manufacturer. NOTE In the case of prototypes and product certification body certification, this means that it is the manufacturer not the product certification body who is responsible for selecting the samples. During the initial inspection of the factory and of the factory production control (see 7.3), it is verified that the component continuously complies with the initial type testing samples. 7.2.6 If the technical documentation of the test samples does not give a sufficient ba
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