SIST EN 12094-4:2004
(Main)Fixed firefighting systems - Components for gas extinguishing systems - Part 4: Requirements and test methods for container valve assemblies and their actuators
Fixed firefighting systems - Components for gas extinguishing systems - Part 4: Requirements and test methods for container valve assemblies and their actuators
This document specifies requirements and describes test methods for container valve assemblies for CO2-high-pressure-, Inert Gas- or Halocarbon Gas-fire extinguishing systems, which include a container valve, an actuator and possibly a diptube.
This document specifies requirements and describes test methods for features of the component relevant only for its use in fire extinguishing installations.
Diptubes not assembled to the container valves are not covered by this standard.
NOTE Valve assemblies can be equipped with additional components (e.g. gauges and switches).
Ortsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 4: Anforderungen und Prüfverfahren für Behälterventilbaugruppen und zugehörige Auslöseeinrichtungen
Dieses Dokument legt Anforderungen fest und beschreibt und Prüfverfahren für Behälterventilbaugruppen für CO2-Hochdruck-, Inertgas- und Feuerlöschanlagen mit halogenierten Kohlenwasserstoffen fest, die aus Behälterventil, Auslöseeinrichtung und, wenn anwendbar, Tauchrohr bestehen.
Dieses Dokument legt Anforderungen fest und beschreibt Prüfverfahren nur für die Eigenschaften des Bauteils, die für dessen Einsatz in Feuerlöschanlagen wichtig sind.
Nicht in der Behälterventilbaugruppe integrierte Tauchrohre werden in dieser Norm nicht behandelt.
ANMERKUNG Behälterventilbaugruppen können mit zusätzlichen Bauteilen ausgerüstet sein (z. B. mit Messgeräten und Schaltern).
Installations fixes de lutte contre l'incendie - Eléments constitutifs pour installations d'extinction a gaz - Partie 4: Exigences et méthodes d'essai pour les vannes de réservoir et leurs déclencheurs
La présente Norme européenne spécifie les exigences et décrit les méthodes d'essai applicables aux vannes de réservoirs pour les systemes d'extinction d'incendie a CO2 haute pression, a gaz inerte ou a gaz halogéné, comprenant une vanne de réservoir, un déclencheur et, le cas échéant, un tube plongeur.
La présente Norme européenne spécifie les exigences et décrit les méthodes d'essai uniquement pour les caractéristiques de l'élément constitutif qui sont importantes pour son emploi dans des systemes d'extinction d'incendie.
Les tubes plongeurs non assemblés aux vannes de réservoirs ne sont pas couverts par la présente norme.
NOTE Les vannes peuvent etre équipées d'éléments supplémentaires (ex. manometres et pressostats).
Vgrajeni gasilni sistemi – Sestavni deli sistemov za gašenje s plinom – 4. del: Zahteve in preskusne metode za ventile in prožilne naprave na visokotlačnih rezervoarjih
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RNRWODþQLKUH]HUYRDUMLKOrtsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 4: Anforderungen und Prüfverfahren für Behälterventilbaugruppen und zugehörige AuslöseeinrichtungenInstallations fixes de lutte contre l'incendie - Eléments constitutifs pour installations d'extinction a gaz - Partie 4: Exigences et méthodes d'essai pour les vannes de réservoir et leurs déclencheursFixed firefighting systems - Components for gas extinguishing systems - Part 4: Requirements and test methods for container valve assemblies and their actuators13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 12094-4:2004SIST EN 12094-4:2004en,fr,de01-oktober-2004SIST EN 12094-4:2004SLOVENSKI
STANDARD
SIST EN 12094-4:2004
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12094-4July 2004ICS 13.220.20English versionFixed firefighting systems - Components for gas extinguishingsystems - Part 4: Requirements and test methods for containervalve assemblies and their actuatorsInstallations fixes de lutte contre l'incendie - Elémentsconstitutifs pour installations d'extinction à gaz - Partie 4:Exigences et méthodes d'essai pour les vannes deréservoir et leurs déclencheursOrtsfeste Brandbekämpfungsanlagen - Bauteile fürLöschanlagen mit gasförmigen Löschmitteln - Teil 4:Anforderungen und Prüfverfahren fürBehälterventilbaugruppen und zugehörigeAuslöseeinrichtungenThis European Standard was approved by CEN on 6 May 2004.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, 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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12094-4:2004: ESIST EN 12094-4:2004
EN 12094-4:2004 (E) 2 Contents page Foreword.3 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.7 4 Requirements.8 4.1 Compliance.8 4.2 General design.8 4.3 Connection threads.10 4.4 Function and ambient temperature.10 4.5 Resistance to internal pressure.10 4.6 Strength.11 4.7 Leakage.11 4.8 Operational reliability.11 4.9 Flow characteristics.11 4.10 Corrosion.11 4.11 Stress corrosion.11 4.12 Vibration resistance.11 4.13 Diptube.11 4.14 Operating force.12 4.15 Functional reliability.12 4.16 Manual powered actuators.12 4.17 Documentation.12 5 Test methods.13 5.1 Test conditions.13 5.2 Test samples and order of tests.13 5.3 Compliance.14 5.4 Function.14 5.5 Internal pressure.15 5.6 Strength.16 5.7 Leakage test for valves.16 5.8 Operational reliability.17 5.9 Temperature.17 5.10 Flow characteristics.17 5.11 Corrosion.20 5.12 Stress corrosion.21 5.13 Vibration.21 5.14 Diptube.21 5.15 Operating force and functional reliability.22 6 Marking and data.22 6.1 General.22 6.2 Valve assemblies.22 7 Evaluation of conformity.23 7.1 General.23 7.2 Initial type testing.23 7.3 Factory production control (FPC).24 Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or other provisions of EU Directives.28 Bibliography.32
SIST EN 12094-4:2004
EN 12094-4:2004 (E) 3 Foreword This document (EN 12094-4:2004) 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 January 2005, and conflicting national standards shall be withdrawn at the latest by July 2007. 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 89/106/EEC. For relationship with EU Directive, see informative annex ZA, which is an integral part of this document. This part of EN 12094 is one of a number of European Standards prepared by CEN/TC 191 covering components for gas extinguishing systems. They are included in a series of European Standards planned to cover: gas extinguishing systems (EN 12094) sprinkler systems (EN 12259) 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 (prEN 14816) The following parts of this European Standard are planned: 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 41): Requirements and test methods for container valve assemblies and actuators Part 5: Requirements and test methods for high and low pressure selector valves and their actuators for CO2 systems Part 6: Requirements and test methods for non-electrical disable devices for CO2 systems Part 7: Requirements and test methods for nozzles for CO2 systems
1) Under preparation. SIST EN 12094-4:2004
EN 12094-4:2004 (E) 4 Part 8: Requirements and test methods for flexible connectors for CO2 systems 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 171): Pipe hangers Part 201): Requirements and test methods for 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1) Under preparation.
SIST EN 12094-4:2004
EN 12094-4:2004 (E) 5 Introduction It has been assumed in the preparation of this document that the execution of its provisions is entrusted to appropriately qualified and experienced people. All pressure data in this document are given as gauge pressures in bar, unless otherwise stated. NOTE 1 bar = 105 N/m2 = 100 kPa. SIST EN 12094-4:2004
EN 12094-4:2004 (E) 6
1 Scope This document specifies requirements and describes test methods for container valve assemblies for CO2-high-pressure-, Inert Gas- or Halocarbon Gas-fire extinguishing systems, which include a container valve, an actuator and possibly a diptube. This document specifies requirements and describes test methods for features of the component relevant only for its use in fire extinguishing installations. Diptubes not assembled to the container valves are not covered by this standard. NOTE Valve assemblies can be equipped with additional components (e.g. gauges and switches). 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. EN 849, Transportable gas cylinders - Cylinder valves - Specification and type testing. EN 60529, Degrees of protection provided by enclosures (IP-Codes) (IEC 60529:1989). EN 60068-2-6, Environmental testing- Part 2: Tests - Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995 + Corrigendum 1995). EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000). EN ISO 4126-2, Safety devices for protection against excessive pressure - Part 2: Bursting disc safety devices (ISO 4126-2:2003). EN ISO 9001:2000, Quality management systems – Requirements (ISO 9001:2000). ISO 7-1, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation. SIST EN 12094-4:2004
EN 12094-4:2004 (E) 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 check valve valve which is installed between container and manifold and which permits flow only in one direction 3.2 container valve valve which retains the extinguishing medium in a container, releasing it when actuated 3.3 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 3.4 CO2-low-pressure installation fire extinguishing installation in which the CO2 is stored at low temperature, normally –19 °C to –21 °C 3.5 diptube pipe, connected to a container valve inlet, which allows the discharge of the liquid extinguishing medium out of a container with the valve at the top 3.6 fill ratio mass of extinguishing medium related to the net capacity of a container, expressed as kilograms per litre 3.7 Halocarbon Gas extinguishing agent which contains as primary components one or more organic compounds containing one or more of the elements fluorine, chlorine, bromine or iodine 3.8 Halocarbon Gas installation fire extinguishing installation in which the Halocarbon Gas is stored at ambient temperature 3.9 Inert Gas non liquefied gas or mixture of gases which extinguishes the fire mainly by reducing the oxygen-concentration in the protected zone, e.g. Argon, Nitrogen or CO2 or mixtures of these gases 3.10 Inert Gas installation fire extinguishing installation in which the Inert Gas is stored at ambient temperature 3.11 resistance coefficient value for the calculation of the pressure drop in a component under flow conditions 3.12 type 1 valve valve without pressure relief device 3.13 type 2 valve valve with pressure relief device relieving other than into the valve discharge outlet SIST EN 12094-4:2004
EN 12094-4:2004 (E) 8 3.14 type 3 valve valve with pressure relief device relieving into the valve discharge outlet WARNING — Type 3 valves permit release of extinguishing media into the protected zone when pressure relief occurs. As this takes place without prior alarms a danger to personnel within the protected zone may arise. 3.15 working pressure pressure at which the component is used in the system 4 Requirements 4.1 Compliance The test sample shall comply with the technical description (drawings, parts list, description of functions, operating and installation instructions) when checked in accordance with 5.3. 4.2 General design 4.2.1 The valve body and its internal parts and mechanical parts of the actuator except seals shall be made of metal. Metal parts of the component shall be made of corrosion resistant materials, e.g. stainless steel, copper, copper alloy or corrosion-protected steel (e.g. galvanized steel). The operation of the valve and actuator shall not be adversely affected during the tests, except the strength test. NOTE prEN 12094-20 requires that pressure gauges and pressure switches are able to be checked separately. 4.2.2 Container valve assemblies shall be specified by the manufacturer for use at pressures at least corresponding to the working pressure as given in Table 1, which is taken as the basis for the tests. Table 1 — Working pressure working pressure in bar Component CO2-high-pressure component Inert Gas component Halocarbon Gas component Container valve 140 see a see a Pneumatic actuator As specified by the manufacturer a This value is given as the developed pressure in the container at 50 °C, or at the maximum service temperature recommended by the manufacturer, whichever is the higher, with the highest fill ratio/superpressurization, where applicable. NOTE Actuators may have a different working pressure than container valves.
4.2.3 The manufacturer shall specify the free cross-sectional area of the minimum flow way of the valve. In addition the manufacturer may specify the flow characteristics of the component either as an equivalent length or as a flow resistance coefficient. 4.2.4 The manufacturer shall specify the smallest container, the related minimum and maximum fill ratio and, if applicable, the related superpressurization the component shall be used for. 4.2.5 Where the component is assembled with a diptube, the diptube shall be made of metal, rigid or flexible, and shall be fixed to the container valve by mechanical means, e.g. a threaded connection. The geometry of the inlet of the diptube and the length of the diptube related to the container shall be specified SIST EN 12094-4:2004
EN 12094-4:2004 (E) 9 by the manufacturer. Torque and sealant shall be specified, if relevant. Rigid curved diptubes intended for use in containers not in the vertical position shall be provided with a means of alignment, via a mark on the valve, indicating the correct attitude for installation. 4.2.6 Where the component incorporates a pneumatic actuator, the manufacturer shall specify nominal, maximum and minimum triggering pressure and the minimum duration of the triggering pressure for the pressure supply. 4.2.7 Where the component incorporates a gravity powered actuator, the manufacturer shall specify the mass and the drop distance. 4.2.8 Where the component incorporates an electric powered actuator, the manufacturer shall specify the nominal, maximum and minimum voltage and current and the minimum duration of triggering signal. Electric powered actuators shall be specified for continuous duty. 4.2.9 Where the component incorporates a pyrotechnic powered actuator, the manufacturer shall specify the: minimum all-fire current with respect to the kind of electrical connection (serial or parallel) and its minimum duration and the form of the signal; and maximum monitoring current; and range of triggering voltage; and nominal resistance; and maximum storage time under specified storage conditions; and maximum life time under normal stand-by conditions (50 °C and 70 % relative humidity) or higher values specified by the manufacturer. In addition data shall be provided by the manufacturer to show that: a) the failure rate of the device in the energy transfer path does not exceed 1 in 10 000 at the recommended firing current; and b) actuators will achieve the required power output after being subjected to a 30 day ageing test at a test temperature of (60 ± 2) °C; and c) actuators will achieve the required power output at the end of their service life as recommended by the manufacturer. 4.2.10 Electric parts of the actuator shall be in accordance with at least class IP 54 of EN 60529 and pyrotechnic elements as per class IP X7. 4.2.11 Provision should be made for testing the actuator without actually releasing the extinguishing media. NOTE If the component does not include such a test facility, prEN 12094-20 requires that the system includes a test facility which can be used to separately test each group of containers actuated at the same time, to verify that the necessary type and level of power is provided. 4.2.12 Where a pressure relief device is incorporated as part of a container valve, it shall be rated in accordance with European regulations or in their absence with national requirements valid in the place of use of the component. The integrity of the device, or in the case of a component family (see 7.1) the device with the highest rating, shall be maintained throughout the following tests: high temperature in accordance with 5.9.3; low temperature in accordance with 5.9.2; SIST EN 12094-4:2004
EN 12094-4:2004 (E) 10 vibration in accordance with 5.13; corrosion in accordance with 5.11. The operating pressure shall be verified in accordance with European regulations or in their absence with national requirements valid in the place of use of the component. 4.2.13 The manufacturer shall specify design details (e.g. threads, type of sealing) of all connections for accessories such as pressure gauges and pressure switches. 4.2.14 For Inert Gas or Halocarbon Gas components, the manufacturer may specify service temperatures below – 20 °C, and/or above + 50 °C. 4.2.15 Container valve assemblies shall have operating times (i.e. time between triggering of the actuator and fully open position of the valve) of 2 s maximum, when tested in accordance with 5.4. 4.2.16 Where the type 1 container valve incorporates a rupture disc for the activation of the valve by an actuator, the rupture disc shall be designed for at least 1,5 times the valve working pressure in accordance with Table 1. 4.2.17 Where the type 2 container valve incorporates a rupture disc for the activation of the valve by an actuator, the rupture disc shall be specified by the manufacturer in such way that the minimum rupture pressure (nominal value with minus tolerance) of the rupture disc is at least 5 %, subject to a minimum value of 10 bar, higher than the maximum rupture pressure (nominal value with plus tolerance) of the pressure relief device, or 1,5 times the valve working pressure in accordance with Table 1, whichever is the higher. 4.2.18 Where the type 3 container valve incorporates a common rupture disc for the activation of the valve by an actuator and pressure relief, the rupture disc shall be specified by the manufacturer for at least 1,15 times the valve working pressure in accordance with Table 1. WARNING — Type 3 valves permit release of extinguishing media into the protected zone when pressure relief occurs. As this takes place without prior alarms a danger to personnel within the protected zone may arise. 4.3 Connection threads Container and discharge outlet connection threads shall comply with European Standards or International Standards, e.g. ISO 7-1 and EN ISO 228-1. 4.4 Function and ambient temperature 4.4.1 Container valves shall remain in their fully open position at a maximum differential pressure between inlet and outlet of 3 bar. Container valve assemblies where the status of the valve depends on the differential pressure between inlet and outlet shall be tested in accordance with 5.4.3. 4.4.2 The container valve assemblies shall operate in an ambient temperature range encompassing - 20 °C to + 50 °C, or the service temperature range specified by the manufacturer, when tested as described in 5.9.2 and 5.9.3. 4.5 Resistance to internal pressure The valve, except any rupture disc, shall not suffer any permanent deformation when tested as described in 5.5.2. Any rupture disc may deform but shall not rupture. After this, the valve shall not leak when tested as described in 5.5.4, i.e. no bubbles shall appear in one minute. A pneumatic actuator shall not suffer any permanent deformation when tested as described in 5.5.3. The actuator shall not leak more than 20 ml (measured at atmospheric pressure) in (300 010+) s, when tested as described in 5.5.5. SIST EN 12094-4:2004
EN 12094-4:2004 (E) 11 4.6 Strength Actuators intended to be pressurized by external pilot pressure sources shall not burst when subjected to a test pressure of three times their working pressure, when tested as described in 5.6. The parts of the valve assembly which are pressurized with the cylinder pressure shall meet the hydraulic pressure test requirements of EN 849. 4.7 Leakage The loss of content from the valve assembly and the container shall not exceed 0,5 % of the actual net charge mass of the specified smallest appropriate container, when tested as described in 5.7. Additionally in the case of superpressurization the loss of pressure from the specified smallest appropriate container filled with minimum and maximum fill ratio shall not exceed 0,5 %, when tested as described in 5.7. 4.8 Operational reliability There shall be no deterioration of performance when a component is tested as described in 5.8.2 or 5.8.3 as applicable. During operation no part of the component shall be ejected outside the confines of the component or into the discharge pipework. Any rupture discs in components tested in accordance with 5.8.3 shall comply with EN ISO 4126-2. 4.9 Flow characteristics 4.9.1 The free cross-sectional area of the minimum flow way of the valve shall be within ± 10 % of the value specified by the manufacturer, when verified by the measurement check described in 5.3. 4.9.2 If the manufacturer has specified the flow characteristics of the component as an equivalent length or as a flow resistance coefficient, the figure given by the manufacturer shall be within ± 10 % of the value determined in accordance with 5.10. NOTE The specification of the flow characteristic is optional. 4.10 Corrosion The valve assembly shall operate satisfactorily when tested in accordance with 5.4 after being subjected to the corrosion test as described in 5.11. 4.11 Stress corrosion If copper alloy parts are used in the component they shall be tested as described in 5.12 and shall not crack. 4.12 Vibration resistance The valve assembly shall not operate or be damaged when tested as described in 5.13. Where the component incorporates a diptube, the diptube shall not fracture, become loose or detach during the test. 4.13 Diptube 4.13.1 Where the component incorporates a diptube, the length and configuration of the diptube shall be such that the volume of water remaining in the cylinder at the end of the discharge is less than 5 % of the internal volume of the cylinder when tested as described in 5.14. SIST EN 12094-4:2004
EN 12094-4:2004 (E) 12 4.13.2 For containers in a vertical position with the valve at the top, the above requirement is fulfilled without testing, when the highest point of the inlet of the diptube is not more than two times the internal diameter of the diptube above the base of the container, measured straight below the diptube inlet, and the flow to the inlet of the diptube is not hindered. 4.14 Operating force The effective force of the actuator shall be at least two times and in the case of pyrotechnic actuators at least three times the force necessary to open the valve within the required operating time under the most severe conditions, when the component is tested as specified in 5.15. 4.15 Functional reliability 4.15.1 There shall be no deterioration of performance when a component incorporating an electric powered actuator is tested as described in 5.15. The valve shall operate within 2 s and open fully at the nominal, maximum and minimum specified voltage. 4.15.2 There shall be no deterioration of performance when a pneumatic powered actuator is tested as described in 5.15. The valve shall operate within 2 s and open fully at the nominal, maximum and minimum specified pressure. 4.15.3 There shall be no deterioration of performance when a gravity powered actuator is tested as described in 5.15. The valve shall operate within 2 s. The free travel of the falling mass shall not be inhibited and there shall be at least 50 mm clearance beyond t
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