SIST EN 12094-5:2006
(Main)Fixed firefighting systems - Components for gas extinguishing systems - Part 5: Requirements and test methods for high and low pressure selector valves and their actuators
Fixed firefighting systems - Components for gas extinguishing systems - Part 5: Requirements and test methods for high and low pressure selector valves and their actuators
This European Standard specifies requirements and describes test methods for selector valves and their actuators used in CO2 -, Inert Gas- or Halocarbon gas fire extinguishing systems.
Ortsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 5: Anforderungen und Prüfverfahren für Hoch- und Niederdruck-Bereichsventile und zugehörige Auslöseeinrichtungen
Dieses Dokument legt Anforderungen fest und beschreibt Prüfverfahren für Bereichsventile und deren
Auslöseeinrichtungen, die in CO2-, Inertgas-Feuerlöschanlagen und Feuerlöschanlagen mit halogenierten
Kohlenwasserstoffen eingesetzt werden.
Installations fixes de lutte contre l'incendie - Éléments constitutifs des installations d'extinction a gaz - Partie 5: Exigences et méthodes d'essai pour vannes directionnelles haute et basse pression et leurs déclencheurs
La présente Norme européenne spécifie les exigences et décrit les méthodes d'essais applicables aux vannes directionnelles et a leurs déclencheurs utilisés dans les installations de lutte contre l'incendie au CO2, a gaz inerte ou a gaz inhibiteur.
Vgrajeni gasilni sistemi – Sestavni deli sistemov za gašenje s plinom – 5. del: Zahteve in preskusne metode za visokotlačne in nizkotlačne sortirne ventile in njihova sprožila
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ortsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 5: Anforderungen und Prüfverfahren für Hoch- und Niederdruck-Bereichsventile und zugehörige AuslöseeinrichtungenInstallations fixes de lutte contre l'incendie - Éléments constitutifs des installations d'extinction a gaz - Partie 5: Exigences et méthodes d'essai pour vannes directionnelles haute et basse pression et leurs déclencheursFixed firefighting systems - Components for gas extinguishing systems - Part 5: Requirements and test methods for high and low pressure selector valves and their actuators13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 12094-5:2006SIST EN 12094-5:2006en01-julij-2006SIST EN 12094-5:2006SLOVENSKI
STANDARDSIST EN 12094-5:20011DGRPHãþD
SIST EN 12094-5:2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12094-5April 2006ICS 13.220.20Supersedes EN 12094-5:2000
English VersionFixed firefighting systems - Components for gas extinguishingsystems - Part 5: Requirements and test methods for high andlow pressure selector valves and their actuatorsInstallations fixes de lutte contre l'incendie - Élémentsconstitutifs des installations d'extinction à gaz - Partie 5:Exigences et méthodes d'essai pour vannes directionnelleshaute et basse pression et leurs déclencheursOrtsfeste Brandbekämpfungsanlagen - Bauteile fürLöschanlagen mit gasförmigen Löschmitteln - Teil 5:Anforderungen und Prüfverfahren für Hoch- undNiederdruck-Bereichsventile und zugehörigeAuslöseeinrichtungenThis 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 12094-5:2006: ESIST EN 12094-5:2006
EN 12094-5:2006 (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 and flanges.9 4.3 Function and ambient temperatures.9 4.4 Resistance to internal pressure and leakage.9 4.5 Resistance to bursting.9 4.6 Operational reliability.9 4.7 Flow characteristics.9 4.8 Resistance to corrosion.10 4.9 Resistance to stress corrosion.10 4.10 Vibration resistance.10 4.11 Operating force.10 4.12 Documentation.10 5 Type test methods.11 5.1 Conditions.11 5.2 Samples and order of tests.11 5.3 Compliance.12 5.4 Test for function.12 5.5 Test for resistance to internal pressure and leakage.13 5.6 Test for resistance to bursting.14 5.7 Test for operational reliability.14 5.8 Test for operation under temperature conditions.14 5.9 Test for flow characteristic data.14 5.10 Test for resistance to corrosion.17 5.11 Test for resistance to stress corrosion.18 5.12 Vibration test.18 5.13 Test for operating force.19 6 Marking.19 7 Evaluation of conformity.20 7.1 General.20 7.2 Initial type testing.20 7.3 Factory production control (FPC).21 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive.25 ZA.1 Scope and relevant characteristics.25 ZA.2 Procedure for the attestation of conformity of selector valves and their actuators.26 ZA.3 CE Marking and labelling.27 Bibliography.29
SIST EN 12094-5:2006
EN 12094-5:2006 (E) 3 Foreword This European Standard (EN 12094-5:2006) 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 12094-5:2000. 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 12094-5:2006
EN 12094-5:2006 (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, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer-land and United Kingdom. SIST EN 12094-5:2006
EN 12094-5:2006 (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 12094-5:2006
EN 12094-5:2006 (E) 6 1 Scope This European Standard specifies requirements and describes test methods for selector valves and their actua-tors used in CO2 -, Inert Gas- or Halocarbon gas fire extinguishing systems. 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 60068-2-6:1995, Environmental testing — Part 2: Tests — Tests Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995 + Corrigendum 1995) 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 actuator component which causes a valve to operate 3.2 closing time time for the sealing device of the valve to move from its fully open position to its fully closed position 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 fill ratio mass of extinguishing medium related to the net capacity of a container expressed as kilograms per litre (kg/l) 3.6 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 3.7 Halocarbon Gas installation fire extinguishing installation in which the Halocarbon Gas is stored at ambient temperature 3.8 Inert Gas non liquefied gas or mixture of gases which extinguish the fire mainly by reducing the oxygen-concentration in the protected zone, such as Argon, Nitrogen or mixtures of these gases with CO2 SIST EN 12094-5:2006
EN 12094-5:2006 (E) 7 3.9 Inert Gas installation fire extinguishing installation in which the Inert Gas is stored at ambient temperature 3.10 opening time time for the sealing device of the valve to move from its fully closed position to its fully open position 3.11 selector valve valve which releases the extinguishing media to the pipework for a flooding zone when activated 3.12 resistance coefficient value for the calculation of the pressure drop in a component under two-phase flow condition 3.13 two-phase flow partial change of phase of a fluid from liquid to vapour under flowing conditions 3.14 working pressure pressure at which the component is used in the system 4 Requirements 4.1 General design 4.1.1 The valve body and internal parts except seals shall be made of metal. All mechanical parts of the actuator shall be made of metal. Operating moving parts shall be manufactured of stainless steel, copper, copper alloy or corrosion-protected steel (e.g. galvanised steel). All materials shall be resistant to media with which they come into contact. 4.1.2 The open and closed position of the selector valve shall be clearly indicated by mechanical means at the valve or the actuator and shall be defined by mechanical limitation of the movement of the valve or the actuator. 4.1.3 Selector valves and actuators shall be designed for a maximum opening time of 3 s. CO2-low pressure selector valves and actuators shall be designed for a maximum opening time of 3 s and for a maximum closing time of 3 s. 4.1.4 Selector valves shall be designed such that the closed position may be left only by activation of the actuators or by manual means. The closed position of CO2-low pressure selector valves shall not be maintained only by friction. 4.1.5 Selector valves and pneumatic actuators shall be specified by the manufacturer for working pressure according to Table 1. Selector valves may be specified by the manufacturer for use in systems with reduced and controlled pressure only. SIST EN 12094-5:2006
EN 12094-5:2006 (E) 8 Table 1 — Working pressure Working pressure in bar Component CO2-high-pressure component CO2-low-pressure component Inert Gas component Halocarbon Gas component Selector valve 140 25 see NOTE see NOTE Pneumatic actuator As specified by the manufacturer NOTE 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 1 Actuators may have a different working pressure than selector valves. NOTE 2 Guidelines for planning and installation may require that a manual emergency operating device, if applicable, at the selector valve does not override pre-warning and time delay. 4.1.6 The pressure of the housing of the selector valve shall not exceed the working pressure in any operat-ing position. NOTE Cold liquid CO2 locked in a closed CO2-low pressure selector valve after flooding may cause pressures ex-ceeding the working pressure when the temperature of the CO2 and the valve goes up again. 4.1.7 The test samples shall comply with the technical description as specified in 4.12 (drawings, parts lists, description of functions, operating and installation instructions) when checked in accordance with 5.3. 4.1.8 Selector valves and actuators shall be designed so that during operation no part of the valve or its components shall be ejected outside the confines of the valve or into the discharge pipework. 4.1.9 The flow characteristics of the valve shall be specified by the manufacturer either as an equivalent length or as a flow-resistance coefficient. 4.1.10 The nominal and the internal diameter of the pipes at the inlet and the outlet of the valve shall be specified by the manufacturer. 4.1.11 The free flow cross sectional area of CO2 selector valves shall be not less than 80 % of the area given by the inlet pipe internal diameter. 4.1.12 Where the component incorporates a pneumatic actuator, the manufacturer shall specify nominal, maximum and minimum figures for the pressure supply. 4.1.13 Where the component incorporates a gravity powered actuator, the manufacturer shall specify the mass and the drop distance. 4.1.14 Where the component incorporates an electric powered actuator, the manufacturer shall specify nominal, maximum and minimum figures for voltage and current and the electrical data giving 50 % of the force achieved for nominal electrical conditions (voltage and current). Electric powered actuators shall be specified for continuous duty. 4.1.15 The component shall be specified by the manufacturer either for installation on walls only or for instal-lation on both walls and machinery. 4.1.16 For Inert gas and Halocarbon gas selector valves not specified for use in systems with reduced and controlled pressure only the manufacturer shall specify the maximum developed pressure in the container at 20 °C with the highest fill ratio/superpressurization, as applicable. SIST EN 12094-5:2006
EN 12094-5:2006 (E) 9 4.2 Connection threads and flanges Connections threads shall comply with European Standards or International Standards for threads, e.g. ISO 7-1 or EN ISO 228-1 and for flanges, e.g. EN 1092 or ISO 7005. Inlet and outlet connections of the valve shall be of the same size in diameter. 4.3 Function and ambient temperatures The selector valve and actuator shall operate in an ambient temperature range encompassing - 20 °C to + 50 °C, when tested in accordance with 5.4 and 5.8. NOTE Test temperature for CO2-low pressure selector valves in accordance with 5.8 is - 30 °C taking into account temperature drop during discharge. Selector valves and actuators shall have opening times of maximum 3 s, when tested in accordance with 5.4 and 5.8. CO2-low pressure selector valves with their actuators shall have times for opening and closing of 3 s maximum, when tested in accordance with 5.4 and 5.8. After being tested as described in 5.8.1 selector valves shall meet the requirements of 4.4 when tested as de-scribed in 5.5.2 at the test temperature defined in 5.8.1. After being tested as described in 5.8.2 selector valves shall meet the requirements of 4.4 when tested as de-scribed in 5.5.2 at the test temperature defined in 5.8.2. 4.4 Resistance to internal pressure and leakage The valve and, where applicable, the pneumatic actuator, shall not suffer any permanent deformation when tested as described in 5.5.1 at 1,5 times the working pressure. When subsequently tested as described in 5.5.2 the leakage shall not exceed 10 ml in the case of CO2-low pressure valves and 100 ml in the case of actuators and other valves in (100300+) s at atmospheric pressure. 4.5 Resistance to bursting The valve casing, closure mechanism and pressurised actuators shall not burst when subjected to a test pressure of three times the working pressure, when tested in accordance with 5.6. 4.6 Operational reliability There shall be no deterioration of performance when a selector valve and actuator is tested in accordance with 5.7. During operation no part of the valve or its components shall be ejected outside the confines of the valve or into the discharge pipework. After the operational reliability test, the components shall meet the requirements of 4.4 when tested as described in 5.5.2. 4.7 Flow characteristics 4.7.1 Except as stated in 4.7.2, the flow characteristic figures of the valves given by the manufacturer shall be in the accuracy range of ± 10 %, when tested in accordance with 5.9. 4.7.2 The test in accordance with 5.9 is not necessary when the following conditions are in place: the valve is a ball valve, and SIST EN 12094-5:2006
EN 12094-5:2006 (E) 10 the free flow cross sectional area of the selector valves is not less than 100 % of the area given by the inlet pipe internal diameter, and the flow characteristic data of the valves given by the manufacturer represent at least a pipe or a pressure drop of a pipe with the length of the component. 4.8 Resistance to corrosion After being subjected to the corrosion test as described in 5.10, the valve assemblies shall operate satisfacto-rily when tested as described in 5.4 and shall meet the requirements of 4.4 when tested as described in 5.5.2. 4.9 Resistance to stress corrosion Any copper alloy part used in the valve assembly shall be tested in accordance with 5.11 and shall not crack when tested. 4.10 Vibration resistance The valve assembly including accessories and actuator shall not operate or be damaged when tested in accordance with 5.12. No deterioration or detachment of parts shall occur during the test. After the vibration test, the valve assemblies shall operate satisfactorily when tested as described in 5.4 and shall meet the requirements of 4.4 when tested as described in 5.5.2. 4.11 Operating force The effective force of the actuator shall be at least twice the force required to operate the valve, when the valve assembly is tested in accordance with 5.13. 4.12 Documentation 4.12.1 The manufacturer shall prepare and maintain documentation. 4.12.2 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 sys-tem (if applicable e.g. mechanical, electrical or software compatibility); c) installation instructions including mounting instructions; d) operating instructions; e) maintenance instructions; f) routine testing instruction, if appropriate. 4.12.3 The manufacturer shall prepare design documentation, which shall be submitted to the testing author-ity 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
SIST EN 12094-5:2006
EN 12094-5:2006 (E) 11 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 tested assembled as recommended for installation by the manufacturer. The tests shall be carried out at a temperature of (25 ± 10) °C, except when otherwise stated. The tolerance for all test parameters is 5 %, unless otherwise stated. 5.2 Samples and order of tests For the tests of one selector valve the manufacturer shall submit two samples. For the tests of a design series with two sizes of selector valves the manufacturer shall submit one sample of each size. The order of tests is shown in Table 2 (sample A and B). For the tests of a design series with more than two selector valves the manufacturer shall submit three samples with three different diameters. The order of tests is shown in Table 2. NOTE It is recommended to use the bottom, top and middle of the range of sizes. The individual tests may be done with different test samples and the tests may be done in other sequences than the sequence shown in Table 2, except when a special sequence is explicitly required in this European Standard. SIST EN 12094-5:2006
EN 12094-5:2006 (E) 12 Table 2 — Order of tests Order of tests for Tests methods sample A sample B sample C 5.3 Compliance 1 1 1 5.4 Test for function 3/9/14 3 3 5.5 Test for resistance to internal pressure 2 2 2 5.5.2 Leakage test 10/12/15 5.6 Test for resistance to bursting 16 5.7 Test for operational reliability 11 5.8 Test for operation under temperature conditions
5.8.1 Low temperature test (including leakage test) 6 6 a 6 a 5.8.2 High temperature test (including leakage test) 5 5 a 5 a 5.9 Test for flow characteristic data 4 a 4 a 4 5.10 Test for resistance to corrosion 13 5.11 Test for resistance to stress corrosion 8 5.12 Vibration test 8 5.13 Test for operating force 7 7 a 7 a A = largest cross section B = medium cross section C = smallest cross section ------------ a The need for these tests depends on design, e.g. seal materials, flow way design.
5.3 Compliance NOTE This test relates to the requirements of 4.1.7. 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 function NOTE This test relates to the requirements of 4.3, 4.8 and 4.10. 5.4.1 The test pressure is for CO2-low-pressure selector valves (20 ± 3) bar; for CO2-high-pressure selector valves (60 ± 5) bar; for other than CO2 selector valves not specified for use in systems with reduced and controlled pressure only the pressure developed in the container at 20 °C; for other than CO2 selector valves specified for use in systems with reduced and controlled pressure only the specified working pressure. SIST EN 12094-5:2006
EN 12094-5:2006 (E) 13 5.4.2 The following cycle shall be carried out five times: a) Apply the test pressure to the inlet port of the selector valve assembly using gaseous CO2, air or nitrogen. The outlet shall be connected to a pipe with a length of (0,5 ± 0,1) m of the nominal diameter and a nozzle (5,003+) mm diameter. b) After 5 s open the selector valve with the appropriate actuator. Check the correct function of the sample and measure the opening time. c) In the case of CO2-low pressure selector valve, close the sample after (10 ± 5) s with the appropriate
actuator. Check the correct function of the sample and measure the closing time. In the case of other
selector valves, after (10 ± 5) s depressurise the sample to a value below 5 bar and close it manually. d) Allow the test facility and the test sample to cool to the normal test temperature. During each test cycle the supply pressure to the valve shall not drop below: 15 bar for CO2-low-pressure selector valves, 50 bar for CO2-high-pressure selector valves, and 80 % of the test pressure for other selector valves. 5.4.3 Fit replacement parts at the end of each cycle on test samples in which parts are designed to be
destroyed on normal operation of the valve. 5.4.4 The relevant characteristics of the test facility shall be as follows: a) pipework between control valve of the test rig and the test sample shall be as specified and provided by the manufacturer. If there are no data provided, the test pipe shall have the following dimensions: nominal size DN 50; length (2 ± 0,1) m; b) control valve quick opening valve upstream of the test pipe to achieve the test pressure at the test sample within 1 s. 5.5 Test for resistance to internal pressure and leakage NOTE This test relates to the requirements of 4.3, 4.4, 4.6, 4.8 and 4.10. 5.5.1 The valve in its closed position shall be connected via the inlet to a suitable hydraulic pressure supply. Provision for venting shall be available.
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