1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58systems Part 5: Requirements and test methods for high and low pressure selector valves and their a
2、ctuatorsThe European Standard EN 12094-5:2006 has the status of a British StandardICS 13.220.20Fixed firefighting systems Components for gas extinguishing BRITISH STANDARDBS EN 12094-5:2006BS EN 12094-5:2006This British Standard was published under the authority of the Standards Policy and Strategy
3、Committee on 30 June 2006 BSI 2006ISBN 0 580 48805 5request to its secretary.Additional informationIn 4.1.9, Figures ZA.1 and ZA.3 the term flow resistance coefficient is used. This characteristic, which is the friction or resistance that the valve, pipe or fitting presents to the flow of fluid, is
4、also referred to in the UK as pressure loss coefficient.Subclause 5.9 currently requires tests on selector valves using both gas and water. For the next revision of the European Standard the UK will request that all selector valves are flow tested using only water to determine the flow resistance co
5、efficient. In addition to simplifying the text, this will have the added benefit of avoiding an unnecessary discharge of the extinguishant to the environment. It should be noted that the coefficients used for the pipe fittings in the EN 12094 series were all determined using water.Cross-referencesTh
6、e British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standar
7、ds Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an
8、 inside front cover, the EN title page, pages 2 to 29 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this subcommittee can be obtained on
9、present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official Engli
10、sh language version of EN 12094-5:2006. It supersedes BS EN 12094-5:2001 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee FSH/18, Fixed firefighting systems, to Subcommittee FSH/18/6, Gaseous extinguishing media and systems, which has the responsibility
11、 to: aid enquirers to understand the text;EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12094-5April 2006ICS 13.220.20 Supersedes EN 12094-5:2000 English VersionFixed firefighting systems - Components for gas extinguishingsystems - Part 5: Requirements and test methods for high andlow pressure s
12、elector valves and their actuatorsInstallations fixes de lutte contre lincendie - lmentsconstitutifs des installations dextinction gaz - Partie 5:Exigences et mthodes dessai pour vannes directionnelleshaute et basse pression et leurs dclencheursOrtsfeste Brandbekmpfungsanlagen - Bauteile frLschanlag
13、en mit gasfrmigen Lschmitteln - Teil 5:Anforderungen und Prfverfahren fr Hoch- undNiederdruck-Bereichsventile und zugehrigeAuslseeinrichtungenThis 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 condi
14、tions 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 off
15、icial 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, Be
16、lgium, 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 STANDARDIZ
17、ATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12094-5:2006: EEN 12094-5:2006 (E) 2 Contents Page Foreword
18、3 Introduction5 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 flanges9 4.3 Function and ambient temperatures .9 4.4 Resistance to internal pressure and leakage9 4.5 Resistance to bursting 9 4.6 Operational reliability
19、.9 4.7 Flow characteristics 9 4.8 Resistance to corrosion .10 4.9 Resistance to stress corrosion10 4.10 Vibration resistance10 4.11 Operating force .10 4.12 Documentation10 5 Type test methods 11 5.1 Conditions .11 5.2 Samples and order of tests 11 5.3 Compliance12 5.4 Test for function12 5.5 Test f
20、or resistance to internal pressure and leakage.13 5.6 Test for resistance to bursting.14 5.7 Test for operational reliability14 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
21、corrosion .18 5.12 Vibration test .18 5.13 Test for operating force19 6 Marking 19 7 Evaluation of conformity 20 7.1 General 20 7.2 Initial type testing20 7.3 Factory production control (FPC)21 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction
22、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 labelling27 Bibliography.29 EN 12094-5:2006 (E) 3 Foreword This European Standard (EN 12094-5:2006) has been prepared by
23、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 standar
24、ds 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
25、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)
26、, 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
27、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 met
28、hods 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
29、 devices, Part 7: Requirements and test methods for nozzles for CO2systems, 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,
30、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 CO2low pressure
31、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, E
32、stonia, 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. EN 12094-5:2006 (E) 5 Introduction It has been assumed in the prepara
33、tion 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 = 105N m-2= 100 kPa. EN 12094-5:2006 (E) 6 1 Scope
34、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 St
35、andard. 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 I
36、SO 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 mov
37、e from its fully open position to its fully closed position 3.3 CO2-high-pressure installation fire extinguishing installation in which the CO2is stored at ambient temperature. For example, the pressure of the CO2in storage is pabs= 58,6 bar at 21 C 3.4 CO2-low-pressure installation fire extinguishi
38、ng installation in which the CO2is 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
39、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 ma
40、inly by reducing the oxygen-concentration in the protected zone, such as Argon, Nitrogen or mixtures of these gases with CO2EN 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
41、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 tw
42、o-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 mad
43、e 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
44、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
45、 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
46、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 contr
47、olled pressure only. 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 T
48、his 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 wo
49、rking 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 CO2locked in a closed CO2-low pressure selector valve after flooding may cause pressures ex-ce
