1、BRITISH STANDARD BS EN 12094-4:2004 Fixed firefighting systems Components for gas extinguishing systems Part 4: Requirements and test methods for container valve assemblies and their actuators The European Standard EN 12094-4:2004 has the status of a British Standard ICS 13.220.20 BS EN 12094-4:2004
2、 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 30 July 2004 BSI 30 July 2004 ISBN 0 580 44176 8 National foreword This British Standard is the official English language version of EN 12094-4:2004. This European Standard is the subject of t
3、ransitional arrangements agreed under a Commission mandate which is intended to lead to CE marking in support of the Construction Products Directive. In order to allow for any changes in national regulations, the Member States have agreed a transition period of 30 months before CE marking becomes ef
4、fective. The UK participation in its preparation was entrusted by Technical Committee FSH/18, Fixed fire fighting systems, to Subcommittee FSH/18/6, Gaseous extinguishing media and systems, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on r
5、equest to its secretary. Cross-references The 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 BS
6、I Electronic Catalogue or of British Standards 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. aid enquire
7、rs to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This docume
8、nt comprises a front cover, an inside front cover, the EN title page, pages 2 to 32, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORM
9、EEUROPENNE EUROPISCHENORM EN120944 July2004 ICS13.220.20 Englishversion FixedfirefightingsystemsComponentsforgasextinguishing systemsPart4:Requirementsandtestmethodsforcontainer valveassembliesandtheiractuators InstallationsfixesdeluttecontrelincendieElments constitutifspourinstallationsdextinctiong
10、azPartie4: Exigencesetmthodesdessaipourlesvannesde rservoiretleursdclencheurs OrtsfesteBrandbekmpfungsanlagenBauteilefr LschanlagenmitgasfrmigenLschmittelnTeil4: AnforderungenundPrfverfahrenfr Behlterventilbaugruppenundzugehrige Auslseeinrichtungen ThisEuropeanStandardwasapprovedbyCENon6May2004. CEN
11、membersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCEN
12、member. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustri
13、a,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATI
14、ON EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN120944:2004:EEN 12094-4:2004 (E) 2 Contents page Foreword 3 Introduction5 1 Scope.6 2 Normative references.6 3 Terms an
15、d definitions 7 4 Requirements .8 4.1 Compliance .8 4.2 General design .8 4.3 Connection threads10 4.4 Function and ambient temperature 10 4.5 Resistance to internal pressure10 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 co
16、rrosion.11 4.12 Vibration resistance.11 4.13 Diptube 11 4.14 Operating force.12 4.15 Functional reliability 12 4.16 Manual powered actuators12 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 press
17、ure 15 5.6 Strength.16 5.7 Leakage test for valves16 5.8 Operational reliability.17 5.9 Temperature17 5.10 Flow characteristics.17 5.11 Corrosion 20 5.12 Stress corrosion.21 5.13 Vibration21 5.14 Diptube 21 5.15 Operating force and functional reliability22 6 Marking and data22 6.1 General 22 6.2 Val
18、ve assemblies22 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 Directives28 Bibliography.32 EN 12094-4:2004 (E) 3 Fo
19、reword 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
20、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/EE
21、C. 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 pl
22、anned 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 Eur
23、opean 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 4 1) : R
24、equirements 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 CO 2systems Part 7: Requirements
25、and test methods for nozzles for CO 2systems 1)Under preparation. EN 12094-4:2004 (E) 4 Part 8: Requirements and test methods for flexible connectors for CO 2systems Part 9: Requirements and test methods for special fire detectors Part 10: Requirements and test methods for pressure gauges and pressu
26、re 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 CO 2low
27、 pressure systems Part 17 1) : Pipe hangers Part 20 1) : 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, C
28、yprus, 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. EN 12094-4:2004 (E) 5 Intr
29、oduction 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 = 10 5N/m 2= 100 kPa. EN 1
30、2094-4:2004 (E) 6 1 Scope This document specifies requirements and describes test methods for container valve assemblies for CO 2 - high-pressure-, Inert Gas- or Halocarbon Gas-fire extinguishing systems, which include a container valve, an actuator and possibly a diptube. This document specifies re
31、quirements 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 switch
32、es). 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
33、 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 thre
34、ads 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 system
35、s Requirements (ISO 9001:2000). ISO 7-1, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation. 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 valv
36、e 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 CO 2 -high-pressure installation fire extinguishing installation in which the CO 2is stored
37、 at ambient temperature. For example, the pressure of the CO 2in storage is p abs= 58,6 bar at 21 C 3.4 CO 2 -low-pressure installation fire extinguishing installation in which the CO 2is stored at low temperature, normally 19 C to 21 C 3.5 diptube pipe, connected to a container valve inlet, which a
38、llows 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
39、 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
40、the fire mainly by reducing the oxygen- concentration in the protected zone, e.g. Argon, Nitrogen or CO 2or 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 calculatio
41、n 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 EN 12094-4:2004 (E) 8 3.14 type 3 valve valve with pressure relief device reliev
42、ing 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 compone
43、nt 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 p
44、arts 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 n
45、ot 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 wo
46、rking pressure as given in Table 1, which is taken as the basis for the tests. Table 1 Working pressure working pressure in bar Component CO 2 -high-pressure component Inert Gas component Halocarbon Gas component Container valve 140 see a see a Pneumatic actuator As specified by the manufacturer aTh
47、is 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
48、 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 componen
