1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-23116-3 SANS 52094-4:2009Edition 1EN 12094-4:2004Edition 1SOUTH AFRICAN NATIONAL STANDARD Fixed firefighting systems Components for gas ex
4、tinguishing systems Part 4: Requirements and test methods for container valve assemblies and their actuators This national standard is the identical implementation of EN 12094-4:2003 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division
5、1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 52094-4:2009 Edition 1 EN 12094-4:2004 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS
6、SC 21C, Fire safety Fixed fire detection and extinguishing systems, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in July 2009. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12094-4July 2004ICS
7、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 lincendie - Elmentsconstitutifs pour installations dextinction gaz - Partie 4:Exig
8、ences et mthodes dessai pour les vannes derservoir et leurs dclencheursOrtsfeste Brandbekmpfungsanlagen - Bauteile frLschanlagen mit gasfrmigen Lschmitteln - Teil 4:Anforderungen und Prfverfahren frBehlterventilbaugruppen und zugehrigeAuslseeinrichtungenThis European Standard was approved by CEN on
9、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 obta
10、ined 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 Secret
11、ariat 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, Portuga
12、l, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reservedworldw
13、ide for CEN national Members.Ref. No. EN 12094-4:2004: ESANS 52094-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 12094-4:2004 (E) 2 Contents page Foreword 3 Introduction5 1 Scope.6 2 Normative references.6 3 Terms and definitions 7
14、 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 corrosion.11 4.12
15、 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 pressure 15 5.6 Str
16、ength.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 Valve assemblies2
17、2 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 SANS 52094-4:2009This s tandard may on
18、ly be used and printed by approved subscription and freemailing clients of the SABS .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
19、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 Comm
20、ission 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
21、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 67
22、1) 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
23、 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 Par
24、t 6: Requirements and test methods for non-electrical disable devices for CO2systems Part 7: Requirements and test methods for nozzles for CO2systems 1)Under preparation. SANS 52094-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 120
25、94-4:2004 (E) 4 Part 8: Requirements and test methods for flexible connectors for CO2systems 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 weighin
26、g 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 systems Part 171): Pipe hangers Part 201): Requirements and test
27、 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, Hun
28、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 1)Under preparation. SANS 52094-4:2009This s tandard may only be used and printed by approved subscription and freemailing cl
29、ients of the SABS .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
30、stated. NOTE 1 bar = 105N/m2= 100 kPa. SANS 52094-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 12094-4:2004 (E) 6 1 Scope This document specifies requirements and describes test methods for container valve assemblies for CO2-high-
31、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. Diptub
32、es 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 referenc
33、es, 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
34、 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 412
35、6-2, 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, tolerance
36、s and designation. SANS 52094-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .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 ins
37、talled 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 CO2is stored at ambient tempe
38、rature. For example, the pressure of the CO2in storage is pabs= 58,6 bar at 21 C 3.4 CO2-low-pressure installation fire extinguishing installation in which the CO2is 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
39、 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 compo
40、unds 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 red
41、ucing the oxygen-concentration in the protected zone, e.g. Argon, Nitrogen or CO2or 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 i
42、n 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 SANS 52094-4:2009This s tandard may only be used and printed by approved subscription and freemailing cl
43、ients of the SABS .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
44、 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 instructio
45、ns) 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
46、 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 asse
47、mblies 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
48、component Container valve 140 see a see a Pneumatic actuator As specified by the manufacturer aThis 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/superpres
49、surization, 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 superpr
