SIST EN 12259-5:2002
(Main)Fixed firefighting systems - Components for sprinkler and water spray systems - Part 5: Water flow detectors
Fixed firefighting systems - Components for sprinkler and water spray systems - Part 5: Water flow detectors
This European standard specifies requirements for construction and performance and tests for water flow detectors for use in wet pipe automatic sprinkler systems conforming to EN 12845 «Fixed firefighting systems - Automatic sprinkler systems- Design and Installation» .
Auxiliary components and attachments to water flow detectors are not covered by this standard.
Ortsfeste Löschanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen - Teil 5: Strömungsmelder
Diese Europäische Norm legt Anforderungen an Aufbau und Leistungseigenschaften sowie Prüfungen von Strömungsmeldern fest, die in automatischen Sprinkleranlagen (Nassanlagen) nach EN 12845 ?Automatische Sprinkleranlagen - Planung und Einbau" ) eingesetzt werden.
Zusatz- und Befestigungselemente für Strömungsmelder werden in dieser Norm nicht behandelt.
Installations fixes de lutte contre l'incendie - Composants des systemes sprinkleur et a pulvérisation d'eau - Partie 5: Indicateurs de passage d'eau
La présente Norme européenne spécifie les exigences relatives a la fabrication, aux performances et aux essais des indicateurs de passage d'eau destinés a etre utilisés dans les systemes automatiques du type sprinkleur conformes a l'EN 12845 " Installations fixes de lutte contre l'incendie - Systemes automatiques du type sprinkleur - Conception et Installation " ).
La présente norme ne traite pas des composants complémentaires et des accessoires des indicateurs de passage d'eau.
Vgrajene naprave za gašenje – Sestavni deli sprinklerskih sistemov in sistemov s pršečo vodo – 5. del: Javljalniki vodnega pretoka
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ortsfeste Löschanlagen - Bauteile für Sprinkler- und Sprühwasseranlagen - Teil 5: StrömungsmelderInstallations fixes de lutte contre l'incendie - Composants des systemes sprinkleur et a pulvérisation d'eau - Partie 5: Indicateurs de passage d'eauFixed firefighting systems - Components for sprinkler and water spray systems - Part 5: Water flow detectors13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 12259-5:2002SIST EN 12259-5:2002en01-december-2002SIST EN 12259-5:2002SLOVENSKI
STANDARD
SIST EN 12259-5:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12259-5September 2002ICS 13.220.20English versionFixed firefighting systems - Components for sprinkler and waterspray systems - Part 5: Water flow detectorsInstallations fixes de lutte contre l'incendie - Composantsdes systèmes d'extinction du type Sprinkleur et àpulvérisation d'eau - Partie 5: Indicateurs de passage d'eauOrtsfeste Löschanlagen - Bauteile für Sprinkler- undSprühwasseranlagen - Teil 5: StrömungsmelderThis European Standard was approved by CEN on 10 August 2002.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 Management Centre 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12259-5:2002 ESIST EN 12259-5:2002
EN 12259-5:2002 (E)2ContentspageForeword.41Scope.52Normative references.53Terms and definitions.64Construction and performance.64.1General.64.2Connections.64.3Rated working pressure.64.4Components.64.4.1Water pressure retaining parts.64.4.2Configuration.74.4.3Strength.74.4.4Fatigue resistance of springs and diaphragms.74.4.5Materials for contacting parts.74.4.6Microswitches.74.4.7Earthing and electrical connections.74.4.8Non-metallic components (excluding gaskets and seals).74.4.9Sealing elements.74.5Clearances.84.6Operation.84.7Corrosion resistance.84.8Pressure loss due to hydraulic friction.94.9Leak resistance.94.10Endurance.94.11Maintenance.95Marking.96Instructions for installation and operation.107Evaluation of conformity.107.1General.107.2Initial type testing.107.3Factory production control (FPC).10Annex A
(normative)
Verification of connection dimension test.12Annex B
(normative)
Pressurisation strength test.13Annex C
(normative)
Resistance to ageing test for non-metallic components (excluding gaskets and seals).14C.1Air oven ageing.14C.2Warm water ageing.14Annex D
(normative)
Sealing elements tests.15D.1Non-reinforced elastomeric seals.15D.2Reinforced elastomeric seals.15Annex E
(normative)
Clearances tests.16E.1Press-fit brushing test.16E.2Pipework obstruction test.16Annex F
(normative)
Operation tests.17F.1Sensitivity.17F.2 Operational cycling.17SIST EN 12259-5:2002
EN 12259-5:2002 (E)3F.2.1Contact resistance test.17F.2.2Insulation resistance test.18F.3 Temperature resistance.19Annex G
(normative)
Salt mist corrosion resistance test.20G.1Reagents.20G.2Apparatus.20G.3Procedure.20Annex H
(normative)
Hydraulic friction pressure loss test.21Annex I
(normative)
Leakage resistance test.22Annex J
(normative)
Endurance test.23Annex K
(informative)
Typical testing schedule and example of test specimen number of water flow detectors.24Annex ZA
(informative)
Clauses of this European Standard addressing essential requirements or other provisionsof EU Directives.28Bibliography.32SIST EN 12259-5:2002
EN 12259-5:2002 (E)4ForewordThis document EN 12259-5:2002 has been prepared by Technical Committee CEN/TC 191 "Fixed firefightingsystems", 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 orby endorsement, at the latest by March 2003, and conflicting national standards shall be withdrawn at the latest bySeptember 2005.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association and supports essential requirements of EU Directive 89/106/EEC.For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.It forms one Part of EN 12259, covering components for automatic sprinkler systems, and is included in a series ofEuropean Standards planned to cover:-automatic sprinkler systems (EN 122591));-gaseous extinguishing systems (EN 120941));-powder systems (EN 12416);-explosion protection systems (EN 26184);-foam systems (EN 135651));-hose reel systems (EN 671);-smoke and heat control systems (EN 121011));-water spray systems (EN xxxx1)).EN 12259 has the general title «Fixed fire fighting systems - Components for sprinkler and water spray systems»and will consist of the following Parts:-Part 1: Sprinklers-Part 2: Wet alarm valve assemblies-Part 3: Dry alarm valve assemblies-Part 4: Water motor alarms-Part 5: Water flow detectors-Part 6: Pipe couplings-Part 7: Pipe hangers-Part 8: Pressure switches
1) In preparation.SIST EN 12259-5:2002
EN 12259-5:2002 (E)5-Part 9: Deluge alarm valve assemblies-Part 10: Multiple controls-Part 11: Medium and high velocity water sprayers-Part 12: Pump setsThe annexes A to J are normative; annex K is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.1 ScopeThis European Standard specifies requirements for construction and performance and tests for water flowdetectors for use in wet pipe automatic sprinkler systems conforming to EN 12845 «Fixed firefighting systems -Automatic sprinkler systems - Design and Installation»2).Auxiliary components and attachments to water flow detectors are not covered by this standard.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 60335-1, Safety of household and similar electrical appliances, Part 1: General requirements (IEC 60335-1 :1991 , modified).IEC 61020-6, Electromechanical switches. Part 6: Sectional specification for sensitive switches.ISO 37, Rubber, vulcanised or thermoplastic - Determination of tensile stress-strain properties.ISO 49, Malleable cast iron fittings threaded to ISO 7-1.ISO 65, Carbon steel tubes suitable for screwing in accordance with ISO 7-1.ISO 188, Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests.ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws andstuds.ISO 898-2, Mechanical properties of fasteners
- Part 2: Nuts with specified proof load values; coarse thread.
2) In preparationSIST EN 12259-5:2002
EN 12259-5:2002 (E)63 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1flow velocitywater velocity through a pipe of the same nominal size as the water flow detector at the same flow rate3.2rated working pressuremaximum working pressure at which the water flow detector is intended to operate3.3reinforced elastomeric elementelements in a composite of an elastomeric compound with one or more other components that increases the tensilestrength of the combination to at least twice that of the elastomeric material alone3.4sensitivityminimum rate of flow of water flow detector in a downstream direction which will cause operation and give a signal3.5water flow detectordevice which responds at a pre-set flow rate only in the intended direction and operates electrical contacts4 Construction and performance4.1
GeneralThe water flow detector shall be suitable for installation, without modification. It shall be possible to removecompletely the water flow detector from the piping without leaving obstructions in the pipe.Unless otherwise indicated by the supplier the flow switch shall be evaluated for suitability with tube in accordancewith ISO 65.4.2
ConnectionsThe dimensions of all connections shall be specified by the water flow detector supplier.Verification of the specified dimensions shall be tested as specified in annex A.4.3
Rated working pressureThe rated working pressure of water flow detectors shall be not less than 12 bar.4.4
Components4.4.1
Water pressure retaining partsThe water pressure retaining parts of the detectors (other than gaskets or seals) shall be made of cast iron, bronze,brass, monel metal, stainless steel, titanium, aluminium alloy or materials having equivalent physical and mechanicalproperties.
Aluminium alloy and cast iron shall not be in contact with the water.SIST EN 12259-5:2002
EN 12259-5:2002 (E)74.4.2
ConfigurationThe design of any component, which may be normally disassembled during servicing, shall be such that it cannotbe reassembled wrongly.4.4.3
Strength4.4.3.1The installed water flow detector shall withstand, without leakage, permanent distortion or breakage ofcomponents, an internal hydrostatic pressure of four times the rated working pressure, for a period of 5 min, whentested in accordance with annex B.4.4.3.2The calculated load of any fastener, excluding the force required to compress the gasket, shall notexceed the minimum tensile strength specified in ISO 898-1 and ISO 898-2, when the water flow detector ispressurised to four times the rated working pressure. The area of the application of pressure shall be calculated asfollows:-if a full-face gasket is used, the area of force application is that extending out to line defined by the inner edgeof the bolts; for example in a flanged connection;-if a toroidal sealing ring or ring gasket is used, the area of force application is that extending out to the centreline of the toroidal sealing ring or ring gasket.4.4.4
Fatigue resistance of springs and diaphragmsSprings and diaphragms shall not fracture or rupture during 10 000 cycles of normal operation when tested inaccordance with the operational cycling test in F.2.4.4.5
Materials for contacting partsAny part and its bearing, excluding seals, gaskets and diaphragms, where rotation or sliding motion is required,shall be made of bronze, brass, monel metal, stainless steel, titanium or materials having equivalent physical andmechanical properties.4.4.6
MicroswitchesMicro switches where incorporated shall be in accordance with IEC 61020-6.4.4.7
Earthing and electrical connectionsEarthing and electrical connections shall be in accordance with EN 60335-1.4.4.8
Non-metallic components (excluding gaskets and seals)After ageing in accordance with annex C there shall be no cracking, warping, creep or other signs of deteriorationof non-metallic components and the water flow detector shall meet the operational and leak resistancerequirements of 4.6 and 4.9 when tested in accordance with annexes F and I.Separate samples shall be subjected to the tests in C.1 and C.2.4.4.9
Sealing elements4.4.9.1
Non-reinforced elastomer sealing elementsAny non-reinforced elastomer sealing element, other than gaskets, shall conform to the following:a) either minimum tensile strength 10 MPa and minimum ultimate elongation 300 %; orSIST EN 12259-5:2002
EN 12259-5:2002 (E)8b) minimum tensile strength 15 MPa and minimum ultimate elongation 200 %andc) maximum set of 5 mm when 25 mm are stretched to 75 mm, held for 2 min, and measured 2 min after release.When tested in accordance with the appropriate sections of ISO 37 and D.1, and after exposure to oxygen for 96 hat (70 + 1,5) °C and 20 bar as described in ISO 188:d) the tensile strength and ultimate elongation shall be not less than 70 % of the corresponding specimens thathave not been exposed to oxygen, any change in hardness shall be not greater than 5 type A durometer units.And after immersion in distilled water at (97,5 + 2,5) °C for 70 h:e) the tensile strength and ultimate elongation shall be not less than 70 % of the corresponding specimens thathave not been heated in water.
Change in volume of the specimens shall not be greater than 20 %.4.4.9.2
Reinforced elastomer sealing elementsAny reinforced elastomer sealing element shall be capable of being flexed without cracking or breaking and shallhave a change of volumetric expansion not greater than 20 %, when tested in accordance with D.2.4.5
ClearancesNOTEClearances are necessary between moving parts and between moving and stationary part so that corrosion ordeposits of foreign matter within an assembly will not render the water flow detector sluggish in action or inoperative.4.5.1Press-fit bushings shall conform to the appropriate clauses of ISO 49 when tested in accordance with E.1.4.5.2Any water flow detector vane shall operate by over-riding an 8 mm diameter rod attached to the inside ofthe pipewall along the pipe length when tested in accordance with E.2.4.6
Operation4.6.1When tested in accordance with annex F, the waterflow detector shall not operate to give a signal at all atflows below 10 l/min; and, for all flows above 80 l/min the flow detector shall operate to give a continuous signal.Any adjustable or fixed time delay device incorporated in the water flow detector shall not delay any signal for morethan 30 s. Any interruption of the water flow rate to below 10 l/min shall cause the delay device to resetautomatically to its initial state.4.6.2The water flow detector shall operate during 10 000 cycles of normal operation, after which it shall meet therequirements of 4.6.1 at 1 bar when tested in accordance with F.1. The electrical contact and insulation resistanceof the electrical part of the water flow detector shall remain within the manufacturer’s specification when tested inaccordance with F.2.1 and F.2.2 respectively.4.6.3The water flow detector shall be capable of normal operation between the temperature limits of 2 °C and68 °C after which it shall meet the requirement of 4.6.1 when tested in accordance with F.3.
After the test thereshall be no sign, on visual examination, of cracking or failure of any vane.4.7
Corrosion resistanceThe water flow detector shall meet the requirements of 4.6.1 at 1 bar and the electrical contact resistance andinsulation resistance of the electrical part shall remain within the manufacturer’s specification when tested inaccordance with annex G.SIST EN 12259-5:2002
EN 12259-5:2002 (E)94.8 Pressure loss due to hydraulic frictionThe pressure loss across the water flow detector shall not exceed 0,2 bar when water is flowing through it at avelocity of 5 m/s when tested in accordance with annex H.4.9
Leak resistanceAn installed water flow detector shall withstand without leakage, permanent distortion or structural failure, aninternal pressure equal to two times the rated working pressure or 25 bar whichever is the greater for a period of5 min when tested in accordance with annex I.4.10
EnduranceThe water flow detector and its moving parts shall operate at the flow velocity 10 m/s for 90 min without anypermanent distortion, detachment or breakage when tested in accordance with annex J.4.11 MaintenanceThe water flow detector shall be designed to permit cleaning and maintenance without the use of special tools.5
MarkingThe water flow detector shall be marked as follows:a) name or mark of the supplier;b) distinctive model number, catalogue designation or equivalent marking;c) external wall thickness of connecting pipe;d) electrical current and voltage ratings;e) rated working pressure in bar;f) the actual year of manufacture; or¾ for water flow detector produced in the last three months of a calendar year the following year date; or¾ for water flow detectors produced in the first six months of a calendar year the previous year date;g)minimum operating flow in l/min at which the devices operates;h)direction of indicated flow;i)factory of origin, if manufacture is at two or more factories;j)the number of this European Standard.The marking shall be in figures or letters at least 4,8 mm high and either:k)cast directly on the water flow detector; orl)on a metal label with raised or depressed characters (for example by etching, casting or stamping) that ismechanically attached (for example by rivets or screws) to the body of the water flow detector; cast labels shallbe of non-ferrous metal.Where ZA.3 covers the same requirements as this clause, the requirements of this clause 5 are met.SIST EN 12259-5:2002
EN 12259-5:2002 (E)106
Instructions for installation and operationInstructions for installation and operation shall be supplied with each water flow detector. These documents shallinclude an illustration showing the recommended method of installation and the trim function, assembly views toexplain operation, recommendation for and care and maintenance and the following details:a) water flow detector model or type, and sizes available;b) the rated working pressure;c) flow rate sensitivity and tolerance;d) the water flow detector installation details, including torque settings and pipe dimensions;e) instructions on how to set the water flow detector time delay and adjustment;f) electrical details, including minimum current rating at 24 V;g) design working attitudes;h) instructions on methods of sealing the conduit entry hole to prevent water leakage from the water flow detectorinto the conduit (e.g. specification of IP-class in accordance with EN 60529).7
Evaluation of conformity7.1
GeneralThe compliance of a water flow detector with the requirements of this standard shall be demonstrated by:¾ initial type testing;¾ factory production control by the manufacturer.7.2
Initial type testingInitial type testing shall be performed to demonstrate conformity with this standard (same product, samecharacteristic(s), test method, sampling procedure and system of attestation). Tests previously performed inaccordance with the provisions of this standard may be taken into account. In addition, initial type testing shall beperformed at the beginning of the production of a new product type or at the beginning of a new method ofproduction (where these may affect the stated properties).All characteristics given in clause 4 shall be subject to initial type testing.7.3
Factory production control (FPC)The manufacturer shall establish, document and maintain a FPC system to ensure that the products placed on themarket conform with the stated performance characteristics. The FPC system shall consist of procedures, regularinspections and tests and/or assessments and the use of the results to control raw and other incoming materials orcomponents, equipment, the production process and the product, and shall be sufficiently detailed to ensure thatthe conformity of the product is apparent.A FPC system conforming with the requirements of the relevant part(s) of EN ISO 9000, and made specific to therequirements of this standard, shall be considered to satisfy the above requirements.SIST EN 12259-5:2002
EN 12259-5:2002 (E)11The results of inspections, tests or assessments requiring action shall be recorded, as shall any action taken. Theaction to be taken when control values or criteria are not met shall be recorded.The production control procedure shall be recorded in a manual, which shall be made available when requested.The supplier shall carry out and record the results of production tests as part of the production control. Theserecords shall be available if requested.SIST EN 12259-5:2002
EN 12259-5:2002 (E)12Annex A(normative)Verification of connection dimension testNOTESee 4.2 for requirement.Measure or gauge the dimensions of all connections and check against the appropriate standards.SIST EN 12259-5:2002
EN 12259-5:2002 (E)13Annex B(normative)Pressurisation strength testNOTESee 4.4.3.1, for requirements.Install the water flow detector in the pipe assembly as shown in Figure B.1, in accordance with the manufacturer’sinstructions.
Seal the pipe assembly.
Pressurise the assembly with water to four times the rated working pressure;maintain the pressure for 5 min.
Examine the water flow detector for leakage, permanent distortion or breakage ofthe components.Dimensions in millimetres> 1000> 5003500+501501234__> 500_Key1
Location of water flow detector2
15 mm socket3
Pipe end connections to suit test apparatus4
Nominal bore to suit size of water flow detectorFigure B.1 — Pipe assembly for pressurisation strength, pipework obstruction, operation, hydraulic friction loss and endurance testsSIST EN 12259-5:2002
EN 12259-5:2002 (E)14Annex C(normative)Resistance to ageing test for non-metallic components (excluding gasketsand seals)NOTESee 4.4.8 for requirements.C.1Air oven ageingAge four samples of each non-metallic component in an air oven at (120 ± 2) °C for (180 ± 1) days. Support theelements so that they do not touch each other or the sides of the oven. Remove the samples from the oven andallow to cool in air at (23 ± 2) °C and relative humidity (50 ± 5) % for not less than 24 h before carrying out any test,measurement or examination.If the material cannot withstand the temperature indicated without excessive hardening or softening, distortion ordeterioration, carry out an air oven ageing test at lower temperature, but not less than 70 °C, for longer period oftime. Calc
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