SIST EN 13079:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Naprave za varovanje pred onesnaženjem pitne vode zaradi povratnega toka - Prosti iztok z injektorjem - Družina A - Tip DSicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rückfließen - Freier Auslauf mit Injektor - Familie A - Typ DDispositifs de protection contre la pollution de l'eau potable par retour - Surverse par injecteur - Famille A - Type DDevices to prevent pollution by backflow of potable water - Air gap with injector - Family A - Type D91.140.60Sistemi za oskrbo z vodoWater supply systems23.060.99Drugi ventiliOther valves13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 13079:2003SIST EN 13079:2004en01-maj-2004SIST EN 13079:2004SLOVENSKI
STANDARD



SIST EN 13079:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13079September 2003ICS 13.060.20; 23.060.99; 91.140.60English versionDevices to prevent pollution by backflow of potable water - Airgap with injector - Family A - Type DDisconnexion sans pièce mobile pour la prévention de lacontamination de l'eau pour retour - Spécification pour lessurverses par injecteur de type ADSicherungseinrichtungen zum Schutz des Trinkwassersgegen Verschmutzung durch Rückfließen - Freier Auslaufmit Injektor - Familie A - Typ DThis European Standard was approved by CEN on 1 August 2003.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,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13079:2003 ESIST EN 13079:2004



EN 13079:2003 (E)2ContentspageForeword.3Introduction.41Scope.52Normative references.53Terms and definitions.54Designation.65Symbolization.66Materials.67Requirements.67.1General.67.2Upstream feed orifice.77.3Downstream receiving orifice.77.4Receiving vessel.77.5Drain to atmosphere.77.6Air gap (Distance "A").77.7Backflow/Back pressure.87.8Verification.88Marking (not required for site constructed products).99Technical documents.10SIST EN 13079:2004



EN 13079:2003 (E)3ForewordThis document (EN 13079:2003) has been prepared by Technical Committee CEN /TC 164, "Water supply", thesecretariat of which is held by AFNOR.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 2004, and conflicting national standards shall be withdrawn at the latest byMarch 2004.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, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 13079:2004



EN 13079:2003 (E)4IntroductionIn respect of potential adverse effects on the quality of water intended for human consumption, caused by theproduct covered by this standard:a) this standard provides no information as to whether the product may be used without restriction in any memberstates of the EU or EFTA;b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulationsconcerning the use and/or the characteristics of this product remain in force.SIST EN 13079:2004



EN 13079:2003 (E)51 ScopeThis European Standard specifies the characteristics and the requirements of air gaps with injector Family AType D intended for protection of potable water in water installations from pollution.This standard applies to air gaps in factory assembled products and to constructed air gaps in situ, and defines thephysico-chemical characteristics of materials of construction used for the
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