SIST EN 13078:2004
(Main)Devices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C
Devices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C
Diese Europäische Norm legt die Eigenschaften und Anforderungen für freie Ausläufe mit belüftetem Tauchrohr und Überlauf, Familie A - Typ C, fest. Freie Ausläufe sind Sicherungseinrichtungen zum Schutz des Trinkwassers vor Verunreinigungen in Trinkwasser-Installationen. Die Norm gilt für freie Ausläufe von fabrikmäßig montierten Bauteilen sowie für vor Ort gebaute freie Ausläufe und definiert die physikalisch-chemischen Eigenschaften der Konstruktionswerkstoffe, die gebrauchstauglich und für den Anwendungs-
zweck geeignet sind, um im normalen Betrieb eine Übereinstimmung mit dieser Norm sicherzustellen.
Anhang A enthält Festlegungen für die Vakuumprüfung.
Sicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rückfließen - Freier Auslauf mit belüftetem Tauchrohr und Überlauf - Familie A, Typ C
Diese Europäische Norm legt die Anforderungen an freie Ausläufe Typ AC mit belüftetem Tauchrohr und Überlauf für Zuleitungen mit Nennweiten bis einschließlich DN 250 fest. Freie Ausläufe, die die Anforderungen dieser Norm erfüllen, sind Einrichtungen zum Schutz von Trinkwasser-Installationen gegen Verunreinigungen der Gefährdungsklasse 3. Zusätzlich zu Anforderungen an fabrikmäßig montierte Bauteile enthält diese Norm Anforderungen an vor Ort gebaute freie Ausläufe.
Dispositifs de protection contre la pollution de l'eau potable par retour - Surverse avec alimentation immergée incorporant une entrée d'air et un trop plein - Famille A, type C
La présente Norme européenne spécifie les caractéristiques et les exigences relatives aux surverses avec alimentation immergée incorporant une entrée d'air et un trop plein de la Famille A et du type C. Les surverses sont des dispositifs destinés a protéger contre la pollution l'eau potable des réseaux intérieurs. La présente norme s'applique a la fois aux surverses intégrées dans des produits assemblés en usine et aux surverses montées sur le terrain. Elle définit les caractéristiques physico-chimiques des matériaux de construction utilisés dans le cadre de cette application afin de garantir la conformité a la présente norme dans des conditions de service normal.
L'Annexe A spécifie l'essai au vide.
Naprave za varovanje pred onesnaženjem pitne vode zaradi povratnega toka - Prosti iztok s potopljeno cevjo in ozračenim prelivom - Družina A, tip C
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rückfließen - Freier Auslauf mit belüftetem Tauchrohr und Überlauf - Familie A, Typ CDispositifs de protection contre la pollution de l'eau potable par retour - Surverse avec alimentation immergée incorporant une entrée d'air et un trop plein - Famille A, type CDevices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C91.140.60Sistemi za oskrbo z vodoWater supply systems23.060.99Drugi ventiliOther valves13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 13078:2003SIST EN 13078:2004en01-maj-2004SIST EN 13078:2004SLOVENSKI
STANDARD
SIST EN 13078:2004
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13078November 2003ICS 13.060.20; 23.060.99English versionDevices to prevent pollution by backflow of potable water - Airgap with submerged feed incorporating air inlet plus overflow -Family A, type CDispositifs de protection contre la pollution de l'eau potablepar retour - Surverse avec alimentation immergéeincorporant une entrée d'air et un trop plein - Famille A,type CSicherungseinrichtungen zum Schutz des Trinkwassersgegen Verschmutzung durch Rückfließen - Freier Auslaufmit belüftetem Tauchrohr und Überlauf - Familie A, Typ CThis European Standard was approved by CEN on 1 September 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 13078:2003 ESIST EN 13078:2004
EN 13078:2003 (E)2Contents pageForeword.3Introduction.41Scope.52Normative references.53Terms and definitions.54Symbolization.65Designation.66Materials.67Requirements.77.1General.77.2Water inlet device.77.3Overflow arrangement.77.4Air gap (distance).77.5Verification of the air gap.87.6Efficiency of the air inlet orifice.88Marking (not required for site constructed products).99Technical documents.9Annex A (normative)
Vacuum test.11A.1General.11A.2Principle.11A.3Apparatus.11A.4Procedure.11SIST EN 13078:2004
EN 13078:2003 (E)3ForewordThis document (EN 13078:2003) 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 May 2004, and conflicting national standards shall be withdrawn at the latest byMay 2004.Annex A is normative.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 13078:2004
EN 13078:2003 (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 of theMember State 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 13078:2004
EN 13078:2003 (E)51 ScopeThis European Standard specifies the characteristics and the requirements of air gaps with submerged feedincorporating air inlet and an overflow, Family A, type C. Air gaps are devices for protection of potable water inwater installations from pollution. This standard applies to air gaps in factory assembled products and toconstructed air gaps in situ and defines the physico-chemical characteristics of materials of construction used forthe purpose and application to ensure compliance with this standard during normal working use.Annex A specifies the vacuum test.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 1717:2000, Protection against pollution of potable water in water installations and general requirements ofdevices to prevent pollution by backflow.EN 837-1, Pressure gauges – Part 1: Bourdon tube pressure gauges – Dimensions, metrology, requirements andtesting.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 1717:2000, and the followingapply.3.1air gap with submerged feed incorporating air inlet plus overflow Family A, type C"A C" air gap is a permanent and vertical distance between the lowest point of the air inlet orifice in the feed pipeand the critical water level at which the container overflowsNOTESee Figure 1 for the design principle.Figure 1 — Design principle3.2spillover levellevel at which water will start to overflow the receiving vessel with all outlets closed3.3critical water levelphysical or piezometric level of the liquid reached in any part of the appliance 2 s after closing the water inletstarting from maximum fault levelSIST EN 13078:2004
EN 13078:2003 (E)63.4dimension hheight between the spillover level and the critical level3.5maximum levelhighest water level H reached above the spillover level under positive pressure fault conditions with all outletsclosed3.6splashingwhen contamination from microbiological or viral elements is likely to occur and when maintaining the maximumflow rate at the normal operational level, will contact be observed between the air inlet orifice and the liq
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.