EN 13433:2006
(Main)Devices to prevent pollution by backflow of potable water - Mechanical disconnector, direct actuated - Family G, type A
Devices to prevent pollution by backflow of potable water - Mechanical disconnector, direct actuated - Family G, type A
This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, direct actuated Family G, type A.
This European Standard is applicable to mechanical disconnector direct actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This European Standard covers the mechanical disconnector direct actuated of PN 10 that are capable of working without modification or adjustment:
- at any pressure up to 1 MPa (10 bar);
- with any pressure variation up to 1 MPa (10 bar);
- in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.
Sicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rückfließen - Rohrtrenner, nicht durchflussgesteuert - Familie G, Typ A
Diese Europäische Norm legt die maßlichen und physikalisch-chemischen Anforderungen, die Anforderungen
an die Konstruktion, die hydraulischen, mechanischen und akustischen Anforderungen an nicht durchflussgesteuerte
Rohrtrenner, Familie G, Typ A, fest.
Diese Europäische Norm gilt für nicht durchflussgesteuerte Rohrtrenner der Nennweiten DN 8 bis DN 250, die
verhindern sollen, dass Wasser, das seine ursprüngliche Qualität für sanitäre Zwecke und als Trinkwasser
verloren hat (in dieser Europäischen Norm -verunreinigtes Wasser- genannt) in das Trinkwasserversorgungsnetz
zurückfließt, wenn der Druck in diesem Netz vorübergehend niedriger ist als in dem verunreinigten
Kreislauf.
Diese Europäische Norm behandelt die nicht durchflussgesteuerten Rohrtrenner mit PN 10, die ohne Abänderung
oder Nachstellung funktionsfähig sind:
- bei jedem Druck bis 1 MPa (10 bar);
- bei jeder Druckschwankung bis 1 MPa (10 bar);
- unter Dauerbelastung bei einer Grenztemperatur von 65 °C sowie bei 90 °C für höchstens 1 h.
Diese Norm legt ferner die Prüfverfahren und die Anforderungen für den Nachweis dieser Eigenschaften, die
Kennzeichnung und den Lieferzustand fest.
Dispositifs de protection contre la pollution par retour de l'eau potable - Disconnecteur mécanique à action directe - Famille G, type A
La présente Norme européenne spécifie les caractéristiques dimensionnelles, physico-chimiques, de
conception, hydrauliques, mécaniques et acoustiques des disconnecteurs mécaniques à action directe
Famille G, type A.
La présente Norme européenne s'applique aux disconnecteurs mécaniques à action directe dont le diamètre
nominal va de DN 8 à DN 250, destinés à éviter le retour d'une eau ayant perdu ses qualités sanitaires et
alimentaires d'origine (appelée « eau polluée » dans cette Norme européenne), dans le système de
distribution d'eau potable lorsque la pression dans ce dernier est temporairement plus faible que dans le
circuit pollué.
La présente Norme européenne couvre les disconnecteurs mécaniques à action directe de PN 10 pouvant
fonctionner sans modification ni réglage :
- à toute pression jusqu'à 1 MPa (10 bar) ;
- pour toute variation de pression jusqu'à 1 MPa (10 bar) ;
- en service continu à une température limite de 65 °C, et à 90 °C pendant une durée allant jusqu'à 1 h.
Elle spécifie également les méthodes d'essai et les exigences pour vérifier leurs caractéristiques, le marquage
et la présentation à la livraison.
Naprave za varovanje pitne vode pred onesnaženjem zaradi povratnega toka – Mehanski ločilniki z neposrednim aktiviranjem – Družina G, tip A
General Information
- Status
- Withdrawn
- Publication Date
- 28-Feb-2006
- Withdrawal Date
- 02-Apr-2013
- Technical Committee
- CEN/TC 164 - Water supply
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 03-Apr-2013
- Completion Date
- 03-Apr-2013
- Directive
- 89/106/EEC - Construction products
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Refers
prEN 15116 - Ventilation in buildings - Chilled beams - Testing and rating of active chilled beams - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 27-Nov-2019
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Frequently Asked Questions
EN 13433:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Devices to prevent pollution by backflow of potable water - Mechanical disconnector, direct actuated - Family G, type A". This standard covers: This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, direct actuated Family G, type A. This European Standard is applicable to mechanical disconnector direct actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit. This European Standard covers the mechanical disconnector direct actuated of PN 10 that are capable of working without modification or adjustment: - at any pressure up to 1 MPa (10 bar); - with any pressure variation up to 1 MPa (10 bar); - in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum. It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.
This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, direct actuated Family G, type A. This European Standard is applicable to mechanical disconnector direct actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit. This European Standard covers the mechanical disconnector direct actuated of PN 10 that are capable of working without modification or adjustment: - at any pressure up to 1 MPa (10 bar); - with any pressure variation up to 1 MPa (10 bar); - in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum. It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.
EN 13433:2006 is classified under the following ICS (International Classification for Standards) categories: 13.060.20 - Drinking water; 23.060.50 - Check valves. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13433:2006 has the following relationships with other standards: It is inter standard links to EN ISO 6509-1:2014, EN ISO 3822-1:1999, prEN 15116, EN 806-5:2012, EN 13433:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 13433:2006 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 13433:2006 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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 - Rohrtrenner, nicht durchflussgesteuert - Familie G, Typ ADispositifs de protection contre la pollution par retour de l'eau potable - Disconnecteur mécanique a action directe - Famille G, type ADevices to prevent pollution by backflow of potable water - Mechanical disconnector, direct actuated - Family G, type A91.140.60Sistemi za oskrbo z vodoWater supply systems23.060.50Blokirni ventiliCheck valves13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 13433:2006SIST EN 13433:2006en01-julij-2006SIST EN 13433:2006SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13433March 2006ICS 13.060.20; 23.060.50 English VersionDevices to prevent pollution by backflow of potable water -Mechanical disconnector, direct actuated - Family G, type ADispositifs de protection contre la pollution par retour del'eau potable - Disconnecteur mécanique à action directe -Famille G, type ASicherungseinrichtungen zum Schutz des Trinkwassersgegen Verschmutzung durch Rückfließen - Rohrtrenner,nicht durchflussgesteuert - Familie G, Typ AThis European Standard was approved by CEN on 16 December 2005.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 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 Secretariat 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, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13433:2006: ESIST EN 13433:2006
Examples of presentation of test results.26 Bibliography.28
≤ ps +
50 kPa (0,5 bar); the relief valve starts opening at the set pressure ps ≥ pstat +
50 kPa (0,5 bar); drain position is achieved at a pressure p0 ≥ ps - 36 kPa (0,36 bar); a determined relief flow rate; a drain position visible directly or by a position indicator
Figure 1 — Design principle 3.2 inlet pressure, p1 pressure on the inlet side of the device SIST EN 13433:2006
G ½ G ¾ G 1 G 1 ¼ G 1 ½ G 2
Flanges (DN)
40 50 65 80 100 125 150 200 250 SIST EN 13433:2006
EXAMPLE of designation Mechanical disconnector EN 13433, direct actuated Family G, Type A, DN 32, G 1¼ × G 1¼, cast iron, epoxy coated, I. 6 Symbolization The graphic representation of the mechanical disconnector direct actuated Family G, Type A is as follows (see Figure 2):
Figure 2 — Graphic symbol 7 Physico-chemical characteristics 7.1 Materials The materials and the coatings used, liable to come normally or accidentally in contact with potable water, shall satisfy the EU regulations concerning water quality. The materials and the coatings shall be: a) corrosion resistant; b) prone to the least scaling possible; c) in conformity with the European Standards and regulations; SIST EN 13433:2006
This European Standard does not cover non-metallic materials for bodies. b) neither the materials nor the coatings used shall, by normal or accidental contact with drinking water, cause any risk of affecting or modifying the water up to a temperature of 90 °C. The suitability of the water for human consumption is defined by national regulations; c) the manufacturer shall state in his technical and sales literature the nature of the materials and the coat-ings selected; d) the materials, and in particular copper alloys, for which recommendations or International Standard exists shall comply with the relevant recommendations or International Standards. 8 Design 8.1 General a) The internal components of the device shall be accessible for inspection, repair or replacement. By de-sign, the components shall be able to be refitted at their initial place, without ambiguity (impossibility of reversal, interchange of obturators, diaphragms, springs). A visible mark is not sufficient. b) Additional control devices (electrical, pneumatic etc.) shall not influence the safety function. c) The settings of the springs shall be fixed and not adjustable. d) The device shall comprise one pressure tapping and a visible indication on the device when the obturator is in the drain position. The pressure tapping is located on the inlet of the device. e) Only the pressure of the water of the supply system at the inlet can operate the control of the internal components of the device. 8.2 Relief valve Under normal service conditions p1 > ps the relief valve is closed. At an inlet pressure p1 ≤ ps the relief valve starts opening and at a pressure p1 ≤ po the relief valve is in drain position. There shall be a visible indication on the device, when the obturator is in the drain position. In all the installation positions indicated by the manufacturer, any water retention shall not be possible within the intermediate zone. SIST EN 13433:2006
hot water ± 2 °C of the value specified; time: %100+of the value specified. SIST EN 13433:2006
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