EN 15096:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rückfließen - Rohrbelüfter für Schlauchanschlüsse - DN 15 bis DN 25, Familie H, Typ B und Typ D - Allgemeine technische BestimmungenDispositifs de protection contre la pollution par retour de l'eau potable - Soupapes anti-vide d'extrémité - DN 15 à DN 25 inclus Famille H, type B et type D - Spécifications techniques généralesDevices to prevent pollution by backflow of potable water - Hose Union anti-vacuum valves - DN 15 to DN 25 inclusive Family H, type B and type D - General technical specification91.140.60Sistemi za oskrbo z vodoWater supply systems23.060.01Ventili na splošnoValves in general13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 15096:2008SIST EN 15096:2009en,fr,de01-januar-2009SIST EN 15096:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15096January 2008ICS 91.140.60 English VersionDevices to prevent pollution by backflow of potable water - HoseUnion anti-vacuum valves - DN 15 to DN 25 inclusive Family H,type B and type D - General technical specificationDispositifs de protection contre la pollution par retour del'eau potable - Soupape anti-vide d'extrémité - DN 15 à DN25 inclus famille H, type B et type D - Spécificationstechniques généralesSicherungseinrichtungen zum Schutz des Trinkwassersgegen Verschmutzung durch Rückfließen - Rohrbelüfter fürSchlauchanschlüsse - DN 15 bis DN 25, Familie H, Typ Bund Typ D - Allgemeine technische BestimmungenThis European Standard was approved by CEN on 3 November 2007.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 CEN 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15096:2008: ESIST EN 15096:2009

3 Foreword This document (EN 15096:2008) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat 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 or by endorsement, at the latest by July 2008, and conflicting national standards shall be withdrawn at the latest by July 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This standard has been developed in reference with EN 1717. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Repub-lic, 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 the United Kingdom.
5 1 Scope This European Standard specifies: a) the field of application; b) the requirements of hose union anti vacuum valves; c) dimensional and physio-chemical properties, and properties of general hydraulic, mechanical and acous-tic design of hose union anti-vacuum valves of nominal sizes DN 15 up to and including DN 25; d) marking and technical product information. This standard specifies the characteristics of hose union anti-vacuum valves of nominal size DN 15 up to and including DN 25 that are suitable for use in drinking water systems at pressures up to and including 1 MPa (10 bar) and temperatures up to and including 65 °C and for 1 h at 90 °C. HB protects against back siphonage only and should be installed in vertical downward flow position. HB and HD anti-vacuum valves are for installation exclusively at the connecting point between stop valve and hose in vertical downward flow position. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer-ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN 13959, Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D 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 3822-1, Acoustics — Laboratory tests on noise emission from appliances and equipment used in wa-ter supply installations — Part 1: Method of measurement (ISO 3822-1:1999) EN ISO 3822-3, Acoustics — Laboratory tests on noise emission from appliances and equipment used in water supply installations — Part 3: Mounting and operating conditions for in-line valves and appliances EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2003) EN ISO 6509, Corrosion of metals and alloys — Determination of dezincification resistance of brass (ISO 6509:1981) EN ISO 9227, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2006) SIST EN 15096:2009

NOTE The air inlets are opened if there is subatmospheric pressure at the water inlet and closed to be watertight again when the supply lines are back to at least atmospheric pressure. 3.2 hose union anti-vacuum valve HD valve HB with integrated check valve EB located upstream (monoblock)
NOTE For the purpose of this standard, "hose union anti-vacuum valve(s)“ are hereafter referred to as "device(s)“.
4 Nominal size The nominal size of the devices (DN designated) shall correspond to the nominal size of the threaded connec-tion according to Table 1. Table 1 — Thread size vs nominal size Thread size according to EN ISO 228-1 G ½
G ¾
G 1 DN 15 20 25
5 Designation The device is designated by: a)
name b) family c) type d) nominal size e) body material f) reference to this document (EN 15096) Example of designation Hose union anti-vacuum valve family H type B, DN 20, gun metal, EN 15096 SIST EN 15096:2009

7 6 Marking and technical product information 6.1 General In the countries where the use of products made of dezincification resistant materials is not required, the de-zincification resistant products according to EN ISO 6509, as well as the products which do not contain zinc, are allowed to be marked << DR >>. In countries where the use of dezincification resistant materials is re-quired, the dezincification resistant products, as well as the products which do not contain zinc, shall be marked << DR >>. 6.2 Marking The devices shall be permanently and visibly marked on the body or on a fixed identification plate. This information shall be on the outside of the device. The marking has to be indelible and obtained by mould-ing, engraving or similar procedures. The marking shall indicate a) name, manufacturer's brand or logo; b) arrow indicating direction of flow; c) nominal size (DN); d) acoustic group; e) letters indicating family and type of device; f) nominal pressure (PN); g) conformance with this document (EN 15096); h) maximum operating temperature °C. Marking a), b), c), and e) are obligatory. In case there is no marking for d), the device has to be considered as not classified acoustically. 6.3 Technical product information Each package and/or each batch and/or each catalogue of the supplier/manufacturer shall contain technical product information which shall be written in a commonly spoken language of the country in which the product is sold. It shall provide the following information: a) designation and purpose of the product; b) installation instructions; c) minimum installation height; d) (brand) name and address of supplier/manufacturer; e) instructions for maintenance, if any; f) spare part list, if any; g) nature of materials; h) terminal/inline use. SIST EN 15096:2009

Figure 1 — Hose union anti-vacuum valve symbol 8 General design characteristics 8.1 Design principle A typical design principle of HB and HD device is given in Figure 2 and Figure 3. Dimensions in millimetres
Zero flow p1 = p2 = patm flow p1 > p2 > patm back siphonage p1 < p2 = patm Key a water supply b air inlet Figure 2 — Design principle of HB device SIST EN 15096:2009

zero flow p1 > p2 = p3 = patm flow p1 > p2 > p3 > patm back siphonage p1 < p2 = p3 ≤ patm check valve type EB leak-tight back siphonage p1 < p2 < p3 ≤ patm check valve type EB leaksFigure 3 — Design principle of HD device 8.2 Connections Connections shall comply with EN ISO 228-1. The device shall have a means to be fixed permanently to the point of use outlet such that after removal of the device a hose cannot be connected to the outlet of the point of use (e.g. irreversible damage of the connecting thread or different thread dimensions inlet /outlet) or a permanent visible leakage is created. 8.3 Check valve The check valve of a HD has to comply with the requirements of EN 13959 for EB. In case of subatmospheric pressure in the supply lines, the air inlets of an HD will only be opened if the EB is defective (leaks). 9 Physico-chemical characteristics 9.1 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 in accordance with EN ISO 9227; b) prone to the least scaling possible; c) in conformity with the European Standards and regulations; d) compatible among themselves and SIST EN 15096:2009
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