EN 1487:2014

Building valves - Hydraulic safety groups - Tests and requirements

This European Standard specifies dimensions, materials and performance requirements (including methods of test) for hydraulic safety groups, of nominal sizes from DN 15 to DN 25, having working pressures ) from 0,1 MPa (1 bar) to 0,7 MPa (7 bar). Hydraulic safety groups are intended for fitting to the potable water supply of storage water heaters, having a maximum storage temperature of 95°C.
Hydraulic safety groups limit the pressure in hot water heaters, prevent the backflow of water into the main circuit and prevent the discharged water to get into contact with the water in the water heater.
Hydraulic safety groups do not control the temperature. They ensure the hydraulic safety of water heaters if the mechanical resistance of the water heater remains at least equal to the rating pressure.
NOTE   The use of the device specified in this European Standard does not override the need to use controls (e.g. thermostats and cut-outs) which act directly on the power sources of water heaters.

Gebäudearmaturen - Hydraulische Sicherheitsgruppen - Prüfungen und Anforderungen

Diese Europäische Norm legt Maße, Werkstoffe und Leistungsanforderungen (einschließlich Prüfverfahren) für hydraulische Sicherheitsgruppen in den Nennweiten DN 15 bis DN 25 mit Arbeitsdrücken ) von 0,1 MPa (1 bar) bis 0,7 MPa (7 bar) fest. Hydraulische Sicherheitsgruppen sind für die Ausrüstung der Trinkwasser¬versorgung von Speicherwassererwärmern mit einer maximalen Speichertemperatur von 95 °C bestimmt.
Hydraulische Sicherheitsgruppen begrenzen den Druck im Wassererwärmer und verhindern sowohl, dass Wasser in das Netz zurückfließt, als auch, dass das abgelassene Wasser mit dem Wasser im Wassererwär¬mer in Kontakt kommt.
Hydraulische Sicherheitsgruppen regeln nicht die Temperatur. Sie stellen die hydraulische Sicherheit von Wassererwärmern sicher, soweit die Festigkeit des Behälters mindestens dem Druck bei Nennleistung entspricht.
ANMERKUNG   Die in dieser Norm festgelegte Armatur ist nur in Verbindung mit energieseitig arbeitenden Sicherheits¬elementen (z. B. Temperaturregler und Temperaturbegrenzer) für die gesamte Sicherheit des Wassererwärmers verant¬wortlich.

Robinetterie de bâtiment - Groupes de sécurité hydraulique - Essais et exigences

La présente Norme européenne spécifie les dimensions, les matériaux et les exigences de performance (y compris les méthodes d’essai) auxquels doivent satisfaire les groupes de sécurité hydraulique de diamètre nominal allant de DN 15 à DN 25, dont les pressions de service ) sont comprises entre 0,1 MPa (1 bar) et 0,7 MPa (7 bar). Les groupes de sécurité hydraulique sont destinés à être montés au niveau de l’alimentation en eau potable des chauffe-eau à accumulation, dont la température de stockage ne dépasse pas 95 °C.
Les groupes de sécurité hydraulique limitent la pression du fluide contenu dans les chauffe-eau, empêchant le retour d’eau dans le circuit principal et tout contact entre l’eau du réseau d’évacuation et l’eau du chauffe-eau.
Les groupes de sécurité hydraulique ne contrôlent pas la température. Ils assurent la sécurité hydraulique des chauffe-eau, sous réserve que la résistance mécanique de la cuve du chauffe-eau soit au moins égale à la pression de débit nominal.
NOTE   L’utilisation du dispositif spécifié dans la présente Norme européenne ne doit pas prévaloir sur la nécessité d’utiliser des commandes qui agissent directement sur les sources d’énergie des chauffe-eau (tels que les thermostats et dispositifs de coupure).

Ventili v stavbah - Varnostni bloki - Preskusi in zahteve

Standard EN 1487 določa mere, materiale in tehnične zahteve (vključno s preskusnimi metodami) za varnostne bloke nazivnih velikosti od DN 15 do DN 25 z delovnimi tlaki od 0,1 MPa (1 bar) do 0,7 MPa (7 barov). Varnostni bloki so namenjeni priključitvi na akumulacijske grelnike vode za oskrbo s pitno vodo, ki imajo najvišjo temperaturo vode 95 °C. Varnostni bloki omejijo tlak v grelnikih vode, s čimer preprečujejo povratni tok vode v glavni vodovod, obenem pa iztečeni vodi preprečujejo stik z vodo v grelniku vode. Varnostni bloki ne nadzorujejo temperature, temveč zagotavljajo hidravlično varnost grelnikov vode, če mehanska odpornost grelnika vode ostane najmanj enaka nazivnemu tlaku. OPOMBA Uporaba naprave, navedene v tem evropskem standardu, ne izključuje zahteve za uporabo krmilnikov (npr. termostatov in izklopnih stikal), ki delujejo neposredno na vire napajanja grelnikov vode.

General Information

• Status: Published
• Publication Date: 08-Jul-2014
• Withdrawal Date: 30-Jan-2015
• ICS: 91.140.60 - Water supply systems
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164/WG 14 - Valves and fitting for buildings and devices to prevent pollution by backflow
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 08-Jul-2020
• Ref Project: SIST EN 1487:2014 - Building valves - Hydraulic safety groups - Tests and requirements

Relations

• Replaces: EN 1487:2000 - Building valves - Hydraulic safety groups - Tests and requirements
• Effective Date: 11-Jul-2011

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ventili v stavbah - Varnostni bloki - Preskusi in zahteveGebäudearmaturen - Hydraulische Sicherheitsgruppen - Prüfungen und AnforderungenRobinetterie de bâtiment - Groupes de sécurité hydraulique - Essais et exigencesBuilding valves - Hydraulic safety groups - Tests and requirements91.140.60Sistemi za oskrbo z vodoWater supply systems23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 1487:2014SIST EN 1487:2014en,fr,de01-oktober-2014SIST EN 1487:2014SLOVENSKI
STANDARDSIST EN 1487:20001DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1487
July 2014 ICS 91.140.60 Supersedes EN 1487:2000English Version
Building valves - Hydraulic safety groups - Tests and requirements
Robinetterie de bâtiment - Groupes de sécurité hydraulique - Essais et exigences
Gebäudearmaturen - Hydraulische Sicherheitsgruppen - Prüfungen und Anforderungen This European Standard was approved by CEN on 22 May 2014.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1487:2014 ESIST EN 1487:2014

2 Contents Page Foreword .4 Introduction .6 1 Scope .7 2 Normative references .7 3 Terms and definitions .8 4 Materials and surface finishes . 11 4.1 General . 11 4.2 Materials . 11 4.3 Detection of residual stress . 11 4.3.1 Test . 11 4.3.2 Test method (Procedure) . 11 4.3.3 Requirements . 12 4.4 Outside visible surfaces . 12 4.4.1 Surfaces without coatings . 12 4.4.2 Surfaces with coatings . 13 4.5 Corrosion resistance . 13 4.5.1 Test method . 13 4.5.2 Requirements . 13 4.6 Coating adherence. 13 4.6.1 Test method . 13 4.6.2 Requirements . 14 4.7 Compatibility with the products used for disinfection of the networks . 14 4.7.1 General . 14 4.7.2 Test method . 14 4.7.3 Requirements . 14 5 Design and dimensional requirements . 14 5.1 General guidance . 14 5.2 Dimensional characteristics . 15 5.2.1 End connections . 15 5.3 Test port . 17 5.4 Pressure tapping. 17 5.5 Hydraulic safety valve outlet connection to air break to drain . 18 5.6 Hydraulic safety valve discharge connection to drain device . 18 5.7 Exclusions . 18 5.8 Replacing of the safety valve . 18 5.9 Check valve . 18 6 Apparatus . 18 6.1 General . 18 6.2 Tolerances of parameters and accuracy of measure instruments . 18 6.2.1 Tolerances on set parameters . 18 6.2.2 Accuracy of measuring instruments . 19 6.2.3 Test media . 19 7 Hydraulic tests and requirements . 19 7.1 Flow rate test . 19 7.1.1 Procedure . 19 7.1.2 Requirement . 19 7.2 Tightness test . 19 SIST EN 1487:2014
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