EN 13959:2004

Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D

The purpose of this European Standard is to specify:
-   field of application of Anti-pollution Check Valves;
-   backflow prevention properties, dimensional and physio-chemical properties, and properties of general hydraulic, mechanical and acoustic design to which Anti-pollution Check Valves of nominal sizes DN 6 to DN 250 inclusive shall conform;
-   Family E, type A, controllable Anti-pollution Check Valve (with test port);
-   Family E, type B, non-controllable Anti-pollution Check Valve, including Cartridge Check Valve;
-   Family E, type C, controllable Anti-pollution Double Check Valve (with test ports);
-   Family E, type D, non-controllable Anti-pollution Double Check Valve, including Cartridge Double Check Valve;
-   test procedures and requirements for verifying the backflow protection properties of stop valves, draw-off taps etc. which incorporate a check valve function. Stop valves, draw off taps etc, need also to comply with a recognised standard;
-   marking;
-   presentation at delivery.
This standard specifies the characteristics of Anti-pollution Check Valves of DN 6 up to and including DN 250 that are suitable for use in drinking water systems. For application feasibility see Table 1.
Table 1 - Nominal size vs Conditions of use
Nominalsize(DN)   Max. Operatingtemperature   Max. Operating pressure   Installation
DN <= 50                   65 °C + 90 °C, 1 hour   1 000 kPa (10 bar)                   Any position
DN > 50                   65 °C                                   1 000 kPa (10 bar)                   Horizontal only
Anti-pollution Check Valves covered by this standard are of Pressure Class PN 10.
The field of application of EN 1717 is limited to 10 bar, flanges could be drilled in PN 16 pattern.
Anti-pollution Check Valves of PN 16 shall satisfy the requirements of standard EN 13959 and comply with tests which characterise the PN of the device.

Rückflussverhinderer - DN 6 bis DN 250 - Familie E, Typ A, B, C und D

Clapets de non-retour antipollution - DN 6 à DN 250 inclus - Famille E, Type A, B, C et D

Protipovratni ventili za preprečevanje onesnaževanja – DN 6 do DN 250, vključno z družino E, vrste A, B, C in D

General Information

• Status: Published
• Publication Date: 19-Oct-2004
• Withdrawal Date: 29-Apr-2005
• ICS: 23.060.50 - Check valves
• 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
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/EXP - Expected mandates in CPD field.
• Ref Project: SIST EN 13959:2005 - Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Rückflussverhinderer - DN 6 bis DN 250 - Familie E, Typ A, B, C und DClapets de non-retour antipollution - DN 6 a DN 250 inclus - Famille E, Type A, B, C et DAnti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D23.060.50Blokirni ventiliCheck valvesICS:Ta slovenski standard je istoveten z:EN 13959:2004SIST EN 13959:2005en01-marec-2005SIST EN 13959:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13959October 2004ICS 23.060.50 English versionAnti-pollution check valves - DN 6 to DN 250 inclusive family E,type A, B, C and DClapets de non retour antipollution DN 6 à DN 250 - FamilleE, Type A, B, C et DRückflussverhinderer - DN 6 bis DN 250 - Familie E, Typ A,B, C und DThis European Standard was approved by CEN on 22 July 2004.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, 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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13959:2004: ESIST EN 13959:2005

has not jammed (stage 6).24 11.7 Pressure differential at which the check valve closes (stage 7).25 11.8 Compatibility with products used for disinfection of networks (stage 8).25 11.9 Endurance (stage 9).26 11.10 Pressure tightness under a low reverse pressure differential (stage 10).28 11.11 Pressure tightness under a high reverse pressure and verification that the check valve
has not jammed (stage 11).28 11.12 Pressure differential at which the check valve closes (stage 12).28 12 General working characteristics.29 12.1 Resistance to corrosion.29 12.2 Acoustic characteristics.29 13 Presentation at delivery.30 Annex A (informative)
Numbers of test devices/tests.31
Anti-pollution check valves covered by this document are of pressure class PN 10. In case of devises with pres-sure class PN 16, the anti–pollution check valves has to comply with the tests which characterise the PN of the devise. The field of application of EN 1717 is limited to 10 bar, flanges could be drilled in PN 16 pattern. SIST EN 13959:2005

EN ISO 5167-3, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 3: Nozzles and Venturi nozzles (ISO 5167-3:2003). EN ISO 6509, Corrosion of metals and alloys — Determination of dezincification resistance of brass (ISO 6509:1981). ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests. SIST EN 13959:2005

family E, type A, controllable anti-pollution check valve (with test port) controllable single check valve, consisting one closing element, is mechanical protection device to permit flow in one direction only. It will open automatically when the pressure in the direction of flow upstream of the valve is greater than the pressure downstream. In case when the pressure is higher downstream or no flow condi-tion exists the valve is
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