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  • EN 12729:2002

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A

    Available format(s): 

    Withdrawn date:  31-05-2003

    Language(s): 

    Published date:  20-11-2002

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Denomination
    5 Designation
    6 Symbolization
    7 Physico-chemical characteristics
       7.1 Materials
       7.2 Nature of the materials
    8 Design
       8.1 General
       8.2 Relief valve
    9 Characteristics and tests
       9.1 General
       9.2 General tolerances
       9.3 Expression of the results
       9.4 Dimensional characteristics
       9.5 Mechanical characteristics
       9.6 Tightness characteristics
       9.7 Hydraulic characteristics
    10 Order of testing
    11 Marking and technical documents
       11.1 Marking
       11.2 Technical documents
    12 Presentation at delivery
    Annex A (informative) Examples of presentation of test results
    Bibliography

    Abstract - (Show below) - (Hide below)

    The purpose of this standard is to define - the field of application; - the dimensional, physico-chemical, design, hydraulic, mechanical and acoustic characteristics; - the working and the prescriptions for the tests to check , these characteristics; - the marking and the presentation. To be adhered to for reduced pressure principle backflow preventers, controllable BA.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 164
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Withdrawn

    Standards Referenced By This Book - (Show below) - (Hide below)

    NF EN 806-5 : 2012 SPECIFICATION FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 5: OPERATION AND MAINTENANCE
    BS EN 806-5:2012 Specifications for installations inside buildings conveying water for human consumption Operation and maintenance
    DIN EN 806-5:2012-04 Specifications for installations inside buildings conveying water for human consumption - Part 5: Operation and maintenance
    09/30200073 DC : 0 BS EN 806-5 - SPECIFICATION FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 5: OPERATION AND MAINTENANCE
    EN 806-5:2012 Specifications for installations inside buildings conveying water for human consumption - Part 5: Operation and maintenance
    UNI EN 806-5 : 2012 SPECIFICATIONS FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 5: OPERATION AND MAINTENANCE
    I.S. EN 806-5:2012 SPECIFICATIONS FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 5: OPERATION AND MAINTENANCE
    UNE-EN 806-5:2013 Specifications for installations inside buildings conveying water for human consumption - Part 5: Operation and maintenance
    I.S. EN 61770:2009 ELECTRIC APPLIANCES CONNECTED TO THE WATER MAINS - AVOIDANCE OF BACKSIPHONAGE AND FAILURE OF HOSE-SETS
    EN 61770:2009/A11:2018 ELECTRIC APPLIANCES CONNECTED TO THE WATER MAINS - AVOIDANCE OF BACKSIPHONAGE AND FAILURE OF HOSE-SETS

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 806-1:2000/A1:2001 SPECIFICATIONS FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 1: GENERAL
    EN 1717:2000 Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow
    ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
    ISO 3822-2:1995 Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part 2: Mounting and operating conditions for draw-off taps and mixing valves
    ISO 6509:1981 Corrosion of metals and alloys Determination of dezincification resistance of brass
    ISO 9227:2017 Corrosion tests in artificial atmospheres — Salt spray tests
    ISO 3822-3:1997 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 3822-1:1999/A1:2008 ACOUSTICS - LABORATORY TESTS ON NOISE EMISSION FROM APPLIANCES AND EQUIPMENT USED IN WATER SUPPLY INSTALLATIONS - PART 1: METHOD OF MEASUREMENT
    EN ISO 6509 : 1995 CORROSION OF METALS AND ALLOYS - DETERMINATION OF DEZINCIFICATION RESISTANCE OF BRASS
    EN 1092-2:1997 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges
    EN 1267:2012 Industrial valves - Test of flow resistance using water as test fluid
    ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
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