• I.S. EN 12078:1999

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    ZERO GOVERNORS FOR GAS BURNERS AND GAS BURNING APPLIANCES

    Available format(s):  Hardcopy, PDF

    Superseded date:  18-04-2011

    Language(s):  English

    Published date:  01-01-1999

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    Foreword
    1 Scope
    2 Normative references
    3 Definitions
    4 Units of measurement
    5 Construction requirements
       5.1 General
       5.2 Materials
       5.3 Connections
       5.4 Seals for glands for moving parts
       5.5 Pressure test nipples
    6 Performance requirements
       6.1 General
       6.2 External leak-tightness
       6.3 Torsion and bending
       6.4 Durability
       6.5 Zero governor performance
       6.6 Endurance
       6.7 Lock-up pressure
       6.8 Response time
    7 Test methods
       7.1 Mounting position
       7.2 Test conditions
       7.3 External leak-tightness
       7.4 Torsion and bending
       7.5 Durability
       7.6 Zero governor performance test
       7.7 Pressure drop (fully open)
       7.8 Endurance
       7.9 Lock-up pressure
       7.10 Dynamic response test
    8 Marking, installation and operating instructions
       8.1 Marking
       8.2 Installation, operating and servicing instructions
       8.3 Warning notice
    Annex ZA (informative) Clauses of this European Standard
             addressing essential requirements or other provisions
             of EU Directives

    Abstract - (Show below) - (Hide below)

    Defines the safety, constructional and performance requirements for zero pressure governors, known as zero governors, intended for use with gas appliances.

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

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By

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

    ISO 274:1975 Copper tubes of circular section — Dimensions
    ISO 262:1998 ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts
    ISO 68:1973 ISO general purpose screw threads Basic profile
    ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
    ISO 65:1981 Carbon steel tubes suitable for screwing in accordance with ISO 7-1
    ISO 301:2006 Zinc alloy ingots intended for castings
    ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
    EN 60730-1:2016 AUTOMATIC ELECTRICAL CONTROLS - PART 1: GENERAL REQUIREMENTS (IEC 60730-1:2013, MODIFIED + COR1:2014)
    ISO 1817:2015 Rubber, vulcanized or thermoplastic Determination of the effect of liquids
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