SIST EN 16304:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Samodejni varnostno izpustni ventili za plinske gorilnike in plinske aparateAutomatische Abblaseventile für Gasbrenner und GasgerätRobinets d'évent automatiques pour brûleurs à gaz et appareils à gazAutomatic vent valves for gas burners and gas burning appliances27.060.20Plinski gorilnikiGas fuel burners23.060.40Pressure regulatorsICS:Ta slovenski standard je istoveten z:EN 16304:2013SIST EN 16304:2014en,fr,de01-januar-2014SIST EN 16304:2014SLOVENSKI
STANDARD



SIST EN 16304:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16304
March 2013 ICS 23.060.40 English Version
Automatic vent valves for gas burners and gas burning appliances
Robinets d'évent automatiques pour brûleurs à gaz et appareils à gaz
Automatische Abblaseventile für Gasbrenner und GasgerätThis European Standard was approved by CEN on 5 February 2013.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16304:2013: ESIST EN 16304:2014



EN 16304:2013 (E) 2 Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Classification . 5 5 Units of measurement and test conditions . 6 6 Construction requirements . 6 7 Performance . 9 8 EMC/Electrical requirements . 13 9 Marking, installation and operating instructions . 15 Annex A (informative)
Gas connections in common use in the various countries . 18 Annex B (informative)
Leak-tightness test – volumetric method . 19 Annex C (informative)
Leak-tightness test – pressure loss method . 20 Annex D (normative)
Conversion of pressure loss into leakage rate . 21 Annex E (normative)
Electrical/electronic component fault modes . 22 Annex F (normative)
Additional requirements for safety accessories and pressure accessories as defined in EU Directive 97/23/EC . 23 Annex G (normative)
Materials for pressurised parts . 24 Annex H (informative)
Additional materials for pressurised parts . 25 Annex I (normative)
Requirements for controls used in DC supplied gas burners and gas burning appliances . 26 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2009/142/EC relating to appliances burning gaseous fuels. 27 Bibliography. 29
Tables
Table 1 — Operating cycles . 13 Table ZA.1 — Correspondence between this European Standard and Directive 2009/142/EC relating to appliances burning gaseous fuels . 27
SIST EN 16304:2014



EN 16304:2013 (E) 3 Foreword This document (EN 16304:2013) has been prepared by Technical Committee CEN/TC 58 “Safety and control devices for burners and appliances burning gaseous or liquid fuels”, the secretariat of which is held by BSI. 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 September 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document is intended to be used in conjunction with EN 13611:2007+A2:2011. This document refers to clauses of EN 13611:2007+A2:2011 or adapts clauses by stating “with the following modification”, “with the following addition”, “is replaced by the following” or "is not applicable" in the corresponding clause. This European Standard adds clauses or subclauses to the structure of EN 13611:2007+A2:2011 which are particular to this standard. Subclauses or annexes which are additional to those in EN 13611:2007+A2:2011 are numbered starting from 101 or are designated as Annex AA, BB, CC, etc. Safety Integrity Level (SIL) classification according to EN 61508 (all parts) cannot be claimed based upon compliance with this standard. Vent valves with SIL classification do not meet automatically the requirements of this standard. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: 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 the United Kingdom.
SIST EN 16304:2014



EN 16304:2013 (E) 4 1 Scope This European Standard specifies the safety, construction and performance requirements for automatic vent valves for use with gas burners, gas appliances and similar use, hereafter referred to as ‘valves’.
This European Standard is applicable to:
 valves with declared maximum inlet pressures up to and including 500 kPa (5 bar) of nominal connection sizes up to and including DN 100 for use with one or more fuel gases in accordance with EN 437:2003+A1:2009;  electrically operated valves;  valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy;  valves fitted with open position indicator switches. NOTE Provisions for final product inspection and testing by the manufacturer are not specified. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13611:2007+A2:2011, Safety and control devices for gas burners and gas-burning appliances — General requirements EN 13906-1, Cylindrical helical springs made from round wire and bar — Calculation and design — Part 1: Compression springs EN 13906-2, Cylindrical helical springs made from round wire and bar — Calculation and design — Part 2: Extension springs EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 60730-1:2011, Automatic electrical controls for household and similar use — Part 1: General requirements (IEC 60730-1:2010, modified) EN 61058-1, Switches for appliances — Part 1: General requirements (IEC 61058-1) EN 175301-803, Detail Specification: Rectangular connectors — Flat contacts, 0,8 mm thickness, locking screw not detachable 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13611:2007+A2:2011 and the following apply. 3.101 automatic vent valve device which closes when energised and opens automatically when de-energised SIST EN 16304:2014



EN 16304:2013 (E) 5 3.102 actuating mechanism part of the valve which moves the closure member 3.103 open position indicator switch device fitted to a valve which indicates when the closure member is in the open position 3.104 actuating energy required energy for the actuating mechanism to move the closure member to the closed position Note 1 to entry: The actuating energy can have an external source (electrical, pneumatic or hydraulic) and can be transformed inside the valve. 3.105 opening force force required to open the valve, independent of any force provided by fuel gas pressure 3.106 frictional force largest force required to move the actuating mechanism and the closure member from the closed position to the open position with the opener spring removed, independent of any force provided by fuel gas pressure 3.107 actuating pressure hydraulic or pneumatic pressure supplied to the actuating mechanism of the valve 3.108 opening time time interval between de-energising the valve and the closure member attaining the open position 3.109 closing time time interval between energising the valve and the closure member attaining the closed position 3.110 delay time time interval between energising the valve and the start of the closure member moving to the closed position 3.111 control valve device which controls the fluid (e.g. compressed air) supplied to the actuating mechanism 3.112 rated voltage voltage as stated in the installation and operating instructions at which the valve may be operated 3.113 rated current current as stated in the installation and operating instructions at which the valve may be operated 4 Classification 4.1 Classes of control EN 13611:2007+A2:2011, 4.1 is not applicable.
SIST EN 16304:2014



EN 16304:2013 (E) 6 4.2 Groups of control Shall be according to EN 13611:2007+A2:2011, 4.2. 4.3 Classes of control functions Shall be according to EN 13611:2007+A2:2011, 4.3. 5 Units of measurement and test conditions Shall be according to EN 13611:2007+A2:2011, Clause 5.
6 Construction requirements 6.1 General Shall be according to EN 13611:2007+A2:2011, 6.1. 6.2 Mechanical parts of the control 6.2.1 Appearance Shall be according to EN 13611:2007+A2:2011, 6.2.1. 6.2.2 Holes Shall be according to EN 13611:2007+A2:2011, 6.2.2. 6.2.3 Breather holes Shall be according to EN 13611:2007+A2:2011, 6.2.3. 6.2.4 Test for leakage of breather holes Shall be according to EN 13611:2007+A2:2011, 6.2.4. 6.2.5 Screwed fastenings Shall be according to EN 13611:2007+A2:2011, 6.2.5. 6.2.6 Jointing Shall be according to EN 13611:2007+A2:2011, 6.2.6. 6.2.7 Moving parts Shall be according to EN 13611:2007+A2:2011, 6.2.7. 6.2.8 Sealing caps Shall be according to EN 13611:2007+A2:2011, 6.2.8. SIST EN 16304:2014



EN 16304:2013 (E) 7 6.2.9 Dismantling and reassembly Shall be according to EN 13611:2007+A2:2011, 6.2.9. 6.2.101 Design There shall be no exposed shafts or operating levers which could adversely affect the ability of valves to open. 6.2.102 Open position indicator switch Open position indicator switches, where fitted, shall not impair the correct operation of valves. Adjusters shall be sealed to indicate interference. Any drift of the switch and actuating mechanism from its setting shall not impair correct valve operation. 6.2.103 Controls assembled to a valve Other controls assembled to a valve shall not interfere with its opening function. 6.3 Materials 6.3.1 General material requirements Shall be according to EN 13611:2007+A2:2011, 6.3.1. 6.3.2 Housing Shall be according to EN 13611:2007+A2:2011, 6.3.2. 6.3.3 Test for leakage of housing after removal of non-metallic parts Shall be according to EN 13611:2007+A2:2011, 6.3.3. 6.3.4 Zinc alloys Shall be according to EN 13611:2007+A2:2011, 6.3.4. 6.3.5 Springs providing closing and/or sealing force EN 13611:2007+A2:2011, 6.3.5 is not applicable. 6.3.6 Resistance to corrosion and surface protection Shall be according to EN 13611:2007+A2:2011, 6.3.6. 6.3.7 Impregnation Shall be according to EN 13611:2007+A2:2011, 6.3.7. 6.3.8 Seals for glands for moving parts Shall be according to EN 13611:2007+A2:2011, 6.3.8. 6.3.101 Springs providing opening force Opening force shall be provided by spring action. SIST EN 16304:2014



EN 16304:2013 (E) 8 Springs providing the opening force for any closure member of the valve shall be designed for static and dynamic loading according to EN 13906-1 or EN 13906-2. Springs with a diameter up to and including 2,5 mm shall be made from corrosion-resistant materials. Springs with wire diameter above 2,5 mm shall be made either from corrosion-resistant materials or shall be protected against corrosion. 6.3.102 Closure members Closure members shall either have a mechanical support (e.g. metallic) to carry the opening force or shall be made of metal. 6.4 Gas connections 6.4.1 Making connections Shall be according to EN 13611:2007+A2:2011, 6.4.1. 6.4.2 Connection sizes Shall be according to EN 13611:2007+A2:2011, 6.4.2. 6.4.3 Threads Shall be according to EN 13611:2007+A2:2011, 6.4.3. 6.4.4 Union joints Shall be according to EN 13611:2007+A2:2011, 6.4.4. 6.4.5 Flanges Shall be according to EN 13611:2007+A2:2011, 6.4.5. 6.4.6 Compression fittings Shall be according to EN 13611:2007+A2:2011, 6.4.6. 6.4.7 Nipples for pressure test Shall be according to EN 13611:2007+A2:2011, 6.4.7. 6.4.8 Strainers Shall be according to EN 13611:2007+A2:2011, 6.4.8 with the following addition: Strainers fitted to valves of DN 25 and above shall be accessible for cleaning or replacement without removing the valve body by dismantling threaded or welded pipework. 6.5 Electronic parts of controls Shall be according to EN 13611:2007+A2:2011, 6.5. SIST EN 16304:2014



EN 16304:2013 (E) 9 6.6 Protection against internal faults for the purpose of functional safety Shall be according to EN 13611:2007+A2:2011, 6.6. 6.101 Pneumatic and hydraulic actuating mechanisms Pneumatically or hydraulically actuated valves shall be provided with protection to ensure that the blockage of an orifice in the control system does not adversely affect the performance requirements as given in Clause 7. 7 Performance 7.1 General Shall be according to EN 13611:2007+A2:2011, 7.1 with the following addition: Valves shall open automatically when de-energised or in the absence of actuating energy. Valves with DC supplies shall fulfil the requirements of this European Standard from the minimum rated voltage to the maximum rated voltage, as stated in the installation and operating instructions. For DC supplies type A, B, and C according to EN 13611:2007+A2:2011, I.1, a tolerance of 20 % to the minimum and the maximum rated voltage applies. For DC supplies of other types, the tolerance shall be stated in the installation and operating instructions. The electrical control valve of pneumatic or hydraulic actuating mechanisms shall also meet these requirements. The closing of pneumatically or hydraulically actuated valves shall be ensured over the range from 85 % to 110 % of the actuating pressure or pressure range as stated in the installation and operating instructions. 7.2 Leak-tightness Shall be according to EN 13611:2007+A2:2011, 7.2 with the following modification: Replace the values in the column for internal leak tightness by 1 dm³/h. 7.3 Test for leak-tightness 7.3.1 General Shall be according to EN 13611:2007+A2:2011, 7.3.1. 7.3.2 External leak-tightness Shall be according to EN 13611:2007+A2:2011, 7.3.2. 7.3.3 Inte
...