1、BS ISO 23551-10:2016Safety and control devices for gas burners and gas-burning appliances ParticularrequirementsPart 10: Vent valvesBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 23551-10:2016 BRITISH STANDARDNational forewordThis British Standard is the UK i
2、mplementation of ISO 23551-10:2016.The UK participation in its preparation was entrusted to Technical Committee GSE/22, Safety and control devices for gas and oil burners and gas burning appliances.A list of organizations represented on this committee can be obtained on request to its secretary.This
3、 publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 91598 7 ICS 27.060.20 Compliance with a British Standard cannot confer
4、immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 23551-10:2016 ISO 2016Safety and control devices for gas burners and
5、 gas-burning appliances Particular requirements Part 10: Vent valvesDispositifs de commande et de scurit pour brleurs gaz et appareils gaz Exigences particulires Partie 10: Robinets dventINTERNATIONAL STANDARDISO23551-10First edition2016-08-01Reference numberISO 23551-10:2016(E)BS ISO 23551-10:2016I
6、SO 23551-10:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photo
7、copying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749
8、 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 23551-10:2016ISO 23551-10:2016(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 24 Classification 34.1 Classes of controls 34.2 Groups of controls 35 Test conditions . 36 Construction 36.1 General . 36
9、.2 Construction requirements 36.2.1 Appearance . 36.2.2 Holes . 36.2.3 Breather holes 36.2.4 Screwed fastenings 36.2.5 Jointing . 36.2.6 Moving parts 46.2.7 Sealing caps 46.2.8 Dismantling and reassembling for servicing and/or adjustment . 46.2.9 Auxiliary channels 46.2.10 Open position indicator sw
10、itch . 46.2.11 Controls assembled to a valve 46.3 Materials . 46.3.1 General material requirements . 46.3.2 Housing 46.3.3 Springs 46.3.4 Resistance to corrosion and surface protection . 46.3.5 Impregnation 56.3.6 Seals for glands for moving parts 56.3.7 Closure member . 56.4 Gas connections 56.4.1
11、Making connections 56.4.2 Connection sizes . 56.4.3 Threads 56.4.4 Union joints 56.4.5 Flanges 56.4.6 Compression fittings . 56.4.7 Nipples for pressure tests 56.4.8 Strainers 56.4.9 Pneumatic and hydraulic actuating mechanisms 57 Performance 67.1 General . 67.2 Leak-tightness 67.2.1 Criteria 67.2.2
12、 Test for leak-tightness . 67.3 Torsion and bending 67.4 Rated flow rate 67.5 Durability . 67.6 Functional requirements 67.6.1 Requirement 67.6.2 Test of opening function 7 ISO 2016 All rights reserved iiiContents PageBS ISO 23551-10:2016ISO 23551-10:2016(E)7.7 Endurance . 77.7.1 Requirement 77.7.2
13、Endurance test . 77.7.3 Endurance test for open position indicator switch 87.8 Opening force . 87.8.1 Requirement 87.8.2 Test of opening force 87.9 Opening time 87.9.1 Requirement 87.9.2 Test of opening time 87.10 Delay time and closing time . 87.10.1 Requirement 87.10.2 Test of delay time and closi
14、ng time 97.11 Open position indicator switch . 97.11.1 Requirement 97.11.2 Test of open position indicator switch 98 EMC/Electrical requirements . 99 Marking, installation and operating instructions 99.1 Marking . 99.2 Installation and operating instructions . 99.3 Warning notice . 10Annex A (inform
15、ative) Leak-tightness test Volumetric method .11Annex B (informative) Leak-tightness test Pressure-loss method 12Annex C (normative) Conversion of pressure loss into leakage rate .13Annex D (normative) Test for immunity to power-frequency magnetic fields14Annex E (normative) Specific regional requir
16、ements in European countries .15Annex F (normative) Specific regional requirements in Canada and USA .16Annex G (normative) Specific regional requirements in Japan .17Bibliography .18iv ISO 2016 All rights reservedBS ISO 23551-10:2016ISO 23551-10:2016(E)ForewordISO (the International Organization fo
17、r Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the
18、 right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The proced
19、ures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial
20、 rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights id
21、entified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanatio
22、n on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsibl
23、e for this document is ISO/TC 161, Control and protective devices for gas and/or oil burners and appliances.A list of all parts in the ISO 23551 series, published under the general title Safety and control devices for gas burners and gas-burning appliances Particular requirements, can be found on th
24、e ISO website. ISO 2016 All rights reserved vBS ISO 23551-10:2016ISO 23551-10:2016(E)IntroductionThis part of ISO 23551 is designed to be used in combination with ISO 23550. This part of ISO 23551 together with ISO 23550 establishes the full requirements as they apply to the product covered by this
25、part of ISO 23551. This part of ISO 23551 adapts ISO 23550, where needed, by stating “with the following modification,” “with the following addition,” “is replaced by the following” or “is not applicable,” in the corresponding clause. In order to identify specific requirements that are particular to
26、 this part of ISO 23551 that are not already covered by ISO 23550, this part of ISO 23551 may contain clauses or subclauses that are additional to the structure of ISO 23550. These clauses are numbered starting from 101 or, in the case of an Annex, are designated AA, BB, CC, etc.In an attempt to dev
27、elop a full International Standard, it has been necessary to take into consideration the differing requirements resulting from practical experience and installation practices in various regions of the world and to recognize the variation in basic infrastructure associated with gas and/or oil control
28、s and appliances, some of which are addressed in Annexes E, F and G. This part of ISO 23551 intends to provide a basic framework of requirements that recognize these differences.vi ISO 2016 All rights reservedBS ISO 23551-10:2016Safety and control devices for gas burners and gas-burning appliances P
29、articular requirements Part 10: Vent valves1 ScopeThis part of ISO 23551 specifies the safety, design, construction and performance requirements and testing for automatic vent valves (hereafter referred to as “valves”) for use with gas burners, gas appliances burning one or more gaseous fuels.This p
30、art of ISO 23551 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 (4”).This part of ISO 23551 is applicable to normally open valves, electrically operated valves and to valves actuated by fluids w
31、here the control valves for these fluids are actuated electrically, but not to any external devices for switching the control signal or actuating energy, and valves fitted with open position indicator switches.This part of ISO 23551 is not applicable to valves for burners and appliances using renewa
32、bles and/or waste gases (i.e. gases having corrosive characteristics),In case valves are in contact with renewables and/or waste gases, it is recommend to use this part of ISO 23551 only if explicit information is provided and relevant test methods and requirements are specified. valves for applianc
33、es intended to be installed in the open air and exposed to the outdoor environment, valves that are connected directly to mains pipe-work or to a container that maintains a standard distribution pressure, and valves suitable with oil.This part of ISO 23551 is applicable to type testing only.NOTE Pro
34、visions for final product inspection and testing by the manufacturer are not specified.2 Normative referencesThe 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
35、undated references, the latest edition of the referenced document (including any amendments) applies.ISO 23550:2011, Safety and control devices for gas burners and gas-burning appliances General requirementsINTERNATIONAL STANDARD ISO 23551-10:2016(E) ISO 2016 All rights reserved 1BS ISO 23551-10:201
36、6ISO 23551-10:2016(E)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 23550 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electroped
37、ia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1automatic vent valvedevice which closes when energized and opens automatically when de-energized3.2actuating mechanismpart of the valve which moves the closure member3.3open position indicator switchdevice fitted to a valve
38、which indicates when the closure member is in the open position3.4actuating energyrequired energy for the actuating mechanism to move the closure member to the closed positionNote 1 to entry: The actuating energy can have an external source (electrical, pneumatic or hydraulic) and can be transformed
39、 inside the valve.3.5opening forceforce required to open the valve, independent of any force provided by fuel gas pressure3.6frictional forcelargest force required to move the actuating mechanism and the closure member from the closed position to the open position with the opener spring removed, ind
40、ependent of any force provided by fuel gas pressure3.7actuating pressurehydraulic or pneumatic pressure supplied to the actuating mechanism of the valve3.8opening timetime interval between de-energising the valve and the closure member attaining the open position3.9closing timetime interval between
41、energising the valve and the closure member attaining the closed position3.10delay timetime interval between energising the valve and the start of the closure member moving to the closed position3.11control valvedevice which controls the fluid (e.g. compressed air) supplied to the actuating mechanis
42、m2 ISO 2016 All rights reservedBS ISO 23551-10:2016ISO 23551-10:2016(E)3.12rated voltagevoltage as stated in the installation and operating instructions at which the valve may be operated3.13rated currentcurrent as stated in the installation and operating instructions at which the valve may be opera
43、ted4 Classification4.1 Classes of controlsISO 23550:2011, 4.1 is not applicable.4.2 Groups of controlsThis subclause shall be according to ISO 23550:2011, 4.2.5 Test conditionsThis clause shall be according to ISO 23550:2011, Clause 5.6 Construction6.1 GeneralThis subclause shall be according to ISO
44、 23550:2011, 6.1.6.2 Construction requirements6.2.1 AppearanceThis subclause shall be according to ISO 23550:2011, 6.2.1.6.2.1.1 DesignThere shall be no exposed shafts or operating levers which could adversely affect the ability of valves to open.6.2.2 HolesThis subclause shall be according to ISO 2
45、3550:2011, 6.2.2.6.2.3 Breather holesThis subclause shall be according to ISO 23550:2011, 6.2.3.6.2.4 Screwed fasteningsThis subclause shall be according to ISO 23550:2011, 6.2.4.6.2.5 JointingThis subclause shall be according to ISO 23550:2011, 6.2.5. ISO 2016 All rights reserved 3BS ISO 23551-10:2
46、016ISO 23551-10:2016(E)6.2.6 Moving partsThis subclause shall be according to ISO 23550:2011, 6.2.6.6.2.7 Sealing capsThis subclause shall be according to ISO 23550:2011, 6.2.7.6.2.8 Dismantling and reassembling for servicing and/or adjustmentThis subclause shall be according to ISO 23550:2011, 6.2.
47、8.6.2.9 Auxiliary channelsThis subclause shall be according to ISO 23550:2011, 6.2.9.6.2.10 Open position indicator switchOpen 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
48、actuating mechanism from its setting shall not impair correct valve operation.6.2.11 Controls assembled to a valveOther controls assembled to a valve shall not interfere with its opening function.6.3 Materials6.3.1 General material requirementsThis subclause shall be according to ISO 23550:2011, 6.3
49、.1.6.3.2 HousingThis subclause shall be according to ISO 23550:2011, 6.3.2.6.3.3 SpringsISO 23550:2011, 6.3.3 is replaced by the following.Opening force shall be provided by spring action.Springs providing the opening force for any closure member of the valve shall be calculated and designed in such a way as to withstand oscillating loads and at least 106operations.If a satisfactory calculation cannot be submitted to the test laboratory, the springs shall be subjected to an endurance test of 2 106operations under
