BS ISO 15364-2016 Ships and marine technology Pressure vacuum valves for cargo tanks《船舶和海洋技术 货槽用压力 真空阀》.pdf

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1、BSI Standards PublicationBS ISO 15364:2016Ships and marine technology Pressure/vacuum valves forcargo tanksBS ISO 15364:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 15364:2016.It supersedes BS ISO 15364:2007 which is withdrawn.The UK participation in it

2、s preparation was entrusted to TechnicalCommittee SME/32, Ships and marine technology - Steeringcommittee.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are

3、 responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 80996 5ICS 47.020.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStan

4、dards Policy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 15364:2016 ISO 2016Ships and marine technology Pressure/vacuum valves for cargo tanksNavires et technologie maritime Soupapes de pression/dpression pour citernes carg

5、aisonINTERNATIONAL STANDARDISO15364Third edition2016-04-15Reference numberISO 15364:2016(E)BS ISO 15364:2016ISO 15364:2016(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

6、be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, 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 r

7、equester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 15364:2016ISO 15364:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols and abbreviated terms .

8、35 Materials . 36 Other requirements 47 Type tests . 58 Flow and velocity tests . 68.1 Determination of capacity . 68.2 Capacity data 68.3 Test apparatus . 78.4 Flow measurements . 79 Undamped oscillation tests . 810 Production control and inspections . 911 Documentation . 911.1 General . 911.2 Inst

9、allation instructions . 1112 Marking .1213 Quality assurance .12Annex A (normative) Installation requirements for ships subject to the International Convention for the Safety of Life at Sea, 2009 (SOLAS) .13Annex B (normative) Flow test measurements 14Annex C (informative) Materials selection guidel

10、ines 16Annex D (informative) Corrosion protection guidelines 17Annex E (informative) Specification information 20Annex F (informative) Flow graph examples 21Annex G (informative) Relevant issues for reduction of volatile organic compound (VOC) losses during cargo handling 24Annex H (informative) Siz

11、ing guidelines .25Annex I (informative) Suggested guidelines for valve leakage .26Bibliography .27 ISO 2016 All rights reserved iiiContents PageBS ISO 15364:2016ISO 15364:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (I

12、SO 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 right to be represented on that committee. International organizations, gov

13、ernmental 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 procedures used to develop this document and those intended for its further mainte

14、nance 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 rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Atten

15、tion 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 identified during the development of the document will be in the Introduction

16、 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 explanation on the meaning of ISO specific terms and expressions related to conformi

17、ty assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee SC 3, Piping and mac

18、hinery.This third edition cancels and replaces the second edition (ISO 15364:2007), which has been technically revised.iv ISO 2016 All rights reservedBS ISO 15364:2016INTERNATIONAL STANDARD ISO 15364:2016(E)Ships and marine technology Pressure/vacuum valves for cargo tanks1 ScopeThis International S

19、tandard is applicable to pressure-vacuum relief valves protecting marine vessel systems, including cargo tanks, which may be subject to gas/vapour pressure or vacuum beyond the design parameters of the system/tank. This International Standard specifies the minimum requirements for performance and te

20、sting of pressure-vacuum relief valves, with emphasis on selection of materials, internal finish and surface requirements for pressure-vacuum valves installed on cargo tanks in tankers (see Annex A). This International Standard specifies design and in-service performance criteria, operational testin

21、g and maintenance requirements. Design or manufacturing in accordance with this International Standard does not imply suitability for any given installation, it indicates that certain minimum requirements have been considered and that information necessary for determination of suitability is provide

22、d to the buyer of the equipment.This International Standard does not cover all test procedures for devices that prevent the passage of flame, such as flame arresters. Such devices can be used in conjunction with pressure/vacuum valves.NOTE 1 Additional information for devices to prevent the passage

23、of flame is found in the International Maritime Organization (IMO) “International Convention for the Safety of Life at Sea, 2009” (SOLAS), Chapter II-2, Regulation 4, and IMO Maritime Safety Committee (MSC) Circular No. 677 (MSC/Circ. 677), “Revised Standards for the Design, Testing and Locating of

24、Devices to Prevent the Passage of Flame into Cargo Tanks in Tankers”, as amended.NOTE 2 In addition to providing pressure relief, high velocity vent valves are devices that prevent the passage of flame. Where high velocity vent valves are installed on the pressure relief system and the vacuum relief

25、 valve is protected by a flame arrester, the standards of IMO MSC/Circ. 677, as amended, are applicable. ISO 16852 is also an acceptable test standard for devices to prevent the passage of flame.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this do

26、cument 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.International Maritime Organization, Assembly Resolution A.746 (18), Survey Guidelines unde

27、r the Harmonized System of Survey and Certification. International Maritime Organization, International Convention for the Safety of Life at Sea (SOLAS), 2002, Chapter II-2, Regulation 4International Maritime Organization (IMO), International Convention for the Safety of Life at Sea (SOLAS), 20093 T

28、erms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1flame arresterdevice to prevent the passage of flame, designed and tested in accordance with a specified performance standardNote 1 to entry: Its flame-arresting unit is based on the principle of quen

29、ching. ISO 2016 All rights reserved 1BS ISO 15364:2016ISO 15364:2016(E)3.2dual nozzle valvepressure relief valve that features two high velocity vents with different opening settings integrated into one valve, the flow characteristics of which may be one or more of the types defined below3.3full ope

30、ning valvedesign that opens fully at the set pressure3.4high velocity ventdevice to prevent the passage of flame, consisting of a mechanical valve which adjusts the opening available for flow in accordance with the pressure at the inlet of the valve in such a way that the efflux velocity cannot be l

31、ess than 30 m/s (98 ft/sec)3.5maximum experimental safe gapMESGmaximum clearance of the joint between two parts of the interior chamber of a test apparatus which, when the internal gas mixture is ignited and under specified conditions, prevents ignition of the external gas mixture through a 25 mm (1

32、 in) long joint, for all concentrations of the tested gas or vapour in airNote 1 to entry: IEC 60079-20-1 standardizes the test apparatus and the test method.3.6maximum verified pressure droplargest pressure drop generated over a valve for which the test laboratory verifies the corresponding flow ca

33、pacity3.7modulating valvedesign that opens proportionally with rise in pressure3.8pressure-vacuum valvedevice designed to maintain pressure and/or vacuum in a closed container within preset limits3.9standard airdry air at 21 C (70 F) and 1 013,25 hPa (29,92 in Hg) pressureNote 1 to entry: This is su

34、bstantially equivalent to a density of 1,2 kg/m3(0,075 lb/ft3). Specific heat of dry air = 1 004,8 J/(kg.K) 0,24 Btu/(lb.R.3.10third party inspection bodyorganization which is independent from the manufacturer or user and which performs or witnesses the tests and inspections provided for by this Int

35、ernational Standard3.11transition point valvedesign where the valve characteristics change from modulating to full opening at a particular pressure3.12verified drawings and diagramsdrawings and diagrams certified to be authentic and complete by the test laboratory issuing the test report in accordan

36、ce with this International Standard2 ISO 2016 All rights reservedBS ISO 15364:2016ISO 15364:2016(E)3.13verified flow chartpressure versus flow volume presented in a chart certified by the test laboratory issuing the test report in accordance with this International Standard4 Symbols and abbreviated

37、termsD nominal pipe diameter at device connection Dminminimum diameter of the piping between the device and the tank allowed for non-oscillating performanceLmaxmaximum length of the piping between the device and the tank allowed for non-oscillating performanceL1pipe length between test tank and the

38、device for flow testing L2pipe length between test tank and the device during non-oscillation testing Pclosingpressure drop over the valve corresponding to the minimum flow required to keep the valve partially open with no contact between the disc and the seat Pmaxmaximum pressure drop corresponding

39、 to the maximum flow volume (Q3)Psetset pressure, expressed as the calculated force applied to the disc versus the area on which tank pressure is appliedP1-tpvpressure at which a transition point valve changes from modulating to full opening Q1-fovflow volume needed to open the valve Q2flow volume n

40、eeded for the valve to remain fully open Q2-fovflow volume needed to maintain the valve fully open at PsetQ1-mvflow volume needed to open the valveQ2-mvflow volume needed to maintain the valve fully openQ1-tpvflow volume at which a transition point valve changes from modulating to full opening Q2-tp

41、vflow volume needed to maintain a transition point valve fully open at P1-tpvQ3flow volume corresponding to the maximum intended pressure drop over the valveQcloseminimum flow required to keep the valve partially open with no contact between the disc and the seatVminminimum volume of the tank allowe

42、d for non-oscillating performance5 Materials5.1 The device housing, and other parts or bolting used for pressure retention, shall be constructed of materials suitable for the intended service and listed in a recognized National/International Standard. Housings, discs, spindles, seats, springs, gaske

43、ts, seals, flame arresters (when included in the design) and all other integral parts, including parts with coatings to prevent corrosion, shall be resistant to attack by sea water and the liquids and vapours contained in the tank being protected (see Annex C). Springs plated with corrosion resistan

44、t material are not acceptable. ISO 2016 All rights reserved 3BS ISO 15364:2016ISO 15364:2016(E)5.2 Non-metallic materials, other than gaskets, seals and diaphragms as allowed by 6.11, shall not be used in the construction of pressure retaining components of the device. Resilient seals may be install

45、ed only if the device is still capable of effectively performing its flame arresting function when the seals are worn down, partially or completely damaged or burned. Non-metallic gaskets shall be made of non-combustible material and suitable for the service intended.5.3 Materials for connecting pre

46、ssure-vacuum valves to their respective piping systems should meet standards for physical characteristics similar to those of the piping systems to which they are connected.5.4 The possibility of galvanic corrosion shall be considered in the selection of materials (see Annex D for additional conside

47、rations).5.5 The verified drawings shall include a complete bill of materials showing conformity with this subclause and any other material requirements listed in Clause 6.6 Other requirements6.1 The maximum gas leakage rate shall be provided and expressed as the volume in standard air that may leak

48、 from the valve at 75 % of the nominal setting as determined by the manufacturer. See Annex I for suggested leakage rates.6.2 Housings, elements, and seal gasket materials shall be capable of withstanding the maximum and minimum pressures and temperatures to which the device may be exposed under nor

49、mal operating conditions.6.3 Where welded construction is used for pressure retaining components, welded joint design details, welding and non-destructive testing shall be in accordance with National or International Standards. Welding procedures should be in accordance with the ISO 15607 series. Welders should be qualified according to the ISO 9606 series. Non-destructive testing should comply with ISO 5817.Alternative equivalent National/International Standards may be used.6.4 End-of-line pressure-vacuum valves shall be designed, such that condense