BS EN 14570-2014 LPG equipment and accessories Equipping of overground and underground LPG vessels《液化石油气设备和附件 地上和地下液化石油气船舶装备》.pdf

1、BSI Standards PublicationBS EN 14570:2014LPG equipment and accessories Equipping of overgroundand underground LPG vesselsCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,

2、-,-BS EN 14570:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14570:2014. Itsupersedes BS EN 14570:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PVE/19, LPG containers and their associated fittings.A li

3、st 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 responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLim

4、ited 2014ISBN 978 0 580 79014 0ICS 23.020.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2014.Amendments issued since publicationDate Text affectedCopy

5、right British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14570:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14570 April 2014 ICS 23.020.30 Supersedes EN 14570:20

6、05English Version LPG equipment and accessories - Equipping of overground and underground LPG vessels quipements et accessoires GPL - quipement des rservoirs sous pression GPL ariens et enterrs Flssiggas-Gerte und Ausrstungsteile - Ausrstung von oberirdisch und unterirdisch aufgestellten Behltern fr

7、 Flssiggas (LPG) This European Standard was approved by CEN on 4 February 2014. 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 bi

8、bliographical 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 resp

9、onsibility 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 Re

10、public 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 COMIT EUROPEN DE NOR

11、MALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14570:2014 ECopyright British Standards Institution Provided by IHS und

12、er license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14570:2014EN 14570:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms, definitions and abbreviations 6 3.1 Terms and definition

13、s .6 3.2 Abbreviations .9 4 Pressure vessel equipment 9 4.1 General 9 4.2 Selection of pressure vessel equipment .9 4.3 Screwed joints . 10 4.4 Seals and gaskets . 10 5 Operational functions . 10 5.1 General . 10 5.2 Pressure relief . 11 5.2.1 General . 11 5.2.2 Isolating devices and manifolds . 12

14、5.2.3 Vent pipes 12 5.3 Drainage . 12 5.4 Liquid removal system . 12 5.5 Maximum fill indication/control . 13 5.5.1 General . 13 5.5.2 Fixed liquid level gauge . 13 5.5.3 Overfill protection device . 13 5.6 Filling system 13 5.7 Vapour off-take 13 5.8 Vapour return 13 5.9 Liquid off-take . 14 5.10 L

15、iquid return 14 5.11 Temperature indication 14 5.12 Pressure indication. 14 5.13 Liquid level indication 14 5.14 Road tanker potential bonding 14 5.15 Earthing . 15 6 Equipping 15 6.1 General . 15 6.2 Screwed joints . 15 6.3 Flanged joints 15 7 Checking and testing . 15 7.1 General . 15 7.2 Leak tig

16、htness . 16 7.3 Excess flow valve . 16 7.4 Completion and purging 16 8 Storage, handling and transportation. 16 9 Documentation 17 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license

17、from IHS-,-,-BS EN 14570:2014EN 14570:2014 (E) 3 Annex A (informative) Examples of alternative means of over pressure protection for underground/mounded pressure vessels . 18 Annex B (normative) Settings and discharge rates for PRVs and hydrostatic relief valves . 19 B.1 Setting . 19 B.2 Discharge r

18、ates 19 B.2.1 General . 19 B.2.2 Above ground pressure vessels 19 B.2.3 Underground/fully mounded pressure vessels 19 B.2.4 Semi-mounded pressure vessels 20 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC 21 Bibliography 22 C

19、opyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14570:2014EN 14570:2014 (E) 4 Foreword This document (EN 14570:2014) has been prepared by Technical Committee CEN

20、/TC 286 “Liquefied petroleum gas equipment and accessories”, the secretariat of which is held by NSAI. 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 October 2014, and conflicting national standa

21、rds shall be withdrawn at the latest by October 2014. 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 supersedes EN 1457

22、0:2005. 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

23、. The main modifications in comparison to EN 14570:2005 are: update of definitions taking into account the terminology document prepared by TC 286 WG11 (tanks replaced by pressure vessels ,etc); amendment A1 September 2006 included in new standard : paragraph 5.5.1 modified by addition of “or” at th

24、e end of the a) and b) paragraphs. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav

25、 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. Copyright British Standards Institution Provided by

26、IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14570:2014EN 14570:2014 (E) 5 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health if adequate precaut

27、ions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Protection of the environment is a key political issue in Europe and elsewhere. Protection of the environment is taken in a very broad sense. W

28、hat is meant is the total life cycle aspects of, e.g. a product on the environment, including expenditure of energy and during all phases from mining of raw materials, fabrication, packaging, distribution, use, scrapping, recycling of materials, etc. It is recommended that companies using this Europ

29、ean Standard develop an environmental management policy. For guidance see ISO 14000 series. It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced personnel. All pressures are gauge pressure. Copyrigh

30、t British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14570:2014EN 14570:2014 (E) 6 1 Scope This European Standard specifies requirements for the equipping of LPG pressure ve

31、ssels, overground and underground, with a volume not greater than 13 m3manufactured in accordance with EN 12542 or equivalent and have been hydraulically tested. The equipment covered by this European Standard is directly mounted onto the pressure vessel connections. This European Standard excludes

32、the equipping of depot storage pressure vessels and refrigerated storage vessels. 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 unda

33、ted references, the latest edition of the referenced document (including any amendments) applies. EN 751-2:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 2: Non-hardening jointing compounds EN 751-3:1996, Sealing materials for me

34、tallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 3: Unsintered PTFE tapes EN 12542:2010, LPG equipment and accessories - Static welded steel cylindrical tanks, serially produced for the storage of Liquefied Petroleum Gas (LPG) having a volume not greater than 1

35、3 m - Design and manufacture EN 13175:2003+A2:2007, LPG equipment and accessories - Specification and testing for Liquefied Petroleum Gas (LPG) tank valves and fittings EN 13799:2012, LPG equipment and accessories - Contents gauges for Liquefied Petroleum Gas (LPG) pressure vessels EN 14071:2004, Pr

36、essure relief valves for LPG tanks - Ancillary equipment EN 14129:2004, Pressure relief valves for LPG tanks EN ISO 10497:2010, Testing of valves Fire type-testing requirements (ISO 10497:2010) EN ISO 15995:2010, Gas cylinders Specifications and testing of LPG cylinder valves Manually operated (ISO

37、15995:2006) 3 Terms, definitions and abbreviations 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 liquefied petroleum gas LPG low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011, UN 1075, U

38、N 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane, butane isomers, butene with traces of other hydrocarbon gases Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitte

39、d without license from IHS-,-,-BS EN 14570:2014EN 14570:2014 (E) 7 3.1.2 pressure vessel assembly of the pressure envelope (including the openings and their closures) and non-pressure-retaining parts attached directly to it 3.1.3 underground pressure vessel pressure vessel below the surrounding grou

40、nd level and completely covered 3.1.4 overground pressure vessel pressure vessel above the surrounding ground level and not covered 3.1.5 fixed liquid level gauge control device, such as a dip tube in combination with a vent valve to indicate when a predetermined liquid level has been reached or sur

41、passed 3.1.6 depot storage vessel pressure vessel at an installation where LPG is stored before being transferred into road/rail tankers and/or LPG cylinders for distribution 3.1.7 remotely operated operated from a point at least 3 m from the vessel 3.1.8 drainage process of removal of residual vess

42、el content 3.1.9 liquid removal withdrawal of LPG from the vessel for a purpose different from the normal use of the LPG (e.g. removal of LPG for decommissioning, maintenance or in case of an emergency) 3.1.10 vapour service delivery of LPG in its vapour phase Note 1 to entry: Vapour service is also

43、 referred to as vapour off-take. 3.1.11 liquid service delivery of LPG in its liquid phase Note 1 to entry: Liquid service is also referred to as liquid off-take. 3.1.12 connection boss, flange, pad provided at an opening for the purpose of attaching equipment piping or pipe fittings 3.1.13 fail-saf

44、e shut-off valve valve that automatically returns to its safe position in case of actuating power failure or fire engulfment Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from I

45、HS-,-,-BS EN 14570:2014EN 14570:2014 (E) 8 3.1.14 shut-off valve valve to provide a leak-tight seal which is operated either manually, remotely or is self-closing 3.1.15 hydrostatic relief valve self-closing valve which automatically, without the assistance of any energy other than that of the fluid

46、 concerned, discharges fluid at a predetermined pressure 3.1.16 filler valve valve system for liquid fill service 3.1.17 overfill protection device OPD device designed to automatically reduce the filling rate to a minimal flow when the fill level reaches a predetermined amount Note 1 to entry: In au

47、tomotive applications, the predetermined amount is 80 % of the water capacity. 3.1.18 mounded vessel pressure vessel above or partially underground of which the part above the ground is completely covered 3.1.19 semi-mounded vessel pressure vessel above or partially underground of which the part abo

48、ve the ground is partially covered 3.1.20 pressure relief valve PRV self-closing valve which automatically, without the assistance of any energy other than that of the vapour concerned, discharges vapour at a predetermined pressure, and operates with a pop action Note 1 to entry: This is known as a

49、“safety valve” in ADR. 3.1.21 non-return valve valve designed to close automatically to restrict reverse flow 3.1.22 excess flow valve valve designed to close automatically, with a small residual flow, when the fluid flow passing through it exceeds a predetermined value, and to re-open when the pres