1、Industrial valves Isolatingvalves for low-temperatureapplicationsPart 1: Design, manufacturing andproduction testingBS EN ISO 28921-1:2017(ISO 28921-1:2013)BSI Standards PublicationBS EN ISO 28921-1:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 28921-
2、1:2017. It is identical to ISO 28921-1:2013. It supersedes BS ISO 28921-1:2013 which is withdrawn.5PHFUIFSXJUI#4&/*40 JUBMTPTVQFSTFEFT#4&/XIJDIJTXJUIESBXOThe UK participation in its preparation was entrusted by Technical Committee PSE/18, Industrial valves, steam traps, actuators and safety devices
3、against excessive pressure, to PSE/18/1, Industrial valves, steam traps, actuators and safety devices against excessive pressure - Valves - Basic standards.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to includ
4、e all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 94527 4ICS 23.060.01Compliance with a British Standard cannot confer immunity from legal obligations.This Bri
5、tish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2013.Amendments/corrigenda issued since publicationDate Text affected31 March 2017 This corrigendum renumbers BS ISO 28921-1:2013 as BS EN ISO 28921-1:2017g8g24g21g18g19g8g4g17g3g22g23g4g17g7g4g2
6、1g7g3g17g18g21g16g8g3g8g24g21g18g19g50g8g17g17g8g3g8g24g21g18g19g34g12g22g6g11g8g3g17g18g21g16g3EN ISO 28921-1 g9g135g132g148g151g131g148g155g3g884g882g883g889g3g12g6g22g3g884g885g484g882g888g882g484g882g883g3 g22g151g146g135g148g149g135g134g135g149g3g8g17g3g883g884g887g888g889g483g884g882g882g882g8
7、g144g137g142g139g149g138g3g25g135g148g149g139g145g144g3g12g144g134g151g149g150g148g139g131g142g3g152g131g142g152g135g149g3g486g3g12g149g145g142g131g150g139g144g137g3g152g131g142g152g135g149g3g136g145g148g3g142g145g153g486g150g135g143g146g135g148g131g150g151g148g135g3g131g146g146g142g139g133g131g150g
8、139g145g144g149g3g486g3g19g131g148g150g3g883g483g3g7g135g149g139g137g144g481g3g143g131g144g151g136g131g133g150g151g148g139g144g137g3g131g144g134g3g146g148g145g134g151g133g150g139g145g144g3g150g135g149g150g139g144g137g3g523g12g22g18g3g884g890g891g884g883g486g883g483g884g882g883g885g524g3g21g145g132g1
9、39g144g135g150g150g135g148g139g135g3g139g144g134g151g149g150g148g139g135g142g142g135g3g486g3g21g145g132g139g144g135g150g149g3g134g821g139g149g145g142g135g143g135g144g150g3g146g145g151g148g3g131g146g146g142g139g133g131g150g139g145g144g3g157g3g132g131g149g149g135g149g3g150g135g143g146g177g148g131g150g
10、151g148g135g149g3g486g3g19g131g148g150g139g135g3g883g483g3g6g145g144g133g135g146g150g139g145g144g481g3g135g149g149g131g139g149g3g134g135g3g136g131g132g148g139g133g131g150g139g145g144g3g135g150g3g134g135g3g146g148g145g134g151g133g150g139g145g144g3g523g12g22g18g3g884g890g891g884g883g486g883g483g884g88
11、2g883g885g524g3g12g144g134g151g149g150g148g139g135g131g148g143g131g150g151g148g135g144g3g486g3g4g132g149g146g135g148g148g152g135g144g150g139g142g135g3g136g242g148g3g134g139g135g3g4g144g153g135g144g134g151g144g137g3g139g143g3g17g139g135g134g135g148g150g135g143g146g135g148g131g150g151g148g132g135g148g
12、135g139g133g138g3g486g3g23g135g139g142g3g883g483g3g4g151g149g142g135g137g151g144g137g481g3g9g135g148g150g139g137g151g144g137g481g3g19g148g145g134g151g141g150g139g145g144g149g146g148g242g136g151g144g137g3g523g12g22g18g3g884g890g891g884g883g486g883g483g884g882g883g885g524g3g23g138g139g149g3g8g151g148g
13、145g146g135g131g144g3g22g150g131g144g134g131g148g134g3g153g131g149g3g131g146g146g148g145g152g135g134g3g132g155g3g6g8g17g3g145g144g3g883g882g3g13g131g144g151g131g148g155g3g884g882g883g889g484g3g3g6g8g17g3g143g135g143g132g135g148g149g3g131g148g135g3g132g145g151g144g134g3g150g145g3g133g145g143g146g142g
14、155g3g153g139g150g138g3g150g138g135g3g6g8g17g512g6g8g17g8g15g8g6g3g12g144g150g135g148g144g131g142g3g21g135g137g151g142g131g150g139g145g144g149g3g153g138g139g133g138g3g149g150g139g146g151g142g131g150g135g3g150g138g135g3g133g145g144g134g139g150g139g145g144g149g3g136g145g148g3g137g139g152g139g144g137g3
15、g150g138g139g149g3g8g151g148g145g146g135g131g144g3g22g150g131g144g134g131g148g134g3g150g138g135g3g149g150g131g150g151g149g3g145g136g3g131g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148g134g3g153g139g150g138g145g151g150g3g131g144g155g3g131g142g150g135g148g131g150g139g145g144g484g3g24
16、g146g486g150g145g486g134g131g150g135g3g142g139g149g150g149g3g131g144g134g3g132g139g132g142g139g145g137g148g131g146g138g139g133g131g142g3g148g135g136g135g148g135g144g133g135g149g3g133g145g144g133g135g148g144g139g144g137g3g149g151g133g138g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148
17、g134g149g3g143g131g155g3g132g135g3g145g132g150g131g139g144g135g134g3g145g144g3g131g146g146g142g139g133g131g150g139g145g144g3g150g145g3g150g138g135g3g6g8g17g486g6g8g17g8g15g8g6g3g16g131g144g131g137g135g143g135g144g150g3g6g135g144g150g148g135g3g145g148g3g150g145g3g131g144g155g3g6g8g17g3g143g135g143g13
18、2g135g148g484g3g23g138g139g149g3g8g151g148g145g146g135g131g144g3g22g150g131g144g134g131g148g134g3g135g154g139g149g150g149g3g139g144g3g150g138g148g135g135g3g145g136g136g139g133g139g131g142g3g152g135g148g149g139g145g144g149g3g523g8g144g137g142g139g149g138g481g3g9g148g135g144g133g138g481g3g10g135g148g1
19、43g131g144g524g484g3g4g3g152g135g148g149g139g145g144g3g139g144g3g131g144g155g3g145g150g138g135g148g3g142g131g144g137g151g131g137g135g3g143g131g134g135g3g132g155g3g150g148g131g144g149g142g131g150g139g145g144g3g151g144g134g135g148g3g150g138g135g3g148g135g149g146g145g144g149g139g132g139g142g139g150g155
20、g3g145g136g3g131g3g6g8g17g3g143g135g143g132g135g148g3g139g144g150g145g3g139g150g149g3g145g153g144g3g142g131g144g137g151g131g137g135g3g131g144g134g3g144g145g150g139g136g139g135g134g3g150g145g3g150g138g135g3g6g8g17g486g6g8g17g8g15g8g6g3g16g131g144g131g137g135g143g135g144g150g3g6g135g144g150g148g135g3g
21、138g131g149g3g150g138g135g3g149g131g143g135g3g149g150g131g150g151g149g3g131g149g3g150g138g135g3g145g136g136g139g133g139g131g142g3g152g135g148g149g139g145g144g149g484g3g6g8g17g3g143g135g143g132g135g148g149g3g131g148g135g3g150g138g135g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148g134
22、g149g3g132g145g134g139g135g149g3g145g136g3g4g151g149g150g148g139g131g481g3g5g135g142g137g139g151g143g481g3g5g151g142g137g131g148g139g131g481g3g6g148g145g131g150g139g131g481g3g6g155g146g148g151g149g481g3g6g156g135g133g138g3g21g135g146g151g132g142g139g133g481g3g7g135g144g143g131g148g141g481g3g8g149g15
23、0g145g144g139g131g481g3g9g139g144g142g131g144g134g481g3g9g145g148g143g135g148g3g28g151g137g145g149g142g131g152g3g21g135g146g151g132g142g139g133g3g145g136g3g16g131g133g135g134g145g144g139g131g481g3g9g148g131g144g133g135g481g3g10g135g148g143g131g144g155g481g3g10g148g135g135g133g135g481g3g11g151g144g13
24、7g131g148g155g481g3g12g133g135g142g131g144g134g481g3g12g148g135g142g131g144g134g481g3g12g150g131g142g155g481g3g15g131g150g152g139g131g481g3g15g139g150g138g151g131g144g139g131g481g3g15g151g154g135g143g132g145g151g148g137g481g3g16g131g142g150g131g481g3g17g135g150g138g135g148g142g131g144g134g149g481g3g
25、17g145g148g153g131g155g481g3g19g145g142g131g144g134g481g3g19g145g148g150g151g137g131g142g481g3g21g145g143g131g144g139g131g481g3g22g135g148g132g139g131g481g3g22g142g145g152g131g141g139g131g481g3g22g142g145g152g135g144g139g131g481g3g22g146g131g139g144g481g3g22g153g135g134g135g144g481g3g22g153g139g150g
26、156g135g148g142g131g144g134g481g3g23g151g148g141g135g155g3g131g144g134g3g24g144g139g150g135g134g3g14g139g144g137g134g145g143g484g3g8g24g21g18g19g8g4g17g3g6g18g16g16g12g23g23g8g8g3g9g18g21g3g22g23g4g17g7g4g21g7g12g29g4g23g12g18g17g3g6g18g16g12g23g50g3g8g24g21g18g19g50g8g17g3g7g8g3g17g18g21g16g4g15g12
27、g22g4g23g12g18g17g3g8g24g21g18g19g34g12g22g6g11g8g22g3g14g18g16g12g23g8g8g3g9g111g21g3g17g18g21g16g24g17g10g3g3CEN-CENELECg3Management Centre: Avenue Marnix 17, B-1000 Brussels g825g3g884g882g883g889g3g6g8g17g3 g4g142g142g3g148g139g137g138g150g149g3g145g136g3g135g154g146g142g145g139g150g131g150g139g
28、145g144g3g139g144g3g131g144g155g3g136g145g148g143g3g131g144g134g3g132g155g3g131g144g155g3g143g135g131g144g149g3g148g135g149g135g148g152g135g134g3g153g145g148g142g134g153g139g134g135g3g136g145g148g3g6g8g17g3g144g131g150g139g145g144g131g142g3g16g135g143g132g135g148g149g484g3g21g135g136g484g3g17g145g48
29、4g3g8g17g3g12g22g18g3g884g890g891g884g883g486g883g483g884g882g883g889g3g8European foreword The text of ISO 28921-1:2013 has been prepared by Technical Committee ISO/TC 153 “Valves” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 28921-1:2017 by Technical
30、 Committee CEN/TC 69 “Industrial valves” the secretariat of which is held by AFNOR. 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 August 2017, and conflicting national standards shall be withdra
31、wn at the latest by August 2017. 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. EN ISO 28921-1 and EN ISO 28921-2 supersede EN 12567:
32、2000. 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 Republic of Macedonia, Franc
33、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 28921-1:2013 has been approved by CEN
34、as EN ISO 28921-1:2017 without any modification. BS EN ISO 28921-1:2017g8g17g3g12g22g18g3g884g890g891g884g883g487g883g483g884g882g883g889g3g525g8g526BS ISO 28921-1:2013ISO 28921-1:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope .12 Normative references 1g885g3 g
35、23g135g148g143g149g3g131g144g134g3g134g135g976g139g144g139g150g139g145g144g149 .24 Requirements 34.1 Materials .34.2 Design .45 Testing 105.1 Production testing with low-temperature test .106 Sampling .106.1 Lot requirements .10g888g484g884g3 g22g131g143g146g142g135g3g149g139g156g135 116.3 Lot accep
36、tance 117 Marking, labelling and packaging .11Annex A (normative) Test procedure for production testing of valves at low temperature 13Annex B (informative) Low-temperature test record 21Bibliography .23BS EN ISO 28921-1:2017g12g22g18g3g884g890g891g884g883g487g883g483g884g882g883g885g525g8g526BS ISO
37、 28921-1:2013ISO 28921-1:2013(E)Forewordg12g22g18g3g523g150g138g135g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g18g148g137g131g144g139g156g131g150g139g145g144g3g136g145g148g3g22g150g131g144g134g131g148g134g139g156g131g150g139g145g144g524g3g139g149g3g131g3g153g145g148g142g134g153g139g134g1
38、35g3g136g135g134g135g148g131g150g139g145g144g3g145g136g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148g134g149g3g132g145g134g139g135g149g3g523g12g22g18g3g143g135g143g132g135g148g3g132g145g134g139g135g149g524g484g3g23g138g135g3g153g145g148g141g3g145g136g3g146g148g135g146g131g148g139g1
39、44g137g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g149g3g139g149g3g144g145g148g143g131g142g142g155g3g133g131g148g148g139g135g134g3g145g151g150g3g150g138g148g145g151g137g138g3g12g22g18g3g150g135g133g138g144g139g133g131g142g3g133g145g143g143g139g150g150g135g13
40、5g149g484g3g8g131g133g138g3g143g135g143g132g135g148g3g132g145g134g155g3g139g144g150g135g148g135g149g150g135g134g3g139g144g3g131g3g149g151g132g140g135g133g150g3g136g145g148g3g153g138g139g133g138g3g131g3g150g135g133g138g144g139g133g131g142g3committee has been established has the right to be represente
41、d on that committee. International g145g148g137g131g144g139g156g131g150g139g145g144g149g481g3g137g145g152g135g148g144g143g135g144g150g131g142g3g131g144g134g3g144g145g144g486g137g145g152g135g148g144g143g135g144g150g131g142g481g3g139g144g3g142g139g131g139g149g145g144g3g153g139g150g138g3g12g22g18g481g3
42、g131g142g149g145g3g150g131g141g135g3g146g131g148g150g3g139g144g3g150g138g135g3g153g145g148g141g484g3g12g22g18g3g133g145g142g142g131g132g145g148g131g150g135g149g3g133g142g145g149g135g142g155g3g153g139g150g138g3g150g138g135g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g8g142g135g133g150g148g1
43、45g150g135g133g138g144g139g133g131g142g3g6g145g143g143g139g149g149g139g145g144g3g523g12g8g6g524g3g145g144g3g131g142g142g3g143g131g150g150g135g148g149g3g145g136g3g135g142g135g133g150g148g145g150g135g133g138g144g139g133g131g142g3g149g150g131g144g134g131g148g134g139g156g131g150g139g145g144g484g12g144g1
44、50g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g149g3g131g148g135g3g134g148g131g136g150g135g134g3g139g144g3g131g133g133g145g148g134g131g144g133g135g3g153g139g150g138g3g150g138g135g3g148g151g142g135g149g3g137g139g152g135g144g3g139g144g3g150g138g135g3g12g22g18g512g12g8g6g3g
45、7g139g148g135g133g150g139g152g135g149g481g3g19g131g148g150g3g884g484The main task of technical committees is to prepare International Standards. Draft International g22g150g131g144g134g131g148g134g149g3g131g134g145g146g150g135g134g3g132g155g3g150g138g135g3g150g135g133g138g144g139g133g131g142g3g133g1
46、45g143g143g139g150g150g135g135g149g3g131g148g135g3g133g139g148g133g151g142g131g150g135g134g3g150g145g3g150g138g135g3g143g135g143g132g135g148g3g132g145g134g139g135g149g3g136g145g148g3g152g145g150g139g144g137g484g3g19g151g132g142g139g133g131g150g139g145g144g3g131g149g3g131g144g3g12g144g150g135g148g144
47、g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g3g148g135g147g151g139g148g135g149g3g131g146g146g148g145g152g131g142g3g132g155g3g131g150g3g142g135g131g149g150g3g889g887g3g936g3g145g136g3g150g138g135g3g143g135g143g132g135g148g3g132g145g134g139g135g149g3casting a vote.g4g150g150g135g144g1
48、50g139g145g144g3g139g149g3g134g148g131g153g144g3g150g145g3g150g138g135g3g146g145g149g149g139g132g139g142g139g150g155g3g150g138g131g150g3g149g145g143g135g3g145g136g3g150g138g135g3g135g142g135g143g135g144g150g149g3g145g136g3g150g138g139g149g3g134g145g133g151g143g135g144g150g3g143g131g155g3g132g135g3g1
49、50g138g135g3g149g151g132g140g135g133g150g3g145g136g3g146g131g150g135g144g150g3g148g139g137g138g150g149g484g3g12g22g18g3g149g138g131g142g142g3g144g145g150g3g132g135g3g138g135g142g134g3g148g135g149g146g145g144g149g139g132g142g135g3g136g145g148g3g139g134g135g144g150g139g136g155g139g144g137g3g131g144g155g3g145g148g3g131g142g142g3g149g151g133g138g3g146g131g150g135g144g150g3g148g139g137g138g150g149g484g12g22g18g3g884g890g891g884g883g486g883g3g153g131g149g3g146g1
