ANSI CSA AM Z21.41-2014 CSA 6.9-2014 Quick disconnect devices for use with gas fuel appliances (Fourth Edition).pdf

1、ANSI Z21.41-2014 CSA 6.9-2014Quick disconnectdevices for use with gasfuel appliancesLegal Notice for StandardsCanadian Standards Association and CSA America, Inc. (operating as “CSA Group”) develop standards through a consensus standardsdevelopment process approved by the Standards Council of Canada

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18、acceptance of the terms and conditions of this Legal Notice.Revision HistoryANSI Z21.41-2014 CSA 6.9-2014,Quick disconnectdevices for use withgas fuel appliancesRevision from previous edition Revision symbol (inmargin)Clauses 1.1, 1.2, 4.9, 4.9.1, 4.9.2, 4.9.3, 4.9.5, 4.9.6, 4.9.8, 4.9.9,5.1.1, 5.2.

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36、 Canadian Standards Association and CSA America Inc., operating as “CSA Group”American National Standards Institute, Inc.Interprovincial Gas Advisory CouncilApproved on January 13, 2014 by ANSIApproved on October 14,2013 by IGACEffective in Canada June 1, 2015Quick disconnectdevices for use withgas

37、fuel appliancesANSI Z21.41-2014 CSA 6.9-2014ANSI Z21.41-2014 CSA 6.9-2014Quick disconnect devices for use with gas fuel appliancesApril 2014 2014 CSA Group 1ContentsInterprovincial Gas Advisory Council 2CSA Technical Committee on Gas Appliances and Related Accessories 4Z21/83 Technical Committee on

38、Performance and Installation of Gas Burning Appliances and RelatedAccessories 6Z21/CSA Joint Technical Advisory Group on Manually Operated Gas Valves 9Preface 121 Scope 152 Reference publications 163 Definitions 174 Construction 174.1 General 174.2 Dimensions 184.3 Operation 184.4 Safety 194.5 Stren

39、gth 204.6 Materials 254.7 Assembly 254.8 Instructions 254.9 Marking 265 Performance 295.1 Leakage 295.2 Capacity 305.3 Durability at high temperatures 335.4 Continued operation 345.5 Season cracking 345.6 Low temperature operation 345.7 Marking material adhesion and legibility 356 Manufacturingand p

40、roduction tests 35Annex A (Normative) Items unique to Canada 36Annex B Table of conversion factors 37ANSI Z21.41-2014 CSA 6.9-2014Quick disconnect devices for use with gas fuel appliancesApril 2014 2014 CSA Group 2InterprovincialGas AdvisoryCouncilA. Ali Government of Nunavut Community c) Wording of

41、 the proposed change; andd) Rationale for the change.6) To submit a request for interpretation of this Standard, please send the following information toinquiriescsagroup.org and include “Request for interpretation” in the subject line:a) Define the problem, making reference to the specific clause,

42、and, where appropriate, include anillustrative sketch;b) Provide an explanation of circumstances surrounding the actual field condition; andc) Where possible, phrase the request in such a way that a specific “yes” or “no” answer will address theissue.d) Committee interpretations are processed in acc

43、ordance with the CSA Directives and guidelines governingstandardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.ANSI Z21.41-2014 CSA 6.9-2014Quick disconnect devices for use with gas fuel appliancesApril 2014 2014 CSA Group 13History of the developmen

44、t of ANSI Z21.412014 CSA 6.92014Note: This history is informative and is not part of the standard.With the onset of the Free Trade Agreement between the United States and Canada on January 2, 1988,significant attention was given to the harmonization of the United States and Canadian safety standards

45、addressing gas-fired equipment for residential, commercial and industrial applications. It was believedthat the elimination of the differences between the standards would remove potential trade barriers andprovide an atmosphere in which North American manufacturers could market more freely in the Un

46、itedStates and Canada. The harmonization of these standards was also seen as a step toward harmonizationwith international standards. Joint subcommittees were established to facilitate the standardsharmonization process between the United States and Canada.At its meeting of May 12-13, 1993 the Z21/C

47、GA Joint Subcommittee on Standards for Manually-OperatedValves and Quick-Disconnect Devices passed a motion requesting staff to prepare a draft binationalstandard for Quick Disconnect Devices For Use With Gas Fuel Appliances for public review and comment.The first draft harmonized standard was based

48、 on the current coverage from American National Standardfor Quick-Disconnect Devices For Use With Gas Fuel, ANSI Z21.41-1989,Addenda Z21.41a-1990,andZ21.41b-1992,and the National Standard of Canada for Quick Disconnect Devices For Use With Gas Fuel,CAN1-6.9-M79.The first draft was subsequently issue

49、d for public review during September and Octoberof 1995.Following reconsideration and modification of the proposed draft standard, in light of commentsreceived, the joint manual valves subcommittee, at its March 12-13, 1996 meeting, recommended theproposed draft to the Z21 Committee and the CGA Standards Steering Committee for approval.The proposed draft of the harmonized Standard for Quick-Disconnect Devices For Use With Gas FuelAppliances,as modified by the joint subcommittee at its meeting of March 12-13, 1996, was approved bythe Z21/83 Committee by let