NFPA 67-2016 Guide on Explosion Protection for Gaseous Mixtures in Pipe Systems (Effective Date 12 4 2015).pdf

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29、 more information about NFPA, visit the NFPA website at www.nfpa.org. All NFPA codes and standards can be viewed at no cost at www.nfpa.org/freeaccess.67-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169

30、. Copyright 2015 National Fire Protection Association . All Rights Reserved. NFPA 67 Guide on Explosion Protection for Gaseous Mixtures in Pipe Systems 2016 Edition This edition of NFPA 67, Guide on Explosion Protection for Gaseous Mixtures in Pipe Systems, was prepared by the Committee on Explosion

31、 Protection Systems. It was issued by the Standards Council on November 14, 2015, with an effective date of December 4, 2015, and supersedes all previous editions. This edition of NFPA 67 was approved as an American National Standard on December 4, 2015. Origin and Development of NFPA 67 In 1965, an

32、 NFPA Committee was appointed to develop standards for explosion protection systems. The standards were to include information on explosion prevention and mitigation in vessels, ducts, and buildings, focusing primarily on deagrations. During a meeting in 1997, the committee rst considered the subjec

33、t of protection against detonations in manifold pipe networks out of concern for the proliferation of vapor recovery systems at ammable liquid transfer stations. In 1999, the Standards Council approved the creation of a new document to address this issue, and the rst draft of NFPA 67 was presented i

34、n 2011. Following a period of public review and comment, NFPA 67, Guide on Explosion Protection for Gaseous Mixtures in Pipe Systems, was issued in 2013. The 2016 edition expands the section on detonation forces on pipes, provides additional guidance on the proper application of detonation arresters

35、, and provides references to address the design of piping systems that are outside the scope of the guide.EXPLOSION PROTECTION FOR GASEOUS MIXTURES IN PIPE SYSTEMS 67-2 2016 Edition Technical Committee on Explosion Protection Systems Larry D. Floyd, Chair BASF, AL U Luke S. Morrison, Secretary Profe

36、ssional Loss Control Inc., Canada SE Venkateswara Sarma Bhamidipati, Powder Process Solutions, MN IM Martin P. Clouthier, Clouthier Risk Engineering, Canada SE Michael Davies, PROTEGO, Germany M Alexi I. Dimopoulos, ExxonMobil Corporation, VA U Henry L. Febo, Jr., FM Global, MA I Robert J. Feldkamp,

37、 Nordson Corporation, OH M Joseph P. Gillis, Westboro, MA SE Dan A. Guaricci, ATEX Explosion Protection, L.P., FL M Michael D. Hard, Hard Fire Suppression Systems, Inc., OH IM Rep. Fire Suppression Systems Association David D. Herrmann, E. I. DuPont de Nemours & Company, DE U Alfonso F. Ibarreta, Ex

38、ponent, Inc., MA SE Eric R. Johnson, Savannah River Nuclear Solutions, LLC, SC U David C. Kirby, Baker Engineering & Risk Consultants, Inc., WV SE Steven A. McCoy, Ingredion, IN U Rep. NFPA Industrial Fire Protection Section James O. Paavola, DTE Energy/Detroit Edison Company, MI U Stefan Penno, Rem

39、be GmbH Safety & Control, Germany M Samuel A. Rodgers, Honeywell, Inc., VA U Mitchel L. Rooker, BS&B Safety Systems, LLC, OK M Cleveland B. Skinker, Bechtel Power Corporation, MD SE Bill Stevenson, CV Technology, Inc., FL M David R. Stottmann, ST Storage, KS M Stephen M. Stuart, Hylant Group, MI I J

40、rme R. Taveau, Fike Corporation, MO M David E. Trull, XL Global Asset Protection Services, WA I Erdem A. Ural, Loss Prevention Science & Technologies, Inc., MA SE Robert G. Zalosh, Firexplo, MA SE Alternates Geof Brazier, BS&B Safety Systems, LLC, OK M (Alt. to Mitchel L. Rooker) Randal R. Davis, IE

41、P Technologies, MA M (Voting Alt. to IEP Technologies) Todd A. Dillon, XL Global Asset Protection Services, OH I (Alt. to David E. Trull) Thomas Heidermann, Braunschweiger Flammenlter G, Germany M (Alt. to Michael Davies) Kirk W. Humbrecht, Phoenix Fire Systems, Inc., IL IM (Alt. to Michael D. Hard)

42、 Edward L. Jones, Nordson Corporation, OH M (Alt. to Robert J. Feldkamp) Jason Krbec, CV Technology, Inc., FL M (Alt. to Bill Stevenson) John A. LeBlanc, FM Global, MA I (Alt. to Henry L. Febo, Jr.) Gerd Ph. Mayer, Rembe, Inc., NC M (Alt. to Stefan Penno) Keith McGuire, CST Storage, KS M (Alt. to Da

43、vid R. Stottmann) Timothy J. Myers, Exponent, Inc., MA SE (Alt. to Alfonso F. Ibarreta) Thomas C. Scherpa, The DuPont Company, Inc., NH U (Alt. to David D. Herrmann) Jef Snoeys, Fike Corporation, Belgium M (Alt. to Jrme R. Taveau) James Kelly Thomas, Baker Engineering & Risk Consultants, Inc., TX SE

44、 (Alt. to David C. Kirby) William B. Till, Jr., Savannah River Nuclear Solutions, LLC, SC U (Alt. to Eric R. Johnson) Nonvoting Franz Alfert, Inburex Consulting, Germany SE Laurence G. Britton, Process Safety Consultant, WV SE Vladimir Molkov, University of Ulster, Northern Ireland, UK SE Barry Chas

45、e, NFPA Staff Liaison This list represents the membership at the time the Committee was balloted on the nal text of this edition. Since that time, changes in the membership may have occurred. A key to classications is found at the back of the document. NOTE: Membership on a committee shall not in an

46、d of itself constitute an endorsement of the Association or any document developed by the committee on which the member serves. Committee Scope: This Committee shall have primary responsibility for documents on explosion protection systems for all types of equipment and for buildings, except pressur

47、e venting devices designed to protect against overpressure of vessels such as those containing ammable liquids, liqueed gases, and compressed gases under re exposure conditions, as now covered in existing NFPA standards.CONTENTS 67-3 2016 Edition Contents Chapter 1 Administration 67 4 1.1 Scope. . 6

48、7 4 1.2 Purpose. . 67 4 1.3 Piping Installation and Maintenance. . 67 4 1.4 Applications. 67 4 Chapter 2 Referenced Publications 67 4 2.1 General. . 67 4 2.2 NFPA Publications. . 67 4 2.3 Other Publications. . 67 4 2.4 References for Extracts in Advisory Sections. 67 6 Chapter 3 Denitions 67 6 3.1 G

49、eneral. . 67 6 3.2 NFPA Ofcial Denitions. 67 6 3.3 General Denitions. 67 6 Chapter 4 Fundamentals of Deagrations . 67 7 4.1 General. . 67 7 4.2 Flammable Limits. . 67 8 4.3 Burning Velocity. . 67 8 4.4 Flame Speed. . 67 8 4.5 Mixtures. 67 8 Chapter 5 Principles of Detonations 67 9 5.1 Properties. . 67 9 5.2 Detonation Cells and Mixture Composition Limits. 67 9 5.3 Chapman-Jouguet (CJ) Detonations. 67 10 5.4 Detonation Development from