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    PFI ES-36-2013 BRANCH REINFORCEMENT WORK SHEETS.pdf

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    PFI ES-36-2013 BRANCH REINFORCEMENT WORK SHEETS.pdf

    1、 PFI Standard ES-36 (Revised December 2013) BRANCH REINFORCEMENT WORK SHEETS Prepared by Pipe Fabrication Institute Engineering Committee All PFI Standards are advisory only. There is no agreement to adhere to any PFI Standard and their use by anyone is entirely voluntary. Copyright by PIPE FABRICAT

    2、ION INSTITUTE Dedicated to Technical Advancements and Standardization in the Pipe Fabrication Industry Since 1913 USA 511 Avenue of Americas, # 601 New York, NY 10011 CANADA 655, 32ndAvenue, # 201 Lachine, QC H8T 3G6 WEB SITE www.pfi-institute.org DESIGN CONDITIONS P psi Temp. FHEADER BRANCHMAT ERI

    3、AL SPEC.NOMINAL SIZE NhNbOUTSIDE DIAMETER DohDobNOMINAL WALL WhACTUALOR MIN. WALL ThTbALLOWABLE STRESS SEhSEbwith joint efficiencySee stresstable in B31.1Y COEFFICIENT YhYbTable 104.1.2WELD REDUCTION FACTOR WhWbADDITIONAL THICKNESS AhAbINTERSECTIONANGLE REINFORCING PADTHICKNESStrREQUIRED MINIMUM THC

    4、KNESS :LIMITS OF REINFORCEMENT :Select larger of the values, but not to exceed Doh2c61dSelect smaller of the values4c61LREQUIRED AND AVAILABLE REINFORCEMENT AREA :INSQ.sq in available . Additional Required: YesSubscript “o“ = Outside Diameter, Subscript “h“ = Header or Run, Subscript “b“ = BranchRev

    5、ised 2011c40c41c61c43c43c61hhhhohmhAPYWSEPDt2c40c41c61c43c43c61bbbbobmbAPYWSEPDt2c61c45c45c61c97sin)(21bbobATDdc61c43c45c43c45c61c61 2)()(112dATATorddhhbbc61c45c61 )(5.24 hhATLc61c43c45c61rbbtATL )(5.24c40c41 c61c45c180c180c45c61 )sin2(17c97dAtAhmhc61ftc61c6123)(ftAc61c43c43321AAAc61c45c45c180c61 )(

    6、2(121 mhhtTddAc61c45c61c97sin)(242mbbtTLAc40c41c61c162c61c16223 ftAc61c61c97sinobeDdc40c41c61c180c45c61rertdDA4c40c41c61c43c162c43c43c4343321AAAAAc40c41c61c162c61c16223 ftAc40c41c61c180c45c61robrtdDA5c40c41c61c43c162c43c43c4353321AAAAAADDITIONAL REINFORCEMENT WITH SADDLEReinforcementzoneReinforcemen

    7、tzoneBranch pipeor nozzleRun or headerBranchExample ANominalthicknessExcess wallin branchAdditionalthickness,see para.104.1.2(a.6)ANominalthicknessAdditionalthickness, AMill toleranceMill tolerancetmbtmhtrThTbDobDohExcess wallin headerBranch withoutreinforcement(for saddlesee Detail onnext page)Head

    8、er orrun pipeCCArea available reinforcement area (excess wall) in headerA1Explanation of areas:Area available reinforcement area (excess wall) in branchA2Area available reinforcement area fillet weld metalA3A3L4A6A1A2A3d2d2d1A2A3Ring or pad,Notes (1) and (2)A4Area pressure design area (expectedat th

    9、e end of service life)A6Area metal in saddle parallel to run (see Detail)A5Area metal in ring, pad, or integral reinforcementA4c34aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaREQUIRED MIN

    10、IMUM THCKNESS :LIMITS OF REINFORCEMENT :Select larger of the values, but not to exceed Doh2c61dSelect smaller of the values4c61LREQUIRED AND AVAILABLE REINFORCEMENT AREA :INSQ.sq in available . Additional Required: YesSubscript “o“ = Outside Diameter, Subscript “h“ = Header or Run, Subscript “b“ = B

    11、ranchRevised 2011ASME B31.3PROCESS PIPINGADDITIONAL REINFORCEMENTc40c41c61c162c6124 fBtAc61c61c98sinbeDdc40c41c61c180c45c61rerTdDA4c40c41c61c43c43c43c4344A432AAAAABc40c41 c61c45c180c180c45c61 )sin2(17c98dAtAhhc61c45c45c45c180c61 )(2(122 hhhctTddAc61c45c45c61c98sin)(243bbbctTLAc61c43c43A432AAAc61ftc6

    12、1c612A4)(ftAc61c45c45c61c98sin)(21bbbcTDdc61c43c45c43c45c61c61 2)()(112dcTcTorddhhbbc61c45c61 )(5.24 hhcTLc61c43c45c61rbbTcTL )(5.24c40c41c61c43c43c61hhhhhhAPYWSEPDt2c40c41c61c43c43c61bbbbbbAPYWSEPDt2DESIGN CONDITIONS P psi Temp. FHEADER BRANCHMATERIAL SPEC.NOMINAL SIZE N h NbOUTSIDE DIAMETER Dh DbN

    13、OMINAL WALL WhACTUAL OR MIN. WALL ThTbALLOWABLE STRESS SEhSEbwithjoint efficiencySee stress table inB31.1Y COEFFICIENT YhYbTable 104.1.2WELD REDUCTION FACTOR Wh WbADDITIONAL THICKNESS ch cbINTERSECTION ANGLE REINFORCING PADTHICKNESSTrTbtbtbWhCWbCbExcess wallin branchLimits ofReinforcementzoneRingof

    14、padA3A4A4AA4BdeL4De(Ring Dia.)d2d2BranchRunArea A -1Required reinforcement areaArea A - Excess wall in header2Area A - Excess wall in branch3Area A A complete list of PFI members and available membership CHARTER MEMBERS CONTRACTOR MEMBERS ASSOCIATE MEMBERS AFFILIATE MEMBERS HONORARY MEMBERS Associat

    15、e and Affiliate member contributors Walter Sperko Sperko Engineering Services, Inc. Greensboro, NC Thomas Warrelmann Victaulic Company of America Easton, PA Sheryl Michalak Welding Outlets, Inc. Houston, TX PFI Standards and Technical Bulletins are published to serve proven needs of the pipe fabrica

    16、ting industry at the design level and in actual shop operations. Hence, such needs are continually considered and reviewed by the Engineering Committee of the Pipe Fabrication Institute to provide recommended procedures, which have been demonstrated by collective experiences to fulfill requirements in a manner for Code compliance. However, as the PFI Standards are for minimum requirements the designer or fabricator always has the option of specifying supplementary conditions in the form of requirements beyond the scope of the PFI publications.


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