ASME SEC VIII DIV-2

Alternative Rules Design And Fabrication Of Pressure Vessels

ASME Section VIII, Division 2

Objective At the conclusion of this presentation we will be able to:

 –Describe the scope and contents of the ASME ASME Boiler & Pressure Vessel Code  –Describe the background and scope of Section VIII VIII Di!ision "  –Identif# the responsibilities of the $ser the Manufacturer and the Inspector   –Describe the re%uired contents and certification re%uireents of the $ser's $ser 's Design Specification and the Manufacturer's Design (eport

Objective At the conclusion of this presentation we will be able to:

 –Describe the scope and contents of the ASME ASME Boiler & Pressure Vessel Code  –Describe the background and scope of Section VIII VIII Di!ision "  –Identif# the responsibilities of the $ser the Manufacturer and the Inspector   –Describe the re%uired contents and certification re%uireents of the $ser's $ser 's Design Specification and the Manufacturer's Design (eport

Code Forard )*e# points  –+Construction,coprises aterials design fabrication e-aination inspection testing certification & pressure relief   – Codebook not a +handbook,.pro!ides iniu re%uireents/ it cannot replace education e-perience and the use of engineering 0udgent  – (ules a# be suppleented b# good practice and  0urisdictional re%uireents

Code Forard Continued!"  – Code neither re%uires nor prohibits use of coputer progras  – Code does not full# address tolerances  – Code onl# specifies tolerances that !alidate the design rules  – (ules do not appro!e recoend or endorse an# proprietar# or specific design

Division ( )Di!ision " rules  –1a!e higher allo2able stresses  –1a!e ore rigorous design3anal#sis re%uireents  –1a!e higher fabrication costs )42ner decides 2hich rules to use  –Di! 5 or Di! "  –$suall# based on cost of !essel

Organi)ation of Division 2 )Part 5 –6eneral (e%uireents )Part " –(esponsibilities and Duties )Part 7 –Materials (e%uireents )Part 8 –Design b# (ule (e%uireents )Part 9 –Design b# Anal#sis re%uireents )Part : –;abrication re%uireents )Part < –Inspection and E-aination re%uireents )Part = –Pressure >esting (e%uireents )Part ? –4!erpressure Protection )Mandator# and non@andator# re%uireents are pro!ided as norati!e and inforati!e anne-es respecti!el#to the specific Part under consideration

ASME Section VIII, Division 2

PAR*+( eneral Re-uire$ents

Sco%e of t'e Code )Definition of Pressure vessels (1.1.3)  –Containers for containent of pressure either internal or e-ternal )List of Excluded vessels (1..!)  –Vessels 2ithin scope of other Sections  –;ired process tubular heaters  –Integral parts of rotating or reciprocating echanical de!ices  –Piping coponents  –Coponents such as strainers i-ers separators pro!ided the  pressure containing parts are considered piping  –Vessels in 2ater ser!ice for certain cobinations of P and >  – 

Sco%e of t'e Code Continued!  –Vessels 2ith an internal or e-ternal pressure not e-ceeding 59 psi  –Vessels 2ith an inside diaeter not e-ceeding :,  –Pressure !essels for huan occupanc# )Exception  –E-cluded !essels a# be constructed and staped to Di! " if all re%uireents are et

Sco%e of t'e Code )"eo#etric $cope (1..3)  – here piping other PVs or de!ices connect to !essel 

;irst circuferential 2elded 0oint



>he first threaded 0oint



;ace of first flange

 – ;irst sealing surface of propriet# connections or fittings  – on@pressure parts Sub0ect to specific non@pressure re%uireents  – Pressure retaining co!ers and their fasteners for openings Such as anholes

Sco%e of t'e Code )ADD%&%'AL E*+%E,E&$ -' E/ 0%"0 PE$$+E E$$EL$ (1..) >he

rules of this Di!ision do not specif# a liitation on

 pressure but are not all@inclusi!e for all t#pes of construction ;or

!er# high pressures soe additions to these rules a# be

necessar# to eet the design principles and construction practices essential to !essels for such pressures 1o2e!er onl#

in the e!ent that after application of additional

design principles and construction practices the !essel still coplies 2ith all of the re%uireents of the Code a# it be staped 2ith the Certification Mark As

an alternati!e to this Di!ision Section VIII Di!ision 7

should be considered for the construction of !essels intended for operating pressures e-ceeding :=?9 MPa .5 psi/

Sco%e of t'e Code ) -%ELD A$$E,L/ '- E$$EL$ (1..2) ,a be followed b an of three procedure

a/>he Manufacturer of the !essel copletes the !essel in the field copletes the ;or A@5 Manufacturers Data (eport and staps the !essel

Sco%e of t'e Code ) -%ELD A$$E,L/ '- E$$EL$

Continued""  b/  >he

Manufacturer of parts of a !essel to be copleted in the

field b# soe other part# staps these parts in accordance 2ith Code rules and supplies the ;or A@" Manufacturers Partial Data (eport to the other part# 

>he other part# 2ho ust hold a !alid $" Certificate of AuthoriFation akes the final assebl# perfors the re%uired DE  perfors the final pressure test copletes the ;or A@5 Manufacturers Data (eport and staps the !essel

Sco%e of t'e Code ) -%ELD A$$E,L/ '- E$$EL$

Continued"" c/ >he

field portion of the 2ork is copleted b# a holder of a

!alid $" Certificate of AuthoriFation other than the !essel   Manufacturer  >he

Certificate holder perforing the field 2ork is re%uired

to suppl# a ;or A@" Manufacturers Partial Data (eport co!ering the portion of the 2ork copleted b# his organiFation .including data on the pressure test if conducted b# the Certificate holder perforing the field 2ork/ to the Manufacturer responsible for the Code !essel

Sco%e of t'e Code ) -%ELD A$$E,L/ '- E$$EL$

Continued"" c/ >he

!essel Manufacturer applies his Certification Mark 2ith

$" Designator in the presence of a representati!e fro his Inspection Agenc# and copletes the ;or A@5 Manufacturers Data (eport 2ith his Inspector esponsibilit(1..2.)

In all three alternati!es the part# copleting and signing the ;or A@5 Manufacturers Data (eport assues full Code responsibilit# for the !essel In all three cases each Manufacturers Gualit# Control S#ste shall describe the controls to assure copliance b# each Certificate holder 

ASME Section VIII, Division 2

PAR*+2 RESPO.SI#I/I*IES A.D D0*IES

Introduction >hree parties in!ol!ed 2ith construction of a Code  staped !essel $ser 

Manufacturer 

Inspector 



0ser Res%onsibilities (.)

It is the responsibilit# of the user or an a4ent actin4 on behalf of the user to pro!ide a certified $ser's Design Specification.$DS/ for each pressure !essel to be constructed in accordance 2ith this Di!ision  –Pro!ides basis for design and construction  –Specifies effecti!e Code Edition and Addenda  –Must be certified in accordance 2ith Anne- "A of Codebook  

Mini$u$ 0DS Re-uire$ents11 (..)

)Hocation of installation )urisdictional authorit# )En!ironental loads such as 2ind or earth%uake )Vessel identification )Ser!ice fluid and densit# )Vessel configuration including openings and ethod of support )Design conditions including design teperature design  pressure  iniu design etal teperature .MDM>/ dead and li!e loads )4perating conditions including operating pressure operating teperature ;luid transients and flo2

Mini$u$ 0DS Re-uire$ents11 Continued"" )C#clic conditions and nuber of associated c#cles )Materials of construction and ser!ice related re%uireents for the )Corrosion and3or erosion allo2ance )All loads and load cases )4!erpressure protection re%uireents )JJ >his is not a coplete list

Manufacturer Res%onsibilities (.3)

Assure structural and pressure retaining integrit# of the !essel )Meet all Code and $DS re%uireents )Ensure 2ork %ualit# of sub@contractors )Prepare and pro!ide Manufacturer's Design (eport .MD(/

Manufacturer’s Design Report (MDR). Miniu re%uireents  –;inal as@built dra2ings  –>he actual aterial specifications  –Design calculations and anal#sis

 Manufacturer Res%onsibilities Docuentation of design@b#@rule calculations in Part ! shall include the follo2ing .@a/ >he nae and !ersion of coputer soft2are if applicable .@b/ Hoading conditions and boundar# conditions used to address the load cases in the $ser's Design Specification .@c/ Material odels utiliFed for all re%uired ph#sical properties .@d/ Detailed calculations including results fro all of the applicable steps in the calculations sho2ing the acceptance criteria utiliFed to eet the re%uireents of this Di!ision .@e/ A suar# of the calculation results

 Manufacturer Res%onsibilities Docuentation of design@b#@anal#sis calculations in Part 5 shall include the follo2ingK .@a/ A detailed description of the nuerical ethod used including the nae and !ersion of coputer soft2are if   

applicable

.@b/ Description of odel geoetr# .including eleent t#pe for finite eleent anal#sis/ .@c/ Hoading conditions and boundar# conditions used to address the load cases in the $ser's Design Specification .@d/ Material odels utiliFed for all re%uired ph#sical properties ie odulus of elasticit# Poisson's ratio theral

 Manufacturer Res%onsibilities Continued"" .@e/ Description of 2hether aterial nonlinearit# is utiliFed in the anal#sis including a description of the aterial odel .ie stress@strain cur!e and c#clic stress@strain cur!e/ .@f/ Description of the nuerical anal#sis procedure likeL static

anal#sis

theral

anal#sis .teperature and stress/

 buckling natural

anal#sis

fre%uenc# anal#sis

d#naic

anal#sis

and 2hether a geoetricall# linear or nonlinear option is in!oked

 Manufacturer Res%onsibilities Continued"" .@g/ 6raphical displa# of rele!ant results  uerical

odel

Defored

plots

Contour

plots of theral and stress results

.@h/ Method used to !alidate the nuerical odel .@i/ Description of results processing perfored to establish nuerical anal#sis results .ie stress lineariFation ethod use of centroidal or nodal !alues for stress strain and teperature results/ .@0/ A suar# of the nuerical anal#sis results sho2ing the acceptance criteria utiliFed to eet the re%uireents of this Di!ision

 Manufacturer Res%onsibilities Continued"" .@k/Electronic storage of anal#sis results including input files and output files that contain nuerical anal#sis results utiliFed to deonstrate copliance 2ith the re%uireents of this Di!ision .@l/ >he results of an# fatigue anal#ses according to paragraph 99 as applicable .@/ An# assuptions used b# the Manufacturer to perfor the !essel design

 Manufacturer Res%onsibilities CE(>I;ICA>I4 4; S$BC4>(AC>ED SE(VICES (.3.6) ork

such as for#in47 nondestructive exa#ination7 heat treatin47 etc.7 #a be perfor#ed b others It is the !essel ,anufacturer8s responsibilit to ensure that all 2ork perfored coplies 2ith all the applicable re%uireents of this Di!ision Subcontracts

that involve weldin4 on the pressure boundar# coponents for construction under the rules of this Di!ision and for repair 2elds peritted b# the ASME shall be ade onl# to subcontractors holdin4 a valid + Certificate of AuthoriFation All such subcontracted 2elding shall be docuented on the ;or A@"

 Ins%ector Duties (.!.3)

)Assure all Code re%uireents are et )Conduct the follo2ing inspections .fro Anne-