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Oct 31,2005 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;Per QW-403.6 the 5/8 to 2T limits pertains to the base metal thickness.If the flange thickness is greater than or equal to 5/8 (16mm) qualification on 1 1/2-inch thick coupons will qualify you to weld on flanges having a thickness range from 5/8 to 8asme 2019 sec viii div 1 key changes Pipe (Fluid Translate this pageASME BPVC.Section VIII Division 1 Key Changes 2019 Edition.Ren ASME SEC VIII DIV 2 Nominal Thickness of Flanges#233; Uebel 16 July 2019.This Photo by Unknown Author is licensed under CC BY-SA Overview U-2(g) Guidance when Rules are not contained in VIII-1 and UG-16,Appendix 46 Alternative Design Rules U-4 Units Used in Equations,Appendices 33 and GG UG-14 and Mandatory Appendix 2,2-2(d) Parts Machined from Rod and BarWhy It's Time to Reconsider ASME VIII-2 (Division 2 Beginning with the 2017 Edition of the ASME VIII-2 Code,it is now less expensive to build most medium size and larger carbon steel pressure vessels to Division 2,Class 1 instead of Division 1.Division 2 does this by introducing a new Class 1 vessel designation.

ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;Flanges of unlisted materials and flanges not covered by the above standards shall be designed in accordance with ASME Section VIII Div 1,Appendix 2,and for blind flanges,in accordance with ASME Section VIII Div 1,Section UG-34; Tolerances for flanges shall be in accordance with ASME B16.5,section 7 for flanges up to NPS 24,and ASME B16 Under-designed swivel ring flanges potential pipeline Case HistoriesLarger ProblemLack of StandardsComparison of DesignsProposed RemediesA swivel ring flange failure occurred in the Gulf of Mexico about 10 years ago.In this case,a flanged connection on a gas riser was leaking.The divers reported that the gas bubbles appeared to be emanating from the ring gasket area between the flange,a circumstance that would usually indicate the need for additional bolt tightening.A diver applied increased bolt torque to the leaking flange.Suddenly,the flange failed.The resulting explosion killed the diver.Detailed information on the incident was not reSee more on offshore-magComparison on Mechanical Behavior of Bolted Flanges -May 21,2012 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;The allowable stress for 2.25Cr 1Mo 0.25V steel per ASME Section VIII Div.2 2007 edition (hereinafter called New Div2) becomes higher than that per old Div.2.Therefore the thickness of flange can be thinner than that per old Div.2.The internal fluid leakage is main concern as well as stress level especially for large size flanges per New Div.2.U-2(g) and Appendix 46 Address ASME Div 1 GapsThe 2019 code includes several changes within U-2(g) and the addition of Appendix 46.Appendix 46 allows Div 1 vessels to use Div 2 design methods,with some caveats.For design by rule,this boils down to using the Div 2 equations with the Div 1 allowable stresses per UG-23; for compressive strength though,the Div 2 values are used instead.

Dimensions ASME Section VIII Division 1 Sizes 1/2 thru 24 Materials All material grades Hole Depth Flange Thickness Thread Depth Outer Diameter Bolt Circle Raised Face Bore CLASS 150 SIZE BORE FLANGE THCK OUTER DIAMETER RAISED FACE BOLT CIRCLENO.OF HOLES HOLE SIZE HOLE DEPTH STUD BOLT THRD SIZE T.P.I.THRD DEPTH 1/2 1.250 3.500 1.375 Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextPurpose of the Flange Bolt Rules in ASME VIII and ASME III Jan 11,2018 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;The partial objective of the ASME Appendices ASME VIII Div.1 Appendix 2,and ASME III Div.1 Appendix XI provide Rules for Bolted Flange Connections with ring-type gaskets.One of the rules provided applies to the calculation of the minimum required bolt area.In other words,what should be the minimum combined cross-section area of the []

Jan 11,2018 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;The partial objective of the ASME Appendices ASME VIII Div.1 Appendix 2,and ASME III Div.1 Appendix XI provide Rules for Bolted Flange Connections with ring-type gaskets.One of the rules provided applies to the calculation of the minimum required bolt area.In other words,what should be the minimum combined cross-section area of the []Post Weld Heat Treatment (PWHT) Requirement as per ASME PWHT requirements as per ASME Sec.VIII Div.1 Except as otherwise specifically provided in notes of tables UCS-56-1 through UCS-56-11 or Table UCS-56.1,all welds in pressure vessels or pressure vessel parts shall be given a post weld heat treatment at a temperature not less than specified in those tables when the nominal thickness including People also askWhat is ASME VIII Div.1?What is ASME VIII Div.1?ASME VIII Div.1 Appendix 2,and ASME III Div.1 Appendix XI provide Rules for Bolted Flange Connections with ring-type gaskets.One of the rules provided applies to the calculation of the minimum required bolt area.Purpose of the Flange Bolt Rules in ASME VIII and ASME III

Feb 01,2017 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;Non-standard flanges are designed and calculated according to ASME VIII Div.1 Appendix 2 and Appendix S,and according to ASME VIII Div.2 part 4.16.Design criteria Rules for the design of bolted flange connections as described in Div.1 Appendix 2 apply to flangesMaximum Allowable Stress Values - ASME Code Section II A2 Section VIII-1 Pressure Vessels; A3 ASME Code Section VIII,Division 2 - Alternative Rules; A4 ASME Code Section VIII,Division 1 Workshop - Design Calculation of Pressure Vessels; A5 Workshop How to pass an ASME Joint Review; A6 Material Requirements of the ASME Code; A7 ASME Code Section IX - Welding; A8 ASME B31.3 and B31.1 - PipingMaximum Allowable Stress Values - ASME Code Section II A2 Section VIII-1 Pressure Vessels; A3 ASME Code Section VIII,Division 2 - Alternative Rules; A4 ASME Code Section VIII,Division 1 Workshop - Design Calculation of Pressure Vessels; A5 Workshop How to pass an ASME Joint Review; A6 Material Requirements of the ASME Code; A7 ASME Code Section IX - Welding; A8 ASME B31.3 and B31.1 - Piping

14 hours ago ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;As per section 304.1.2 of ASME B 31.3,straight pipe thickness calculation under internal pressure is divided into two different conditions (a) If t D/6 Fig.2 Pipe Thickness Calculation Equation (3a) Under Internal Design Pressure per ASME B 31.3 (b) If t D/6 or for P/SE ASME SEC VIII DIV 2 Nominal Thickness of Flangesgt; 0.385 Pipe Thickness Calculation for Internal Pressure Loose-type flanges ASME Code Section VIII,Division 1 19 rows ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;A2 Section VIII-1 Pressure Vessels; A3 ASME Code Section VIII,Division 2 - Alternative Login Page - American Society of Mechanical EngineersPowered by Conference Toolbox version 4.0.For more information,contact us. CS Connect Login

When we refer to an Insert Flange as ASME rated we are stating that calculations conforming to the ASME Boiler and Pressure Vessel Code,Section VIII,Division 1,have been performed which determine minimum flange thickness to meet ASME B16.5 PSIG at material group 2.2 (see table 1).These calculations are based on the use of carbon steel to SA IB20-008 Justification of SA-105 Flanges for Low Temp ASME Section VIII-2.Although discussion herein is limited to the changes as introduced in Section VIII-1,similar attention is warranted to Section VIII-2 applications.Reassignment of SA-105 Flanges from Figure UCS-66 Curve B to Curve A SA-105 material used for flanges has been reassigned from Figure UCS-66 curve B to curveGuidelines for Selection of Various Types of Flanges These flanges are supplied with a 0.06 inch raised face,which is included in the minimum flange thickness.The finished height of the face shall be less than the nominal pipe wall thickness.Flanges in classes over 600 are supplied with a 0.25 inch raised face that is additional to the minimum flange thickness.

The flange leakage calculation can be performed in many ways,the most common are Equivalent pressure method,ASME Sec VIII Div 1 or 2 and ASME Sec III NB or NC method.This Article deals about Flange leakage calculation done using ASME Sec VIII method in CeaserII.Flange Leakage checking in Caesar II using ASME Section Aug 12,2019 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;Inputs for ASME Sec VIII Flange Leakage Checking.The following codes and standards are required for data input in the Caesar II flange leakage spreadsheet while performing the ASME Sec VIII method.ASME B 16.5/ASME B 16.47- Latest Edition (For Flange Data) ASME B 16.20- Latest Edition (For Gasket Data)Flange Input Dialog Box - PV Elite - Help - Hexagon PPMDisregard Bolt Space Correction Factor for ASME Flange Design; Use ASME Code Case 2260/2261; Use Eigen Solver; Use Pre-99 Addenda (ASME VIII-1 only) Use 2004 A-06 Addenda for Division 2; For ASME VIII,Shell Head Joints Are Tapered; For ASME VIII-1,Use Table G Instead of Exact Equation for A Use Nominal Head Thickness When Computing

The main reason for doing this exercise was that the Pressure Temperature of this flange is above what ASME B16.5 allows for a Class 600 flange.Calculations are presented as PDF with formulas visible so it becomes easy for someone to check them against ASME Section VIII Division 1 and Division 2.File Size 1MBPage Count 3Mukesh Shah - Pipe flanges that are made to standards The gasket type and bolt type are generally specified by the standard(s); however,sometimes the standards refer to the ASME Boiler and Pressure Vessel Code (BPVC) for details (see ASME Code Section VIII Division 1 - Appendix 2).These flanges are recognized by ASME Pipe Codes such as ASME B31.1 Power Piping,and ASME B31.3 Process Piping.FORM U-2 MANUFACTURERS PARTIAL DATA REPORTBody Flanges on Heads Location Flange Thk Min Hub Thk How Attached Num Size Bolting Material FORM U-2 MANUFACTURERS PARTIAL DATA REPORT A Part of a Pressure Vessel Fabricated by One Manufacturer for Another Manufacturer As Required by the Provisions of the ASME Boiler and Pressure Vessel Code Rules,Section VIII,Division 1 Page of

ASME Code,Section VIII,Div.1 Items 611 incl.to be completed for single wall vessels,jackets of jacketed vessels,shell of heat exchangers,or chamber of multichamber vessels.Items 12 and 13 to be completed for tube sections.Equipment Component and Complianceequations,multiplied by the stress intensification factors found in ASME Section VIII,Div.2,Table AD-560.7.The pressure stress calculation is not a part of the WRC 297 bulletin but is added here for your convenience.CAESAR II also uses,through Input ASME SEC VIII DIV 2 Nominal Thickness of Flangesgt; Piping,the nozzle flexibility calculations described inDesign of Obround Flange for Pressure VesselHence the method is formulated for manual design of obround flange which can use ASME BPVC section VIII div.-1.Guidelines of the ASME BPVC Section VIII div.-2 are to be used with the allowable stress limits of ASME BPVC section VIII div.-1 and Finite Element Analysis (FEA) is done to meet requirements of ASME BPVC Section VIII Div-2 as

May 21,2012 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;The allowable stress for 2.25Cr 1Mo 0.25V steel per ASME Section VIII Div.2 2007 edition (hereinafter called New Div2) becomes higher than that per old Div.2.Therefore the thickness of flange can be thinner than that per old Div.2.The internal fluid leakage is main concern as well as stress level especially for large size flanges per New Div.2.Calculation of blind flange thickness - CR4 Discussion ThreadFeb 16,2010 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;For nonstandard blind flanges (flat unstayed circular),thickness shall not less than the thickness of flange itself.The equation of calculating the thickness of blind flange as derived from ASME code,Section VIII,Div.1,is T = d [C P/S E + 1.9 W h G /S E d 3] 0.5,for nomenclature see UG-34(c)(2) and Fig.UG-34 Sketch (j).Bolted Flange Design according to ASME Section VIII Division 1According to ASME B16.5,for flange classes 150# and 300# its height should be 2 mm and for flange classes 600# and above,it should be 7 mm.Actualy,suppliers use 1,6 mm for 150# and 300# and 6,35 mm for 600# and above.

Apr 25,2018 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;How to verify the blind flange thickness as per ASME SEC VIII Div I.Refer below data for flange.Flange OD = 1100mm.Flange Thk.= 80mm.The blind flange has Dia.45mm 24 Nos.openings and 5Nos.Nozzles are mounting on it.Refer below sketch for your reference.Nozzle N1,N3,N2,N4 are 2NPS and Nozzle N11 is 3 NPS.Acceptance Criteria - ASME VIIIApr 17,2007 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;(1) The reduction in thickness shall not reduce the material of the adjoining surfaces below the minimum required thickness at any point.(2) The reduction in thickness shall not exceed 1/32 in.(1 mm) or 10% of the nominal thickness of the adjoining surface,whichever is less.8 8 It is not the intent of this paragraph to require measurement of reductions in thickness due to the welding process.ASME VIII calcs - Google SheetsShell,Nozzles ,ASME SECTION VIII Div.1 SHELL CALCULATIONS,NOZZLE CALCULATIONS CIRCUMFERENTIAL STRESSES,CIRCUMFERENTIAL STRESSES VALUES,VALUES Maximum Allowable Working Pressure (P):,300,Maximum Allowable Working Pressure (P):,300 Maximum Allowable Stress Value (S):,17500,Maximum Allowable Str

May 07,2020 ASME SEC VIII DIV 2 Nominal Thickness of Flanges#0183;ASME Code Section VIII Div 1 exemption rules for ASME Impact Test Requirements There are specific rules in the ASME Code for exemption from ASME Impact Test Requirement.This test is very expensive,so pressure vessel manufacturers are trying to be exempted from this costly test.You need to follow the following clauses to makeASME Section VIII Division 2 Example Problem ManualASME PTB-3-2013 ASME Section VIII Division 2 Example Problem ManualASME B31.3 Pressure Design of Blind FlangesMost blind flanges are in accordance with listed standards,such as ASME B16.5.When designing a blind flange,the rules of ASME BPVC Section VIII,Division 1,para.UG-34 apply.The procedure in ASME BPVC Section VIII includes consideration of the moment due to the flange bolts,so the required bolt load for boltup and operation must be determined per the flange design rules of Appendix 2 of

CAESAR II provides a tool which simplifies this analysis,a flange analysis module accessible from the WRC 297,SIFS,FLANGES submenu which allows the user to evaluate leakage of flanges under load a more realistic analysis process than performing an equivalent pressure analysis.The flange analysis module also automates the ASME BPVC Section VIII,Division I flange stress 12345NextGuidebook for the Design of ASME Section VIII Pressure VesselsSince the loadings and dimensions required for analysis of bolted,flat plates and flanges in both VIII-1 and VIII-2 are very similar,if not the same,they will be treated together.Spherically-dished covers are considered in section 4.7 and in Appendix 16 of VIII-1 and in Article 4.7 of VIII-2.(PDF) ASME SECCION VIII DIV.1 ED 2015 CALCULOSASME SECCION VIII DIV.1 ED 2015 CALCULOS MECANICO Cylinders/Covers Component Shell Cylinder ASME Section VIII-1 2015 UG-27 Thickness of Shells under Int.Pressure --- Calculations --- Cylinder Internal Pressure Material SA-516 K02700 Grd 70 Plate Design pressure P = 220 psi Design temperature T = 720 F Radiography = Spot Joint eff.circ str.E = 0.85 Design stress S = 16780 psi

BPVC-VIII-1 -- Section VIII,Rules for Construction of Pressure Vessels,Division 1 BPVC-IX -- Section IX,Welding and Brazing Qualifications Referenced ASME Standards B1.20.1 --Pipe Threads,General Purpose,Inch Twelve Standards from the B16 Series on pipe flanges and fittings B31.1 -- Power Piping B36.10M -- Welded and Seamless Wrought Steel

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