Does someone know the criteria to "group" the ASME Materials inside one of the family stated inside the ASME Section II Part D?
Example of AMSE II-D Groups for the Nominal Compoitions:
1 Cr - 1/2 Mo
1 1/4 Cr - 1/2 Mo - Si
2 1/4 Cr - 1Mo
2 1/4 Cr - 1Mo - V
Mn - 1/2 Mo
Mn - 1/2 Mo - 3/4 Ni...
Dear all,
I remember that in ASME (VIII-1 or VIII-2) exist a limit on the ratio between the SMYS (Specified Minimum Yield Stress) of the Nozzle Materia rispect to the SMYS of the Shell/Head Material (not less than 0.8 or 0.7), but I'm not more able to retireve the paragraph of ASME where it is...
Dear all,
in case of Nozzle-To-Shell attachment in a configuration like that stated in Fig. UG-40(b-1) of ASME VIII-1 (Ed. 2007 an successive), whick is the definition of the "thickness" (t.PWHT) to be considered in PWHT CODE ASSESMENT (by CODE)?
Some Client/ASME Inspectors assume a "more...
Dear all,
I need to clarify the following issue: if a "discontinuity" (like a saddle, a "small" opening to drain/vent the shell/channel chamber, a "large" opening for the INLET/OUTLET of the Process Fluid, ...) may be "close" to an INTEGRAL tubesheet ["close" mean distance less than: 1.8 x RADQ...
Does someone have some news if a WCSRF is applicable to design a component of a pressure vessel in creep range temperature with ASME Sect. VIII Div. 1 or Div. 2?
OR
If a value of WCSRF has been already "implemented" in the definition of the ALLOWABLE STRESS (creep range) of ASME Sect. II Part...
Does anyone can give me the Titles of Technial Papers where it is explained in detail how to design this kind of gasket?
Interne WWW Address are more better (I suppose that only very old pubblications adress this kind of design andthis lead to difficulties to get such books/brochures).
I know...
Do someone can show me a good internet site where it is possibe to get a detailed and comprehensive CHECK LIST to be follwed during the DESIGN & CONSTRUCTION of a Pressure Vessel?
We get an order for a Pressure VEssel for China Market, but we do not know the GB-150 and we do not know if the...
Dear all,
in a girth flange bolted connection, to full fill the PED requirements, is it necessary to purchase bolts and nuts with the impact test included in the Material Certification.
Question: which value of minimum Impact Energy (Cv) it is correct to specify? Which is the Transition...
I to every one.
I'm looking for Books, Examples, On-Line Documentation regarding Java Scripting.
What stored inside the Official Manuals purchased with the Program are insufficient for my Works (I have to create Complex Macro in wich the Model that i have to create changes in function of the...
Dear all,
in our factory we have a huge equipment designed for Internal (very Low) Design Pressure and for a Full Vacuum Condition, both at a Design Temperature by which creep phenomea occours (T Des > 580°C).
Nominal Thickness of the VEssel's Components are suitable for the Vaccum Condition...
Differential design of tubesheets (P.Shell - P.Channel) allow the reduce in thk of tubesheets.
With a TEMA HIGH PRESSURE Exchanger with a Shell Side flanged and the Channel Side Integral with the Channel Barrels (Welded Joint) as stated in Fig. UHX-12.1(e), the differential design may lead to a...
I have tried to understand which is the safety criteria behind this roule, but there is something that do not work fine (I'm in the classical situation in which a flat surface pass or not pass in function of the value of the factor C. Staybolts: Tubes of OD=120 mm x WT=8mm; Flat Circular Plate...
Dear alls,
with the present to ask you some clarification on the interpretations in the design of large opening in heads (consider only 1 single opening, centered respect to the head).
FOREWARD: UG-36(b)(2) states: "Properly reinforced openings in formed heads and spherical shells are not...
