Hi All,
Appreciate to have expert opinion from welding and material perspective.
Case details: Heat exchanger tube to tubesheet weld Joint
Tube sheet base material is SA-266 Gr. 2/4N
Which have explosion bonded Cladded face (10mm) with - CrNi 90/10.
Tube material = SB-111, UNS (C70600) (CuNi...
Hi Folks!
I'm performing a nozzle calc which is "Set in" , NPS-2" with below details and I am unable to understand that from where PV Elite is considering "Ar Lost" value and subtracting from the A41 and A42.
This nozzle is located on vessel dish with below details:
Outer weld size (neck to...
Gents,
I'm little confused about the how compress is giving exemption of impact test at -55 deg. F by simply refereeing the clause UCS-(b)(1)(b).
My governing thickness is = 3.810"
Nozzle type = Heavy barrel
Nozzle material = SA-105N
Nozzle size = NPS-24"
Shell thickness = 4.250"
Required...
Hi Folks!
Good day!
I have a one body flange (WNRF)and blind flange (NPS-72") in accordance with ASME Sec VIII Div. 1, Appendix-II. The material of flanges are SA-105N (Curve-B)
I'm pretty confident that blind flange of below sketch (150mm) thickness with SA-105N material (Curve-B) shall be...
Hi Folk! Good Day!
This is regarding the 2:1 Ellipsoidal dish EFE & end heat treatment, dish end nominal thickness is 20mm and material is SA-516 Gr. 70 N.
As per the code clause UCS-79 (d) is applicable, which states “if dish end formed with cold forming and determined the extreme fiber...
Good day Folks!
Hope you doing all well.
I've been faced one case, where my vessel is having NPS-10" nozzle and coupled with pump assembly with blind flange.
Issue is that pump have the submersible assy, which outside dimension is 245mm.
We procured the pipe NPS-10" SCH-80, which ID is...
Hi Folks!
This has been an quite significant misconception in regard of ASME Sec VIII Div. 1 UCS-56 PWHT criteria.
Please any body correct me that PWHT is always being assessed based on the maximum weld thickness or it can also be done based on vessel metal thickness.
I'm designing a vessel...
Hi Folks!
Good day! I am designing a vessel in accordance with ASME Sec VIII Div. 1 and shell DEP 31.22.00.31 specification,
Vessel materials are following as below stated:
Shell / Head = SB-424 (Alloy 825) UNS N08825
Forging / Flanges = SB-564 (Alloy 825) UNS N08825
The maximum governing...
Hi Folks!
I'm calculating the UG-44(b) flange external load calculation manually. So pls refer to attached link and red color mark.
I just need to know that how "Me" resolve moment value is PV elite calculating. Since the Nozzle load for the available nozzle sizes are below:
2"
Fx = 1 KN
Fy...
Hi Folks!
I need quick clarification regarding the vessel external pressure value which shall be mentioned on vessel ASME name plate in compliance of ASME VIII Div. 1 UG-119
I have two cases:
1. one vessel which external pressure is based on (bouncy forces + FV) value i.e. 0.1294 Mpa
2...
Hi Folks,
I'm designing an vessel (by manual calculation) which is limited by the standard flange. i'll draw an picture of case below with the major and minor component calculated MAWP values. As everybody knows the MAWP shall be always considered the lowest values among all the major and minor...
Hi Folk!
Lets kill some confusion about the RT requirement in accordance with ASME SEC VIII Div. 1.
Vessel Dia OD = 610 mm
Vessel thickness = 12 mm
Design Pressure = 0.35 Mpa
Design Temperature = 148 C
Shell Length = 2500 mm
Top cover = 24" Standard WNRF flange
bottom head = 2:1...
Hi Folk,
Good morning!
I want to know that how static head adjustment can be performed in calculation while we are performing the hydro test in vertical position and vessel to be erect in vertical position.
i'm designing a vessel which is being verified on UG-99(b) & UG-99(C) for both shop...
Hi All,
This became an big misconception while we are dealing with pressure vessel in daily routine.
Can anybody differential in between Post weld heat treatment / Normalizing / Stress relieving.
It will be more better that if its application can also be depicted, when , what, how and why...
Hi Folks!
Need expert opinion from all the specific static equipment design engineers discipline peoples.
My Question is regarding to obtain the TOP BODY FLANGE dimension of 1800 mm Inisde diameter.
i'm going to design a vertical vessel, which is 1800mm I.D and 16mm thickness of the shell.
I...
Hi,
Good day to all valued community members.
My question is that we have designed a vessel in July 2019 and fabricated in December 2019, and hydro test performed in January 2020.
In between fabrication and hydro test our ASME "U" stamp was re-newed with ASME audit and code design was update...
