Hi,
Is supplementary requirement S12 of SA-788 applicable to hubbed tubesheet in SA-182 F316?
This is applicable for example to SA-765 forgings (explicitly recalled in SA-788), but I would like to understand if this is technically needed also for SA-182 F316 forging.
Thanks in advance
I reconnect to this thread.
Is it correct to order a tubesheet or a girth flange for a heat exchanger in accordance with SA-182 instead of SA-965 for SS316?
Reading the specifications, it seems that both are applicable, with the difference that SA-182 is limited to products weighing less than...
Hi,
I have a question about the calculation in accordance with ASME VIII-1 for the configuration shown below:
what are the reference paragraphs for the calculation of the standard blind flange with a 4" nozzle inserted as shown in the detail? Being a standard component but modified due to...
Hi everyone,
Could you recommend a machine for performing internal weld overlay on nozzles with a diameter of 3 inches and below (e.g., a 2" LWN #300, which has an internal diameter of about 50 mm)?
We routinely perform weld overlay on heat exchangers, vessels, etc., but we do not have the...
Hello,
I would like to understand how can be inputed the following load cases in PV Elite for a fixed tubesheet:
PV Elite has two main windows for these data:
(1) General windows "Load Cases":
(2) Minimum Pressures & Report Options for this Load Case:
I assumed that, according to the...
Dear all,
I'm new to PV Elite and I'm wondering why the software doesn't print the tubes of the bundle calculation in the report.
This seems quite strange to me. Tubes informations are shown only in tubesheet calculation report.
Thanks in advance
Hi,
I'm designing a BEM heat exchanger with concentric cone and I have a doubt on evaluation of API 660 loads.
Design code is ASME VIII-1 2023 and equipment shall be marked with U designator.
Design conditions tube side: 1.77 MPa + FV @ 100 °C
Tube side MOC: SS316
Please consider the following...
Hi,
We have to build a column in SA-516-70 internally cladded in SA-240-316L (3 mm) for colamination.
In the circumferential joints we would have to remove about 3 mm in the carbon steel base material because we will have to perform the weld overlay so that we have 3 mm undiluted, getting to...
Hi,
We have to design and manufacture the following pipeline in accordance to ASME B31.3:
Is it possible to obtain a 1/2" 90° elbow (even long or short radius) from a bended tube SCH. 80 in ASME SB-165 N04400 (Monel 400)?
Thanks in advance
Hello,
We are designing an Air-Cooled in inconel 625 and I would like to ask you if you think that gaskets in inconel 625 are needed for plugs in plugsheet or if we can use another material.
And if so, which would be the requested torque for the plugs.
Design temperature: 427 °C
Design...
Hi,
I would like to understand if it is possibile to obtain the MAWP and the MAP for a flanged cover type air-cooled API 661, with ASME VIII-1 as design code.
Generally, when air-ccoled has the flanged cover instead of plugsheet, we perform the finite element analysis in accordance to ASME...
Hi,
Is it possible to use (for a EN 13445 project) an integral tubesheet with hub from plate (es. EN 10028-3 P355 NH) without no test on hub?
For example ASME requires the tension test specimens on hub region.
Thank you
Hi,
I have read all the posts on the forum regarding the ratio to be considered in the calculation for tubes expansion depth, but it is not clear what is the % limit that for good practice can be considered.
ASME VIII-2 gives no details on this, while API 660 (referring to a carbon steel tubes)...
Hi,
I would like to better understand how is pressure thrust incorporated in PV elite calculation, when the following option is activated:
"Select to include the pressure thrust force (P*A) in the nozzle radial load. Pressure thrust is added to Internal Pressure and Occasional Pressure (Pvar)...
Hello,
We are manufacturing a columnn with height 50 meters under EN 13445 and PED law.
Equipment will be installed in an italian refinery.
Our scope of supply includes also platforms and ladders, which shall be also manufactured by us.
Do we need to certify these constructions in accordance...
Hello,
We are designing an air-cooled with splitted header boxes and we need to provide sliding plate between splitted boxes.
Due to elevate design temperature (427 °C) and that we have to weld the plates to boxes (which are in Inconel 625, ASME SB-443 Gr. 1 N06625), we cannot provide sliding...
Hello,
Our customer asked us to include pressure thrust in external loads on nozzles calculation in accordance to WRC 297 for inlet and outlet nozzles of a AES Heat exchanger.
We have never include it on calculations and our software has no option to automatically include it.
Could you please...
Hi,
For PED law, is H2 a stable or an unstable gas?
We have a piping with design pressure of 56 barg and ND 50, which falls in II category if H2 is considered as stable, or in III cat. if H2 is considered as an unstable gas.
Thank you in advance
