Dear Members,
I would like to know which paragraph in WRC-107/297 says/allows the use of reinforcing pad thickness while calculating the local stresses in a nozzle to shell junction in cylindrical shells or spherical dishes. The WRC code refers the "T" as wall thickness of cylindrical shells...
Dear Members,
I would like to know if I can use fitting material of SA-815 WPS UNS 37250 for an ASME Sec.VIII Div.1 vessel. The complete vessel is of UNS 32750 with different ASME specifications. Is it true that I cannot use this material if this is not listed in the UHA-23 table of ASME...
Dear Eng. Members,
My query is "what seismic importance factor shall be used while designing a lethal vessel(column)ground supported. If client specification says that the occupancy category is III then as per ASCE- Table 11-5-1 importance factor is 1.25. Does OC III includes hazardous...
Dear Members,
we want to use S275JR in replacement of SA-283 C for structural parts of pressure vessel like skirt, base plate etc. But since this material is not listed in ASME SEC II PART-D, we are unable to use this material.
I would like to know if S275JR material listed in ASME code or does...
Dear Eng. Members,
My query is "what seismic importance factor shall be used while designing a lethal vessel(column)ground supported. If client specification says that the occupancy category is III then as per ASCE- Table 11-5-1 importance factor is 1.25. Does OC III includes hazardous...
Dear Eng. Members,
My query is "what seismic importance factor shall be used while designing a lethal vessel(column)ground supported. If client specification says that the occupancy category is III then as per ASCE- Table 11-5-1 importance factor is 1.25. Does OC III includes hazardous...
Dear's,
The trunnion sketch as shown in the trunnion calculation page depicts the tunnion pipe is directly connected to the shell and in the WRC calculation the local thickness at the pipe OD (RM/t)is considered as repad+shell thickness.
My query is shall the trunnion pipe be directly welded...
Dear's,
I am looking for a movable shield that I can use for radiography of pressure vessels using gamma rays. After making a search I was able to get few information. The material that I can use are concrete blocks, steel plates and steel plates lined with lead.
My query is what is the best...
Dear's,
I would like to know if it is possible to mark 2 MAWP @ 2 Temp on a same ASME Nameplate. The Vessel is single chamber and not multi chamber. I want to certify the vessel as per 2013 Div-1. I am aware that a range of MAWP is not acceptable as per Interpretation.
Need your support...
Case :- Multi-chamber Column, two chambers are manufactured and PWHT done separately due to constraint of accommodating this 69 mts long column in the furnace. Now Localized PWHT is being performed on the Joint connecting these two chambers. There is a internal dish head at this junction. As per...
Dear Members,
Can somebody help me to know what is the ASME specification for UNS 32750 bolts. I am designing a column of solid UNS 32750 material (no cladding) and there are body flanges in this column which are designed as per Appendix-2 and I need to select bolting for these flanges...
Dear Colleagues,
I am designing a Horizontal pressure vessel and I have a 4"nozzle on the top of the blind of another 6"nozzle. The 6" nozzle is on shell. This leads to the a large opening in the 6" blind flange and as per UG-39(b)(1) this is to be designed as per Appendix-14 and Appendix-2...
Dear All,
I was trying to perform the saddle design for a huge vertical column which is 8 meters in diameter. These saddles are intended to be used during Hydrotest and Transportation. I tried the Saddle design using both pvelite and Compress but in both cased the analysis fail. The reason for...
We are going for a new Div-2 certification for our new fabrication facility.One of the paragraph from the "Guide for ASME Review Teams" States that "Certification of the design documents by an engineer meeting the criteria as defined in section VIII div-2 would also need to be demonstrated"...
WE have a project from Aramco where the vessel is hanged from the floor.Attached is the data sheet for the same. My query how can we perform the saddle analysis for this vessel. (WIND, Seismic, ZICK)
I was trying to make a self-reinforced nozzle with LIP for a thick wall vessel(thickness above 50mm)and i had a lot of issues making the same.Attached is the sketch and the model that i made. The model is not as i want. To explain in brief this particular part sits on a shell(cylinder) and the...
I recently encountered a problem in compress where a nozzle with "WNRF flange and pipe" on hemispherical head failed because of deficiency error of shallow shell theory.
I would like to know what is the shallow shell theory and what parameters compress uses to calculate the nozzle openings...
