Kindly go through the below link in which HSB interpretation regarding opening on blind flange is available..
I hope this will help you...
http://www.hsbglobalstandards.com/uploadedFiles/CTWeb/AllImages/PP-1999-06.pdf
Bmechz
Dear Jman69,
You run a PQR with 2 cycle PWHT and prove that the mechanical properties are within the range..
Above mentioned clause UCS 68 is for exemption of impact testing, not related to the mechanical properties of materials after PWHT..
Bmechz
Satheesh,
In PV elite you may have consider o% seismic load for hydrotest condition..
In summary i think PV elite shows the seismic / wind load,whichever is more...
Bmechz
Hi all,
Did any one have the below mentioned hand book, if so please send me the link..
Worldwide guide to equivalent irons and steels..
Thanks and regards
Bmechz
Dear MikeG7,
Please refer UHX-4 - Note of ASME Sec VIII Div -1, there code says that if tubesheet thickness is less than the OD of tubes then designer has to consider the deflection..
Bmechz
Dear All,
Now we are designing a vessel with shell as 12" XS pipe and Alloy 625 weld overlay inside and vessel ID after weld overlay is 284mm..
In the above vessel weld consumables to be used for shell to shell joint(category B)is alloy 625 but the vessel shell is designed for Carbon steel SA...
Dear TGS4
Thanks for your feedback..
In some cases we can found that the bottom head or shell are overstressed due to hydrotest pressure, that is because of the high hydrotest pressure as per client specification(MAP in lieu of MAWP) in div-1.
In general, induced stress during hydro shall...
Dear all,
Do we have to check the non std. flange in hydrotest condition as per appendix -2 of ASME Sec VIII Div -1? If so PV elite software is taking care of it or not ?
As per my understanding PV elite is taking care of the Shell and Head part during hydrotest. If we model a body flange in...
Dear Chandanraj123,
First of all let me know which weld size you want to determine, whether it the weld size between rib to base plate or base plate to deck (without anchor bolt)
Bmechz
Dear MDARC,
Please note that MAWP of the vessel shall not be less than Design pressure,you can consider MAWP same as design pressure code allows it.
Regarding pressure relief valve , i think you can set a pressure Of relief valve between MAWP of vessel and Operating pressure. In no case set...
Dear All,
I have a column(U2 stamp) design with a heat exchanger attached to it with help of saddle, Client have provided us the Fx,Fy,Fz loads for both fixed and sliding saddle.
Note that the vertical axis of column and heat exchanger is parallel to each other but the heat exchanger is...
Since the tubes side pressure is very less and customer doesnt want the hydrotest on the tube side, you perform hydrotest on the shell side and provide client PDR instead of MDR.. That means only a part of the heat exchanger is code stamped..
I think the NB reply is also trying to say the...
Hi Metengr,
Thanks for your reply, but i have a doubt regarding the material..
As per UCL 34(b), they talks about the chromium stainless steel and they haven't used a word of martensitic stainless steel and as per my understanding Type 410 comes under martensitic stainless steel which is not...
Dear All,
Kindly go through the below query and let me know your valuable feedback...
Recently we have a vessel with SA 516 Gr. 70 base material and SS 316L internal cladding for corrosion resistant.. The max thickness of shell and dished end is 10 mm only. Design code is ASME Sec VIII Div 1...
Hi Everyone,
I have query regarding inspection opening requirement for U-tube heat exchanger with respect to ASME.
In the MDR we have to mention the inspection opening details provided for each vessel constructed under ASME, so in case of Heat exchanger can we mention channel and shell flange...
