Greeting to everyone
I have one flange where gasket is placed near flange id=1000mm with gasket width 13mm. Internal design pressure is 100 kg/cm2 & 150 deg c design temperature.
Flange pcd is 1283 mm
Later after procurement I come to know that gasket shall be placed always near to pcd for...
thread794-439534
Greetings to everyone
I have come across in very strange situation
I have reverse flange which was designed for grooved metal gasket having m & y value
Now I am looking to qualify this flange for diaphragm gasket which is having m=0 & y =0
I was thinking that my flange...
Hello everyone
i have some doubts related to hydro test pressure
my first doubt is, does selection of ug99b or ug99c depends upon shop or field hydro test.
i have understanding that selection does not depend upon whether we r performing shop or field hydro test. we can considered anyone in...
Hello everyone.
I have cone with flat head closure. I need to place ring stiffener on flat head & axial stiffeners on cone section for external pressure. I am attaching figures for better understanding.
I am not getting any clause for such stiffeners in ASME section viii div 1. please suggest...
Hello everyone.
when we have different D/2h in ellipsoidal heads we have different crown radius by using table UG-37, sec viii div 1.
So does we have different knuckle radius for different D/2h in ellipsoidal heads by using table 1-4.4 or table 1-4.4 is only applicable with appendix 1-4f(2)...
Hello everyone,
I have following doubts in understanding UG39 & UG36 ASME section VIII div 1.
1. UG36 is applicable to flat heads or not. I have this doubt because it seems that UG36 is all about formed heads not about flat head.
2. UG39(a)stated that:"The rules in this paragraph apply to...
Hello all,
I have below one question that may be very silly but i am stuck to find the answer.
"UW-16(f)(2) stated that:"(2) Fittings not exceeding NPS 3 (DN 80) shown on Figure UW-16.1, sketches (x), (y), (z), (aa), and (bb) may be attached by welds that are exempt from size requirements...
Hi friends,
I need a help. I have to design a storage tank to store 40% caustic soda solution. My roof to shell joint is coming non frangible. So i think for emergency vents. But i understand that my stored product is non flammable so emergency vents are not required.
There is also heating...
Dear all,
i have observation that API 650 has considered very high shell manhole neck thickness as per table 5.4a. I understand that manhole neck shall be designed only for hoop stress caused by liquid head pressure. since manhole diameter is always very very less compare to tank diameter...
Dear all,
I have one issue in my api 650 storage tank. Due to oversight i have not considered note b in table 5.4a for shell manhole thickness.
I have chosen less thickness than the minimum requirement & mistake come to know when hydro test has been done.
Please give me suggestions for...
