Hello Experts,
I need to design a vessel at atmospheric pressure as same shape as we design pressure vessel, which code to be followed?
I went through API 650 but its for flat bottom.
I need it in shape you can see in image
Thanks in advance
Is there an owner specification?
If there are no requirements, then only a detailed drawing (without calculations), zero NDE.
Just a dimensional check and then 100% water fill to check for leaks (before painting).
There are no end of containers that don't fit under regular codes. It can be built as a non-code tank.
API-620 can be applied to it, but doesn't offer any design guidance, either, so not a lot of point in doing that.
UL 142 or ASME could be used, but either involves more paperwork and money to fully comply with the requirements.
In case a pump suction is connected to the vessel and there is not sufficient opening to eliminate the suction you may have partial or full vacuum in the vessel. Have you looked at it this way? In case there is vacuum you may need to use ASME VIII Section 1 or similar codes.
Other than above, you may design your vessel without code compliance and manufacture in accordance with code rules.
Given that this has no pressure in it, I would just design it as a bit of pipe to B 31.3 using standard components like end caps, tees and weldolets and make it from Std wall thickness pipe.
Then analyse it for the support loads when full of your liquid.
Give it a design pressure just to make the numbers make some sense (14.5 psi).
This is a 24" pipe 1.8m long. Don't overcomplicate this.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
There are many storage tanks in the world made without any code, for different products.
A pressure vessel manufacturer cannot be competitive in this context.
No code is: NO WPS, NO material identification, NO calculations, ........NO....... and NO....
For this example I suggest: 3mm shell plate, 3mm flat heads, ......etc.