Name Plate Stamping & Design Conditions
Name Plate Stamping & Design Conditions
(OP)
Hello All. I am designing a small tank to be used as a test vessel for a heat exchanger bundle. The bundle external design pressure is 500 PSI, hydro at 750. The company will retain this vessel and it could be used on any future orders for this product.
I feel fairly well justified in using 500 psi as the vessel design pressure, however I want to apply a name plate and stamp it with design data for future use and tracibility. I do not plan to Code stamp at this time.
I do recognize that at 750, stresses will be above Code allowables, as in most any vessel at hydro, and as such 750 would not usually be considered as the "MAWP".
Question is: Should MAWP be stamped 750 even though design is 500? I feel that having 750 stamped on the name plate is better than stamping 500 and depending on "the future" to recognize that the vessel can be used for a 750 hydro.
Any other thoughts or advice?
Regards,
Mike
I feel fairly well justified in using 500 psi as the vessel design pressure, however I want to apply a name plate and stamp it with design data for future use and tracibility. I do not plan to Code stamp at this time.
I do recognize that at 750, stresses will be above Code allowables, as in most any vessel at hydro, and as such 750 would not usually be considered as the "MAWP".
Question is: Should MAWP be stamped 750 even though design is 500? I feel that having 750 stamped on the name plate is better than stamping 500 and depending on "the future" to recognize that the vessel can be used for a 750 hydro.
Any other thoughts or advice?
Regards,
Mike





RE: Name Plate Stamping & Design Conditions
RE: Name Plate Stamping & Design Conditions
Joe Tank
RE: Name Plate Stamping & Design Conditions
RE: Name Plate Stamping & Design Conditions
Thanks, all.
Mike
RE: Name Plate Stamping & Design Conditions
Joe Tank
RE: Name Plate Stamping & Design Conditions
Where will this tank be installed ? What is the volume
I do not believe that it is up to the owner or designer to determine if a pressure vessel installed in the USA needs be an ASME Code stamped pressure vessel......
It is a matter of state law.
If the vessel is very small it may be exempt from ASME code requirements
-MJC
RE: Name Plate Stamping & Design Conditions
JoeTank, stresses at hydro are moderately above Code allowables, but nowhere near 90% yield. It will not be used frequently.
I ended up just stamping information on a blank plate, including "Do Not Exceed 750 psi"
Thanks again for the input.
Mike
RE: Name Plate Stamping & Design Conditions
What does "Do not exceed 750 psi" means? - Operating / Hydro?
In future, one can even operate the tank at 750 psi which is a Hydro Press and is not supposed to.
you should have mentioned clearly "DO NOT EXCEED HYDRO PRESS OF 750 PSI"
Thanks,
Aravind Sujay
RE: Name Plate Stamping & Design Conditions
Regards,
Mike