casted pressure vessel bottom

Martin5 · **Joined:** Mon Sep 15, 2008 1:06 pm **Posts:** 4

I plan to construct a pressure vessel consisting of of three parts.
- a welded head
- a welded pressure vessel jacket
- a casted pressure (ductile iron; SA - 395 ) vessel bottom.

The pressure vessel will be manufactured in a series of about 100 per year. The complete pressure vessel will be bolted together at the manufacturer of the welded head and jacket. This manufacturer is a holder of the ASME Certificate - U.

What are the requirements the foundry of the casted pressure vessel bottom has to fullfill, so that the manufacturer of the complete vessel can easily integrate the bottom?
- the ASME Certificate - U ?
- provide Form U-2 or U - 2A

akonrad · **Posted:** Tue Sep 16, 2008 9:35 am

All there is to be done by the foundry is to issue a certificate of compliance with the specification (showing/stating that applicable requrements are met) and marking the castings appropriately. No certificate is needed. The responsibility is on the vessel manufacturer, anyway.

Martin5 · **Joined:** Mon Sep 15, 2008 1:06 pm **Posts:** 4

Thank you for the information!

Dr. Koelbl · **Posted:** Thu Sep 18, 2008 10:05 pm

Martin5,

Castings are considered just material. The use of Data Reports is not required, Material Test Reports only upon specification from the vessel Manufacturer.

I strongly advise to consider the Material paragraphs in UG-4, UG-7, UG-24 and Part UCD!

Hope this helps
DK

casted pressure vessel bottom

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