Hello, I am a working on a project to add a 4” 300# nozzle to the fixed roof of a small (Diameter: 7’-3” Height: 12’)API 650 tank Annex J. This tank is already in service and is being pulled out to have its API 653 inspection. The nozzle will be installed during its outage. I have been reading through API 653/650 but I am having trouble determining what design calculations are needed to ensure that installing the nozzle acceptable. From what I have seen in the flanged roof tank sections, it seems the nozzle pipe thickness and dimensions are given. Dimensions are given for the welds, which show the combined thickness of the repad and roof should be a minimum of 1/2” thick. If this tanks’a roof is 1/2” is this all that must be checked for the nozzle to be installed as long as the nozzle schedule is standard size?Repads are not required but I am planning on having the thickness of the roof checked.I have attached a drawing of the tank and sections of API 650. Thank you in advance for your help.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Functional prototypes are a key step in product development â€“ they give engineers a chance to test new ideas and designs while also revealing how the product will stand up to real-world use. And when it comes to functional prototypes, 3D printing is rewriting the rules of whatâ€™s possible. Download Now
The company turned to the Studio System to allow for faster retooling on manufacturing lines, speed the development and prototyping of custom parts and to quickly and inexpensively produce maintenance, repair and operations (MRO) parts to keep manufacturing lines up and running. Download Now
The Desktop Metal Studio System allows John Zink Hamworthy Combustion engineers to rapidly create prototypes, design and test innovative new part designs, and streamline their workflows. Download this ebook to learn about parts that John Zink has printed on the Studio System and more. Download Now
In this white paper, learn the step-by-step method for forming sheet metal parts with 3D printed plastic dies to reduce costs and lead time. Sheet metal forming is the most cost-effective forming procedure today for manufacturing parts at large quantities. Download Now