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Hello, we have an API-620 tank 18ft diameter, 25ft shell height, conical roof, conical bottom and skirt support. What is the best way to weld the bottom and shell to the skirt? Thanks

Hello, I'm designing a cylindrical tank using API 620, 96ft diameter, conical roof, 15 psig. The required thickness of the roof based on internal pressure (15 psig) is unreasonable ~ 7in. How can I design internal structure (rafter, girders, columns ..) to reduce the thickness of the plates...

Hi, Can I use API 620 in SI units just by converting units? will the equations still valid? Thanks

Hello, I'm working on a API 620 tank, API 620 standard does not have a detailed description on how to design a flat bottom (5.11.2). 1. Can anybody explain to me briefly with references how to design a flat bottom per API 620 standard. 2. Can I use API 650 flat bottom design? 3. Does anybody...

Hello, I'm designing a roof compression ring based on API 620, the standard provides the equation for the required moment of inertia (5.12.5.8) when bracing is required. What is the required moment of inertia if bracing is not required?

Hello, I'm trying to design a tank roof per API 620 Std. I'm trying to calculate the thickness based on external pressure. When I compute T1 and T2 at the roof shell juncture, both forces are negative (compressive), I need to compute the thickness based on section 5.10.3.5, in equation 18 and...