Recent content by Civilpetro

At first I used no RT. Then I used Full UW-11a Type 1 for the circumferencial and longitudinal seams. I came up with 3" for both of them. I think that's the thinnest I can make it. Thanks for the input.

Design of Boilers and Heaters-ASME Sec.I ASME B 31 http://www.engineeringtoolbox.com/asme-b31pressure-piping-d_39.html hope this helps

Do you need the OSHA ladder details? I do have some ladder details per OSHA requirements and made some dynamic blocks. But you can easily google OSHA Ladder Details in dwg.

OD = 78" Int P = 900 psi Mat'l = SA240 347 T = 970 F

Vesselfab, I tried using F&D head at first then ellipsoidal. Both of them came out to about 6" thick. A tapered head will possibly be the ending to this vessel. CivilPetro

TSG4, I can't change my material. It is specified by the customer. Thanks for the input.

I have a pressure vessel that has an internal pressure of 900psi and temp of 970F. I run the calcs and compress gave me a thickness of 4" for the vessel and 6" for the heads. I just want to make sure that I can not reduce the thickness anymore. I know for full vacuum chambers I can reduce the...

Im sorry, I meant Internal Floating Roof. A tank with a fixed roof and a floater inside.

The foreword in API 2000 says that "This standard does not apply to external floating roof tanks or free vented internal floating roof tanks" If I have an external floating roof, how do I size the P/V valve and what parameters do I need use If I can't apply API2000? Thanks.