I have to add fire protection system to a Butane pressurized Sphere. To completed this we have to add some metallic supports for fire water piping in all surface of the sphere (supports will be welding on plate clips new).
My question is: We have to testing (pressure test) again the butane...
Yes Duwe6, You're right. I agree with you.
I asked for last inspection report but They answered me: "We don't have it".
Now, my question is about the meaning of: RTbc and RTip.
I found la description about RTbc and RTip in API 653 4.4.7.4.
API 653 4.4.7.4. tells:
RTbc = minimum remaining...
I want calculate bottom's thickness of tanks using API 653, but I have some questions about it.
I have a tank. It's over 20 years. I dont have inspection reports about pitting and bottom's thickness. Just I have design planes of the tank. In these planes thickness of the bottom = 6mm (0.2362in)...
