API 650 Section I.7.1

[JSPCGY]

Dear Experts
What is your interpretation of this paragrpah?

Assuming that all other requirements of this para are met,

Can a API 650 tank with a design temperature of 100C be supported on grillage ?

Thanks for your reply in advance.

 

[JStephen]

Answer appears to be "no".

If you refer to Appendix M, tanks are adequate for up 200F/93C without any special provision for thermal design. I think the intent of this section is to say that Appendix M isn't applicable to grillage-supported tanks. Not that it couldn't be built, or wouldn't work, but rather the App. M thermal analysis makes different assumptions.