Manway flange flatness tolerance

[geesamand]

For flat face manways (20-36", per API 650) is there a tolerance limit for flatness?

I'm concerned more about used tanks than new but a tolerance for either would be helpful.

Thanks,

David

 

[IFRs]

There will be soon - the API has a working item 650-1017 for this.

 

[geesamand]

Thanks. I will keep an eye out for that.