I made two typos earlier. The roof is 1/4” thick. The requirement from API 650 that I am curious about is an arrow pointing to what looks like the combined thickness for the repad plate and the roofs thickness and has a specified thickness of 1/4”.
Since this is an annex J tank, repads for the...
Hello, I am a working on a project to add a 4” 300# nozzle to the fixed roof of a small (Diameter: 7’-3” Height: 12’)API 650 tank Annex J. This tank is already in service and is being pulled out to have its API 653 inspection. The nozzle will be installed during its outage. I have been reading...
