Sizing Of Vacuum Valve On Storage Tank

[Dan57]

Does anyone know how to size a Vacuum/Relief valve on a storage tank?. API RP 520/521 only deal about Pressure Relief Valves.

I know the spreadsheet of Art Montemayor "Tank Pressure and Vacuum protection"

[link Point to another website Only the registered members can access]

[mobek]

It's based on API std 2000 which is accepted by all industries. You can develop your own spreadsheet if you follow API std 2000, it's very easy/straightforward calcs.

[Dan57]

Thank you