Breather valve replacing Frangible Joint

[zacharialamsyah]

Dear All

I having some problem in facility about storage tank

Can Breather valve per API-2000 (Venting Atmospheric and Low-pressure Storage Tanks) replace the requirement of Frangible roof to shell Joint. If the construction of Frangible Joint cannot applicable per API-650 .

Thank you for your responses and answers

Regards
Zachari Alamsyah

 

[fegenbush]

A suitably sized pressure (or pressure/vacuum) relief vent per the requirements of API 2000 for emergency venting can replace a frangible roof joint. Be sure to advise your client of all pertinent information related to the vent. Reference 5.8.5.3 of API 650.

 

[Duwe6]

'Breather Valve' will have to be quite large. Look at an 'Emergency Vent' installed in the roof manway. Easy way to achieve the required diameter.