Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Floating Roof Venting

Status
Not open for further replies.

Civilpetro

Petroleum
Joined
Aug 6, 2009
Messages
9
Location
US
The foreword in API 2000 says that "This standard does not apply to external floating roof tanks or free vented internal floating roof tanks"

If I have an external floating roof, how do I size the P/V valve and what parameters do I need use If I can't apply API2000? Thanks.
 
What exactly is your definition of an external floater?

rmw
 
Im sorry, I meant Internal Floating Roof. A tank with a fixed roof and a floater inside.
 
If this is an API 650 tank, venting for internal floating roofs needs to comply with API 650 Appendix H. Appendix H gives you two choices: (1) add circulation vents in which case API 2000 does not apply or (2) inert the vapor space in which case API 2000 does need to be checked.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top