Roof seal for Floating Roof Storage Tanks
Roof seal for Floating Roof Storage Tanks
(OP)
What are the pros and cons of using "Tube seal" vs. "Mechanical seal" or vice versa to seal off the gap between the roof and shell of an Atmospheric Storage Tank?
I work on this project which involves erection of 500,000 BBL Atmospheric Storage Tanks for storing Heavy Crude Oil and the supplier/fabricator is quoting his offer considering the tube seal option. The Tanks are 100 meters in diameter and the roofs are of double deck type.
To give you a view of the site; it is located in a highly saline, hot & humid environment with ambient temperatures ranging between 15 to 45 degrees celcius throughout the year, and rainy seasons are parctically non-existent.
How do these two types compare in operation, service life, maintenance?
Your recommendations are highly appreciated.
regards,
drno
I work on this project which involves erection of 500,000 BBL Atmospheric Storage Tanks for storing Heavy Crude Oil and the supplier/fabricator is quoting his offer considering the tube seal option. The Tanks are 100 meters in diameter and the roofs are of double deck type.
To give you a view of the site; it is located in a highly saline, hot & humid environment with ambient temperatures ranging between 15 to 45 degrees celcius throughout the year, and rainy seasons are parctically non-existent.
How do these two types compare in operation, service life, maintenance?
Your recommendations are highly appreciated.
regards,
drno





RE: Roof seal for Floating Roof Storage Tanks
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Roof seal for Floating Roof Storage Tanks
RE: Roof seal for Floating Roof Storage Tanks
If you already know this, then ignore this thread.
However, if this tank was to be erected in a rainy climate we certainly would have to worry about rain.
Floating roofs usually come with roof drainage systems which are gravity drained through hoses hanging off the roof deck and submerged inside the tank contents. Subsequently lead through drainage piping at the bottom of the tank to a closed drainage system.
regards,
drno
RE: Roof seal for Floating Roof Storage Tanks
RE: Roof seal for Floating Roof Storage Tanks
How exactly do you mean when saying:
1)"Tube seals test better in the lab..."
2)"Mechanical seals are less efficient in the lab..."
Do you mind elaborating a bit on the above statements? What kind of tests do they perform on these 2 types of seals that render these results? If it is too much trouble describing the tests, perhaps you can refer me to the article, source, or publication where this was discussed.
many thanks,
drno
RE: Roof seal for Floating Roof Storage Tanks
This topic does not really belong in this forum..
However, it has been discussed in:
www.ast-forum.com
-MJC
RE: Roof seal for Floating Roof Storage Tanks
Thanks a bunch. great site.