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Storage Tank Part Definitions

Storage Tank Part Definitions

Storage Tank Part Definitions

(OP)
Hi everyone,

I'm totally new to storage tank design and wondering if someone can help explain to me or show me a sample figure that I can look up to help me understand the following terms:

- Shell Plate
- Roof Plate
- Knuckle Plate
- Floating Roof

Thanks in advance

RE: Storage Tank Part Definitions

Try to get a copy of Std. API650.
Greetings

RE: Storage Tank Part Definitions

Shell plate: the round segments of the "can".  Often 8 or 10 ftte high and 30 to 40 feet long, rolled to the correct diameter and stacked to form a culindrical shell.

Roof plate: most tank roofs are too large to be made from a single plate of steel, the pieces are called roof plates and are often 8 feet wide by 20 feet long.  They are often supported by rafters and are overlapped and welded to cover the tank.

Knuckle plate: a plate that is curved in two directions and forms a rounded intersection between the tank shell and the tank roof, or the tank shell and the tank bottom, or at another location where there is a change in shape or direction of the tank.

Floating roof: a raft that floats on the liquid surface.  Most often made from steel or aluminum.  Used to reduce the evporation and/or keep rain or other contamination from getting in the liquid.

Suggest you get a book on Aboveground Storage Tanks (AST).  Phly Meyers wrote one, probably on Google or Amazon.

RE: Storage Tank Part Definitions

(OP)
Thanks everyone for your reply.

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