Welcome to the aboveground storage tank forum, a bulletin board dedicated
to tanks, fuel tanks, plastic tanks, fuel storage tanks, and above ground storage
tanks (AST) API650, API653 & UL142
aboveground storage tanks (AST) and chemical plastic tanks. Remember the forum
is made up of volunteers from experts to beginners. Unfortunately, we cannot allow free commercialism that promotes products, services, or sites.
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Plumbness level alowed in storage tank as per api-650 design - Wednesday, February 16, 2011 - Anup API-653 Certification ID: 38985 [812]
In api-650 dimentional clause for plumbness, it has been written as The maximum out-of-plumbness of the top of the shell relative to the bottom of the shell shall not exceed 1/200 of the total tank height.
I want to know that the subject cluase of API talks for plumbness acceptance level for single shell course or total plumness of total tank height.
Re: Plumbness level alowed in storage tank as per api-650 design - Thursday, February 17, 2011 - Ced [915]
This means for the total height of the tank. For single shell, you have to follow spec for permissible variations as stated in ASTM standard applicable 7.5.2 a
Re: Plumbness level alowed in storage tank as per api-650 design - Saturday, February 26, 2011 - S.SHAHUL HAMEED [980]
Kindly refer API650 Clause 7.5.2 Plumbness a. The maximum out-of-plumbness of the top of the shell relative to the bottom of the shell shall not exceed 1/200 of the total tank height. The out-of-plumbness in one shell course shall not exceed the permissible variations for flatness and waviness as specified in ASTM A 6M/A 6, ASTM A 20M/A 20, or ASTM A 480M/A 480, whichever is applicable.
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ETANK2000: The #1 CAE tool for aboveground storage tank design / re-rating / inspection evaluation to API-650, API-620, API-653, & UL-142
AMETank (comming soon): All of the ETANK2000 engineering / code calculations plus Bill of Materials, Fabrication Drawings, and (soon) Estimating.
4611 Broad River Road, Suite I
Forum 
In api-650 dimentional clause for plumbness, it has been written as The maximum out-of-plumbness of the top of the shell
Industrial Training School and AIS Forensic Testing Laboratory.
