Thickness Calculation

Not enough information. We need to know the pressure (if it is a closed vessel) or the depth and specific gravity of the fluid (if it is an atmospheric vessel).

Low pressure, Closed Vessel, just for Water storage tank. pressure operation about 1 atm, cosistency 0%,

Why not buy PP, FRP or PE tanks pre-engineered for the purpose? Dirt cheap, options galore and they do the math for you.

API 650 parr.3.6 (Min 5mm)

Dear Friend,

Design of a Vertical Storage tank as reqd. by you is a very complicated exercise and involves :

- Shell Design, which is relatively easy

- Base plate design

- Roof Design, which is the most difficult of all. Fixed roof/ Floating Roof/ Central Column/ Roof supporting Structure etc.

If you have no prior experience it will be worthwhile to hire a consultant who can do the job for you for a small fees and you can also get some experience.

Hope it helps.

Measure the outside diameter and the inside diameter. Subtract the ID from the OD, then divide by 2.

Problem solved, unless you really meant that you want to design a tank and determine how strong it will have to be to keep your professional liability insurance at a manageable level.

Is that what you are asking?

BAB

What is the formula used to determine the minimum wall thickness after bending a boiler pipe?

Read more: http://wiki.answers.com/Q/What_is_the_formula_used_to_determine_the_minimum_wall_thickness_after_bending_a_boiler_pipe#ixzz1za8G9ph6

See ASME B31.3 for low pressure boilers. For power boilers use ASME B31.1

Specifically Paragraph 304 where the following formula is found:

t= PD/ 2[(SEW/I)+PY]

Where:

I= [4(R/D)+1]/[4(R/D)+2] for the extrados of the bend

and

I= [4(R/D)-1]/[4(R/D)-2] for the intrados of the bend

t= minimum wall thickness required at design pressure
P= design pressure required
D= Pipe diameter (outer diameter)
S= allowable stress at temperature (20,000 psi for A269 TP304 SS at 300 degrees Fahrenheit)
E= quality factor (0.85 for fusion welded ). See B31.3 for other values.
W= Weld joint strength reduction factor (1.00 for non welded) see B31.3 for specific values - if you do not have welds in your bend then use 1.00
Y= 0.4 for Ferritic Steels at 900 degrees Fahrenheit or lower. See B31.3 for other values.

Read more: http://wiki.answers.com/Q/What_is_the_formula_used_to_determine_the_minimum_wall_thickness_after_bending_a_boiler_pipe#ixzz1za7pTQpw

Formula calculating Thickness of a Cylinder:

((pi*d Outside)-(pi*d inside))/2

What is the formula to calculate minimum thickness of base plate?

base plate for what??
pump and electric motor

Read more: http://wiki.answers.com/Q/What_is_the_formula_to_calculate_minimum_thickness_of_base_plate#ixzz1za8zkzy2

Read more: http://wiki.answers.com/Q/What_is_the_formula_to_calculate_minimum_thickness_of_base_plate#ixzz1za8r26Gv

Dear Mr.Dedek,

At the first instance, You have not indicated the volume of the Tank required and fluid to be stored. The density of the fluid will play vital role for deciding the thickness. Since you have given the HEIGHT of the TANK, and later informed , it is water, the density is 1 and hence clear.the VOLUME is to be compulsorily given so that the Dia. of the tank can be calculated.

Once Volume is known, we can calculate the Dia. of the tank. In simple terms, the thickness can be calculated from the Formula p x d/ 2t = Fs, where p= pressure exerted by the water column in terms of Kg/cm^2, d=dia of the tank, t= thickness of the tank, Fs = Permissible Stress for round tank. Multiply this thickness by FACTOR of SAFETY as per the Stds.

But there are codes and guide lines for tank construction - which takes many factors in to account, and pl. follow that.

DHAYANANDHAN.S

Hi,

I read all posts but finally I did not understand you want to calculate thickness for pressure vessel or storage tank?

theses two item are completely different and there are different code for design calculation for thickness

if the pressure is 15 or higher than 15 psi, then it is pressure vessel and you need to design based ASME Code Section 8 Div 1

But if less than 15 psi it is storage tank and must be designed based API 650 code

pressure vessel shape is cylindrical with dished head, but storage tank is vertical and cylindrical and it need bottom plate and concrete foundation and etc

many companies or individual need a vessel with pressure less than 15 psi but regarding vessel sketch and shape prefer to order pressure vessel

any way one of participant in this post provided you the storage tank formula and i am going to provide you pressure vessel formula which is very easy

t=PD/(SE+0.6P) + CA

P is design pressure

S is allowable stress for your material i think will be 20,000 psi

E is welding joint efficiency for full radiography you can take it 1

CA is corrosion allowance which your material is SS and you can consider 0

for more information to decide between pressure vessel and storage tank you may review following articles:

www.inspection-for-industry.com/pressure-vessel-definition.html

www.inspection-for-industry.com/storage-tank-inspection.html

regards

Hi,

I am correcting thes second link

www.inspection-for-industry.com/above-ground-storage-tank-inspection.html