Previous in Forum: Basics of Pipe Stress Analysis   Next in Forum: Multi-Start Screw Threads
Close
Close
Close
31 comments
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82

LPG Sphere Thickness

09/20/2014 5:45 PM

Hello, I am making a rougth material budget for an LPG storage facility, does any one have the thickness of a 19 meters diameter or 3000 cubic meter sphere?

Thank you

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Pathfinder Tags: LPG Sphere thickness
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Guru

Join Date: Oct 2008
Posts: 42296
Good Answers: 1663
#1

Re: LPG sphere thickness

09/20/2014 5:48 PM
Register to Reply Score 1 for Good Answer
2
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20984
Good Answers: 781
#2

Re: LPG sphere thickness

09/21/2014 1:31 AM

It depends on the pressure expected, which in turn depends on ambient temperature; on the type of steel chosen; and on the weld joint efficiency. By thumbnail calculation, 150 psi, 100% joint efficiency, and 516-70 steel would require ~5 inch (~125mm) thickness. Trimming the plate sections into "orange peels" will lose maybe 20% of the raw material. This whole problem is more complex than suitable for an informal forum like this.

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply Good Answer (Score 2)
Power-User

Join Date: Oct 2009
Location: Central Midwest
Posts: 450
Good Answers: 38
#3
In reply to #2

Re: LPG sphere thickness

09/21/2014 2:53 PM

You should evaluate the following questions:

1) Do I want to store this massive amount of LPG in a single container ?

(There are operational issues and inspection compromises to consider)

2) A single container creates massive boil-off issues.

3) Has anyone ever fabricated and constructed a pressure vessel sphere this big ? You do not want to have the biggest in the world. The sphere "petals" would be very difficult to fabricate in their complex shape. Is this even possible ? Has this been done in the past with plates nearly 5 inches thick ?

4) There are foundation & siting issues with the tremendous loads imposed by the sphere supporting legs.

5) Spheres are expensive. Management may, at the last second decide that a series of factory fabricated pressure vessel "bullet" tanks are a cheaper choice.

I do not believe that this is a well thought out plan....

__________________
We have met the enemy....and he is us. POGO
Register to Reply
Guru

Join Date: Mar 2012
Location: Out of your mind! Not in sight!
Posts: 4425
Good Answers: 107
#5
In reply to #2

Re: LPG sphere thickness

09/21/2014 11:56 PM

Only 100% Joint efficiency?

He might have to get thicker with less right!

__________________
Common Sense Dictates
Register to Reply
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20984
Good Answers: 781
#7
In reply to #5

Re: LPG sphere thickness

09/22/2014 12:08 AM

I was being generous. If his radiography choices dictate a lesser joint efficiency, then the material will need to be even thicker. We haven't even discussed PWHT or MDMT, which add to the complications faced in this project.

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
Guru

Join Date: Mar 2012
Location: Out of your mind! Not in sight!
Posts: 4425
Good Answers: 107
#16
In reply to #7

Re: LPG sphere thickness

09/22/2014 9:01 PM

We should be cautious. This might end up on someones yard and we don't want this be in anyones neighbourhood.

But ok the question was budgetary so we can give it some slack.

Yet I would start some real engineering for the cost estimation so the budget does not get hit later where there is nobody there that can say:"I told you!".

__________________
Common Sense Dictates
Register to Reply
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82
#22
In reply to #16

Re: LPG sphere thickness

09/24/2014 12:49 PM

Not to worry Smith, this is only for feasibility of the project not a design. I love this forum and apreciate the such colaborative members. In Eng-tips I have no answer yet.-

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Guru

Join Date: Jun 2010
Posts: 1296
Good Answers: 102
#20
In reply to #2

Re: LPG sphere thickness

09/23/2014 7:25 PM

I replied yesterday, but it apparently got lost in the ether. I think you used the formula for a cylinder instead of a sphere. The thickness would be about half that for a sphere. I would recommend OP contact one of the several fabricator/erectors. They could provide the information he needs quite readily. I have worked with ~60 ft diameter (19 meters) spheres, but they were used for C4 hydrocarbons (butane/butylene/butadiene) at ambient temperature, so they had design pressure of 60 - 75 PSIG as I recall. To store C3 LPG's at ambient temperature would require a design pressure of almost 300 PSIG, so your original estimate of 5" wall would be in the ball park. I think it is more common when storing large volumes of LPG (if salt dome storage is not available) to use refrigerated, insulated tanks, either cone roof or spherical, at reduced pressure.

Register to Reply
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20984
Good Answers: 781
#21
In reply to #20

Re: LPG sphere thickness

09/23/2014 9:32 PM

Spherical stress would correspond to longitudinal stress in a cylinder; circumferential (hoop) stress in a cylinder is more.

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
Anonymous Poster #1
#4

Re: LPG sphere thickness

09/21/2014 3:08 PM

A sphere may not be the best and cheapest choice for LPG storage

COMPARISION OF LPG SPHERES WITH LPG STORAGE TANKS:

1) Least initial investment and financial risk in case of LPG multiple storage tanks of as compared to sphere of similar or larger volume.

2) LPG sphere of same volume needs more time for construction as compared to LPG multiple storage tanks.

3) LPG Multiple LPG storage tanks makes the project faster, economical, easier and will in turn help the company to start the terminal as soon as possible which in turn will generate good immediate returns.

4) LPG Storage tanks are much safer since it weight is distributed evenly on a larger area thus reducing chances of collapse as compared to sphere, especially in small islands porne to earth quakes, cyclones and Tsunami as can be verified from the recent incident in Japan where a row of LPG sphere went under severe fire condition.

5) Multiple LPG storage tanks have an added advantage that the load is distributed over a larger area thus the problem of uneven settlement / collapse is largely reduced.

6) In case of installations with Multiple LPG storage tanks if there is any problem / maintenance / repair / breakdown of any one tank the outlet and inlet valves of the same can be closed and the tank can be isolated, also in case of emergency the LPG product in the tank under repair / maintenance can be easily transferred to another tank located in the same plant thus increasing safety of the plant. Whereas in case of sphere if there is any problem with the sphere or its valves or pipeline the entire plant comes to a stand still (This is a loss to the company in terms of business loss, product loss, as well as extra demurrage that the company may have to pay to the shipping company if unfortunately the LPG ship also arrives the same time when the sphere has generated a possible breakdown). But in case of multiple storage tanks even if one of the tank generate a possible breakdown and the LPG ship also arrives the same time still the LPG from the ship can be unloaded to the remaining tanks and the company will have to incur least loss due to ship demurrage.

7) Though there is a common notion that for the same volume a sphere has the least surface area and least thickness and hence lesser weight and less cost but our past experience suggests that weight saved in making a sphere as compared to storage tank is lost as wastage in the development of various sections (petals and crown) thus leaving little or no benefit of the weight saved.

8) The fabrication cost increases considerably in case of sphere as compared to multiple LPG storage tanks , since the sections have to be pre fabricated at shop, shipped to site, adjusted, assembled and welded at site piece by piece in proper sequence, heat treated, radiographed and tested at site. Fabrication of sphere requires lot of time since the petals / sections are required to be assembled piece by piece in proper sequence and completion of one stage is entirely dependent on completion of the earlier stage as so on and so forth. More over there is a continuous requirement of close monitoring, blockage of all construction equipments and manpower till the entire completion of work sequence by sequence, this makes the fabrication of sphere still more costlier and time consuming as regards to blockage of manpower, machinery rent etc.

9) Sphere once fabricated cannot be moved or relocated from one place to another and if in case any relocation (due to sale of plant or plant relocation) is required the sphere has to be cut into several small pieces and transported to site and then reassembled and re-fabricated at new site this is as good as manufacturing a brand new sphere at site and hence the after sale value of a sphere is much less and as compared to lpg storage tanks which can be sold out for good returns.

http://www.lpgspheres.com/

Register to Reply
Guru

Join Date: Mar 2012
Location: Out of your mind! Not in sight!
Posts: 4425
Good Answers: 107
#6
In reply to #4

Re: LPG sphere thickness

09/21/2014 11:59 PM

9) You could roll them to the new location. Try that with a square one!

__________________
Common Sense Dictates
Register to Reply Score 1 for Off Topic
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20984
Good Answers: 781
#8
In reply to #6

Re: LPG sphere thickness

09/22/2014 12:10 AM

Now you are just trolling. No one makes square pressure tanks.

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply Score 1 for Off Topic
Guru
Engineering Fields - Electrical Engineering - New Member Fans of Old Computers - Commodore 64 - New Member Popular Science - Evolution - New Member United States - Member - New Member

Join Date: Oct 2013
Location: Illinois, 7 county region (The 'blue dot' that drags the rest of the 'red state' around during presidential elections.)
Posts: 3688
Good Answers: 89
#12
In reply to #8

Re: LPG sphere thickness

09/22/2014 9:46 AM

At least nobody who's around to talk about it after the first pressure test.

Some people are silly enough to try things like this. That is why we have the Darwin Awards, for people who have done the greatest service to the gene pool by removing themselves from it.

__________________
( The opinions espressed in this post may not reflect the true opinions of the poster, and may not reflect commonly accepted versions of reality. ) (If you are wondering: yes, I DO hope to live to be as old as my jokes.)
Register to Reply
Guru

Join Date: Mar 2012
Location: Out of your mind! Not in sight!
Posts: 4425
Good Answers: 107
#17
In reply to #8

Re: LPG sphere thickness

09/22/2014 9:04 PM

Sorry but a blatant statement that spheres can not be moved has to be highlighted.

I see no reason not to be able to move a sphere or a square container. It all depends right?

__________________
Common Sense Dictates
Register to Reply
Guru
Engineering Fields - Electrical Engineering - New Member Fans of Old Computers - Commodore 64 - New Member Popular Science - Evolution - New Member United States - Member - New Member

Join Date: Oct 2013
Location: Illinois, 7 county region (The 'blue dot' that drags the rest of the 'red state' around during presidential elections.)
Posts: 3688
Good Answers: 89
#27
In reply to #17

Re: LPG sphere thickness

09/25/2014 4:08 PM

Exactly.

"Give me a lever long enough, and a place to stand, and I can move the World"

-Archimedes (if memory serves)

"You can build a mountain anywhere, all you need is a dream, determination, and enough slaves to do the lifting and carting."

-some Pharaoh or other

__________________
( The opinions espressed in this post may not reflect the true opinions of the poster, and may not reflect commonly accepted versions of reality. ) (If you are wondering: yes, I DO hope to live to be as old as my jokes.)
Register to Reply
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82
#23
In reply to #4

Re: LPG sphere thickness

09/24/2014 1:28 PM

They actually will be 6 spheres and I calculated the thickness with a formula taken from a CR4 post from Mr. Abdel Halim Galala on Feb 2007 (sorry I wasn´t able to post the link to his post). He assumed some data and used the formula:

t=(PR)/(2SE-0.2P)

where

E= 1.0

T= 150°F

Steel: ASME SA516 gr 70, S= 20000 psi

P= 250 psi

R= 19.5/2 m=9.75*39.37" = 383.85"

so

t= (250*383.85)/(2*(2000)-0.2*(250))= 2.4"

S.F.= 3.5 safety factor

so

t= 2.4*3.5= 8.4"

Could this be close?

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Guru

Join Date: Jun 2010
Posts: 1296
Good Answers: 102
#24
In reply to #23

Re: LPG sphere thickness

09/24/2014 2:24 PM

You don't have to apply the safety factor - it's already taken into account by an allowable stress of 20,000 with a material minimum yield of 70,000. Don't forget a corrosion allowance. As I said before, I'd at least touch base with a fabricator on the feasibility of building this.

Register to Reply Score 1 for Good Answer
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82
#26
In reply to #24

Re: LPG sphere thickness

09/24/2014 5:17 PM

Thanks Bigg, I will get rid of the SF

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Guru

Join Date: Jul 2005
Location: Stoke-on-Trent, UK
Posts: 4331
Good Answers: 130
#30
In reply to #23

Re: LPG sphere thickness

10/08/2014 10:14 AM

Why have you used R= 19.5/2 m? That would be correct for 4 vessels.

3000 m3 is a huge vessel for LPG. Are you sure you don't want 3000 m3 in the gaseous state?

__________________
Give masochists a fair crack of the whip
Register to Reply
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82
#31
In reply to #30

Re: LPG sphere thickness

10/29/2014 12:08 PM

That´s the owners designer conception, I just calculated the total pipe length and quantity of accesories. Thanks for your comment, I passed all the valuable information from this thread to the owner

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Participant

Join Date: Dec 2011
Posts: 1
#9

Re: LPG Sphere Thickness

09/22/2014 3:49 AM

You would be much better of installing smaller bullet storage tanks. Much cheaper to install, much easier to maintain and operate.

Much less trouble and risk.

You could install 9 or ten 150 tons bullets in two rows with the loading and unloading arrangements.

Register to Reply Score 1 for Good Answer
Active Contributor

Join Date: Jul 2014
Location: Sacramento CA USA
Posts: 24
#10

Re: LPG Sphere Thickness

09/22/2014 4:11 AM

For a Tank of that Size AND considering it's contents I would NOT use a sphear. Many have already posted excellent reasons why. But. You should always consider the worst case situation and that is a tank explosion. My Family used to be big in LPG storage, Transfer and wholesale sales. I was very young at that time but read a great deal of books when a kid and would often have nothing to do when unloading Railroad cars of LPG into our storage tanks. So I read all the books we had over time on LPG storage. some of them were collections of disasters with LPG tanks and what was learned from these events. One thing I did learn is that it is NOT recommended to use sphearicle shapes for storage over 1000 USG. I know I know some states used Lbs rather than Gallons. We were in TX and in WA State. Most of the tanks of that era were standard A36 Steel. Now if you were to use A36 Steal for a sphear you would need 137 MM. That is going to be very heavy and frankly I can NOT figure what reasons would require using such a shape. But if you insist or have some strange reasons why it needs to be such a shape then this info will help. 1. Assuming you are going to TRY and find a steel fabricator to do such a job the easiest way is to pour the tank. Trust me on this. I know a great deal about steel fabrication. And Most fabricators do not use molds and pore molten steel but that would be the best most effeficiant way. Rolling steel of that thickness is too great of a cost. There are press breaks that can do the job but there are less than 5 in the world that can deal with steal of that thickness AND of the size you would be needing for the pedals unless you used a great deal of small pedals and that brings the cost and thickened way back up. For industrial storage the tank has to be static tested to 500 PSI. The Safty POP off valve has to be set at 300 PSI with a 5% tolerance in each direction. So it does NOT mater what pressures are going to be or what mixture of gas you are using and in what part of the world. For example pure LPG boils at -44 Degrees F. Butaine at +32 Degrees F. So in most places the two gases are mixed to get you a pressure that averages 75PSI to 150 PSI in range depending on local summer/ winter averages and extremes. Also what has to be taken into account of the size and shape of a tank is if you are going to use vapor from the top of the tank of liquid from the bottom. I will assume NOTHING when it comes to storing these gases other than the worst. So lets assume you are going to use Vapor from the top. If that is the case then you have to keep in mind the square inches of the surface of the tank in order to allow heat that is lost from boiling/evaporating LPG to a gas ( This is what is done with almost all but large industrial uses ) to keep the tank from getting too cold. Too cold of a tank not only causes the pressure to drop to a point that you no longer are getting gas at a rate that is of any use but it is also considered a hazard. Why? Because ice can form on the Saftey pop off valve. Thus. If you use such a tank shape you would have to drop the amount that is considered a full tank by almost 50%. Now even if you use liquid from the bottom the tank still has to be of such a shape ( if over 1000 USG ) to assume you are going to use Vapor. Thus to be legal your full tank will be about 25 to 30% at most of the tank true volume. Another factor in spherical tanks are how high from the ground is the tank. Why? Because in case of a leak that results in a fire the local fire department will need to keep several steady streams of water on the tank to keep it from rupturing and to keep the safety pop off valve from opening due to pressure build up from the fire causing the liquid to boil and the gas pressure up. As someone already posted this is a complex situation and this is not the best place to get the data you need. In this case there are too many variables. Where you are located and what form of steel is used etc.. But I am hoping that you get some use from this data. Now. If anyone is interested in what happens to a standard rail Car load of LPG that is in a fire that gets so hot as to actually cause the tank to explode here are the results of several cases. about 1/3 of the way from on end of the tank is where the tank will separate. The smaller 1/3 piece of the Rail Road cares tank will stay about where it is and turn inside out. Litteraly like turning a sock inside out. The other larger part will shoot off like a rocket and will travel up to 1/2 mile destroying almost anything man made in its way. Why does this happen?? I do not know. Would have to get out my calculator and work on it for a while to see why. But. If you just need the answer without knowing all of this data and guess what. You do not have to know everything there is to know about Butaine and propane to build the tank. You just have to stay within the government guild lines. But I think it is good to know. Also of note. In WA State what is called LPG is about 50% Butaine and in CA the mixture is about 80 Butaine. Very few places use pure LPG. With LPG having a boiling point of -44 degree thus in places such as the north slope of alaska they actually have to heat the tanks to get enough pressure to use the gas. Just some interesting facts. Butaine like you find in lighters as I stated earlier boils at + 32 degrees above zero. So on a cold day you could just have it in an open bucket. Same with LPG if in cold areas that get below -44 F. IF I were you. I would go with several small tanks tied together with connecting pipes to share the load. It will take more room but it will also cost less and will work better. Cesare

Register to Reply Score 2 for Off Topic
Guru

Join Date: Oct 2008
Posts: 42296
Good Answers: 1663
#15
In reply to #10

Re: LPG Sphere Thickness

09/22/2014 6:10 PM

The explosive phenomenon to which you refer is called a BLEVE. (Boiling Liquid, Expanding Vapor Explosion)

You do not want to be within a mile of one.

Train car explosion bleve - YouTube Skip to 45 seconds for the good part.

Register to Reply
Active Contributor

Join Date: Jul 2014
Location: Sacramento CA USA
Posts: 24
#18
In reply to #15

Re: LPG Sphere Thickness

09/22/2014 11:33 PM

Wow Did you see the size of the hank of steel tank. It threw that as if it were nothing. And interestingly this Video happened in the 80s. About 7 years after I moved away to and was no longer reading this stuff. But clearly the physics of it are still the same. One thing to note in that Video. It looks like that part that flew was partly inside out. That is a lot of force. I would NOT make a Sphearical tank. No way. That will for sure cause large pieces of shrapnel. In Short a claymore. I would stay with the tube tanks. We had 2 45,000 USG Tanks and 6 30,000 Gallon Tanks. RR Cares are about 35,000 Gallons. On Average. Thanks for the vidio. I had never read of the term BLEVE. Cesare

Register to Reply
Guru
Engineering Fields - Electrical Engineering - New Member Fans of Old Computers - Commodore 64 - New Member Popular Science - Evolution - New Member United States - Member - New Member

Join Date: Oct 2013
Location: Illinois, 7 county region (The 'blue dot' that drags the rest of the 'red state' around during presidential elections.)
Posts: 3688
Good Answers: 89
#29
In reply to #15

Re: LPG Sphere Thickness

09/25/2014 4:17 PM

Holy fugu!

When it started I was trying to get a sense of scale, but when it started to lift into a mushroom, that told me all I needed to know.

If I'm close enough to it to get a good sense of scale, I won't live long enough to gauge its size.

I thought you were just turning a phrase when you said 'not within a mile,' but after seeing that, I can tell you were talking to your enemies and the people you owe money two. Only a mile away and you've still got a good chance to be dead.

__________________
( The opinions espressed in this post may not reflect the true opinions of the poster, and may not reflect commonly accepted versions of reality. ) (If you are wondering: yes, I DO hope to live to be as old as my jokes.)
Register to Reply
2
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 30413
Good Answers: 819
#11

Re: LPG Sphere Thickness

09/22/2014 4:39 AM

The thickness of the vessel will be on the mechanical assembly drawing for the vessel, which will have been conceived by competent designers well in advance of the materials budget being developed. The temperature and pressure of the contents, the materials selected and the diameter of the vessel will be in the design calculations for the vessel, which will have been incorporated into the mechanical assembly drawing. So, go back to the design office, and ask there.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply Good Answer (Score 2)
Power-User

Join Date: Jan 2014
Posts: 206
Good Answers: 5
#13

Re: LPG Sphere Thickness

09/22/2014 9:54 AM

For reference, an oil refinery where I am working uses several horizontal bullet tanks for propane storage. Each tank is ~9' ID x ~63' long (~30,000 gallons = ~113 cubic meters). They are 1" thick, rated for 200 psig at 100 Deg F.

__________________
There are 10 kinds of people in the world.... Those who use binary code, and those who don't.
Register to Reply Score 1 for Good Answer
Active Contributor

Join Date: Jun 2012
Posts: 15
#14

Re: LPG Sphere Thickness

09/22/2014 5:37 PM

Watch a few Star Trek episodes and make it out of "transparent aluminum". That way you can easily see how much LPG is inside. Or just give Scotty a call. He'll fix you right up. Here's a link to help you out.

http://en.memory-alpha.org/wiki/Transparent_aluminum

Register to Reply
Guru
Engineering Fields - Electrical Engineering - New Member Fans of Old Computers - Commodore 64 - New Member Popular Science - Evolution - New Member United States - Member - New Member

Join Date: Oct 2013
Location: Illinois, 7 county region (The 'blue dot' that drags the rest of the 'red state' around during presidential elections.)
Posts: 3688
Good Answers: 89
#28
In reply to #14

Re: LPG Sphere Thickness

09/25/2014 4:10 PM

Here's a better link to REAL Transparent Aluminum:

http://en.wikipedia.org/wiki/Aluminium_oxynitride

__________________
( The opinions espressed in this post may not reflect the true opinions of the poster, and may not reflect commonly accepted versions of reality. ) (If you are wondering: yes, I DO hope to live to be as old as my jokes.)
Register to Reply
Guru

Join Date: Jan 2010
Location: Mineral wells Tx
Posts: 632
Good Answers: 34
#19

Re: LPG Sphere Thickness

09/23/2014 5:12 AM

PD 5500: Specification for unfired Fusion welded pressure vessels
EEMUA: Guide for design, construction and use mounded horizontal cylindrical vessels for pressurized storage of LPG at ambient temperatures
EEMUA 190: Selection criteria LPG storage systems
ASME sec. VIII Div. 1 and 2

Register to Reply Score 1 for Good Answer
Power-User

Join Date: Jan 2014
Posts: 206
Good Answers: 5
#25

Re: LPG Sphere Thickness

09/24/2014 3:27 PM

The easiest way to get ballpark information is to contact a company that makes LPG tanks and ask them for a ballpark cost estimate. They will probably give you a few options and recommendations. (This is not intended to be an endorsement for the following company):

__________________
There are 10 kinds of people in the world.... Those who use binary code, and those who don't.
Register to Reply Score 1 for Good Answer
Register to Reply 31 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Copy to Clipboard

Users who posted comments:

adreasler (4); Anonymous Poster (1); Ashok Kumar Agarwala (1); bigg (2); cesare (2); Codemaster (1); Cuyanausul (4); IdeaSmith (4); lyn (2); melanie135711 (1); MJCronin (1); PWSlack (1); Tornado (4); tribefan1952 (2); Whitephone (1)

Previous in Forum: Basics of Pipe Stress Analysis   Next in Forum: Multi-Start Screw Threads

Advertisement