×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

ASME VIII storage tanks
2

ASME VIII storage tanks

ASME VIII storage tanks

(OP)
I have a client spec asking for an atmospheric storage tank to be designed to ASME VIII div 1.
I understand this code is for pressure vessels not atmospheric tanks - any advise please ?

RE: ASME VIII storage tanks

Seems like some client education is in order.  Call a vendor and get two ball park prices, then tell your client how much money you can save him if he drops his rediculous spec.

"If everything seems under control, you're just not moving fast enough."
- Mario Andretti- When asked about transient hydraulics
http://virtualpipeline.spaces.msn.com

 

RE: ASME VIII storage tanks

On the other hand, maybe it's the service provider that needs some education... seems that is why he's here.  Could be that the client has mistakenly chosen the wrong spec.  Could be you don't know the full story why the client has chosen what they did.  Be sure you know the full story before trying to convince your client otherwise.

RE: ASME VIII storage tanks

I've seen similar specifications.  One question to ask is whether it actually needs an ASME code stamp, or whether it is just to be designed per Section VIII.

RE: ASME VIII storage tanks

Mikey....

It has been my experience that shape plays a factor.

If it is large flat-bottomed atmospheric tank,then the rules of API-650 are typically used.

If it is a smaller, atmospheric tank with rounded "heads", then the tank is typically "designed, fabricated and inspected" to ASME VIII, but no code stamp is required.

Many tank fabricators hve been operating this way for many years.......The lack of clear standards for smaller quality tanks operating at a pressure of 2.5 to 15 psig is a hole in the tank rules, as far as I am concerned.

The Europeans have an ISO standard for this particular category of tanks.

-MJC

   

RE: ASME VIII storage tanks

Actually, there's a lot bigger hole in the tank rules.  API-650 is for oil storage, AWWA D100 is for water storage.  Pretty much anything else in a flatbottom tank is not covered by any standard.  My idea is for a standard for "Genereal Industrial Tanks".  Horizontal tanks for non-flammable products and silos would be other applications.

RE: ASME VIII storage tanks

JStephen....

Your idea for a new, badly needed standard has been around for a long, long time. It will never happen in the USA.....

Neither API, ACHie nor ASME wants to take on any possible liability for a new standard, since this kind of standard could show up in a courtroom some day.

Yes, I am aware that API650 is titled "Welded Steel Tanks for Oil Storage" but it is used throughout the process plant chemical industry, the power industry  as well as many others.

It is good, complete and well written code

-MJC

   

RE: ASME VIII storage tanks

MJCronin,
I agree with you on the shape issue.  I also have specified ASME VIII for tanks simply because it is a contractually neat way to define the quality and anticipate the resultant design.  It also ensures suffciently robust nozzles or saddle (or even shell).  Unfortunately the expensive features such as manways are grossly overdesigned.

By contrast, when faced with rectangular tanks, loose steel design manuals, Codes and "industry practice" are often specified, with the end result a mystery.

I have often used API 12F for shop fabricated tanks, but that generally implies vertical, flat bottomed tanks - typically oilfield "frac" tanks.  Perhaps this standard could be the basis for a more generic tank standard?
Regards,
Bill  

RE: ASME VIII storage tanks

A symmetrical steel tank (any shape) with an internal  pressure equal or higher then 2.5" inch water..
could be designed according to API 620 and not 650

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources