Sites: GlobalSpec.com | GlobalSpec Electronics | CR4 | Electronics360
Login | Register
The Engineer's Place for News and Discussion®

Previous in Forum: Hydraulic Press vs Bolt Torque   Next in Forum: Looking for a Welding Electrode Selection Book
Close

Comments Format:






Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







3 comments
Anonymous Poster

Lift Lugs on Pressure Vessels

05/24/2010 2:05 AM

Hi all, just wanted to ask if anyone know what standards to use if I would want to design lifting lugs for ASME VIII div 1 vessels? From the pressure vessel design manual, I can design the thickness and dimensions of the lifting lug, but is there any standard guidelines in terms of where the lifting lug must be located on the vessel? Thanks!

Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Ketchikan, AK, USA
Posts: 15168
Good Answers: 591
#1

Re: Lift lugs on pressure vessels

05/24/2010 2:25 AM

For starters, it would make sense to place the lifting lug at the top center of the vessel in the orientation it is intended to occupy. If this will overstress the head in a vertical vessel, another choice would be two lugs on the shell, placed 180° apart near the intended upper end. Whatever you do, it will depend on whether or not the vessel is pressurized when you lift it. If so, you must consider the combined lifting/pressure forces; if not, they can be treated separately.

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Reply
Anonymous Poster
#2

Re: Lift Lugs on Pressure Vessels

05/25/2010 3:03 AM

You can use codecal to make the calcuation and design, it is limit to the lug weled to the shell...

Reply
Power-User

Join Date: Oct 2009
Location: Central Midwest
Posts: 325
Good Answers: 23
#3

Re: Lift Lugs on Pressure Vessels

05/28/2010 3:04 PM

The number, location and type of lifting/tailing lugs depend on the vessel size weight and the istallation specifics of your installation.

You could have a "wide short vessel" that would require many lugs on the top head or you could have a tall column that would require "lift trunions" on the top shell and one or two tailing lugs to get the vessel upright.

There is no easy answer to your question and a rigging/placement scheme depends on some subjective decisions as well as possible limitations of the the lifting equipment itself.

My opinion only

__________________
We have met the enemy....and he is us. POGO
Reply
Reply to Forum Thread 3 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); MJCronin (1); Tornado (1)

Previous in Forum: Hydraulic Press vs Bolt Torque   Next in Forum: Looking for a Welding Electrode Selection Book
You might be interested in: Lifting and Rigging Attachments, Lifting Jacks