×
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 stamp requirements machinery and equipment

ASME stamp requirements machinery and equipment

ASME stamp requirements machinery and equipment

(OP)
Would appreciate if someone would tell me what ASME, NB and other jurisdictions ( specifically concerned about ASME sec Viii div 1 ) says about need to design and stamp Mechanical equipment such as process or rotating eqpt. In my case I am working on a project in California with an unfired absorption chiller?

The unfired absorption chiller process operates under Vaccum but has imbedded piping and Heat exchangers. The three main indepedent piping system and components include  a) hot water/steam @200-250+ deg F, < 100 psi, b) chilled water @ 40-50 deg f, and < 100 Psi  and c) cooling water @ 70-90 Deg F and < 50 psi.  

Info also is need on pressure test requirements? under vaccum vs. the areas that are under pressure?

Would the name plate refer MAWP refer to which area of the chiller ( pressure side or vaccum side)?

Thank you in advance?  

RE: ASME stamp requirements machinery and equipment

Many of your questions will be answered by careful reading of paragraph U-1(c) of Section VIII, Div 1. You may need an expert to sort out what Code covers each specific item.

RE: ASME stamp requirements machinery and equipment

Yehia,

The best thing you can you could do in this case is contact the jurisdiction where the chiller is going to be installed. If you go to the National Board website at www.nationalboard.org. you will be able to get the name and e-mail for a jurisdictional contact. Each jurisdiction is different in what they regulate and what they require to bring a pressure vessel into their jurisdiction. In our jurisdiction we have absorbtion chiller systems, and we do not regulate any of the vessels. The steam piping to the vessel would be inspected only if it was above 15psi. If you are using hot water then pipe size would come into consideration.

RE: ASME stamp requirements machinery and equipment

Suggest you contact Dept.of Industrial Relations,CA
415-557-1878

If you are repairing this equipment contact your AIA.

RE: ASME stamp requirements machinery and equipment

If the vessel is designed for vacuum and pressure you test and certify for both. as:  MAWP pressure PSI:___ Vacuum PSI:___

Best for cert. needed, contact jurisdiction: the state of california, DOSH and if within the City of L.A., contact the dept of elevators and pressure vessels as well.
Be carefull if the item is larger in di. of 6" and pressure greater than 15 psi, you need stamping (ASME certification),
also some Cities will want your items/vessels to be ASME certified, they check at time of final installation inspection and you can have a big surprise.So the State can tell you a NO need and the City where you installed says yes, you figure it.
Also the Insurance Co, insuring the equipment, (they know it all).
ER

ER

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