Contact US

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!

*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

API 650 tanks manway Nozzle neck

API 650 tanks manway Nozzle neck

API 650 tanks manway Nozzle neck

Dear all

Please clarify the NDT requirement of the longitudinal seam with Double groove in Manway neck not flush type ( 24" ,30") as per API650.

I Understand that the manway nozzle necks plate thickness are selected only from table 5.3 & 5.4 and no joint efficiency plays the role as simmilar to ASME Sec VIII.

API 650 says incase of a flushout type then the Longitudinal seam is required to undergo 100% RT

your help in this regard is appreciated.

RE: API 650 tanks manway Nozzle neck

Are you working on a manway or a flush type cleanout?

RE: API 650 tanks manway Nozzle neck

Many way only.....sorry  if I was not clear.
I am not concerned with flush type cleanout as the section is specificaly deals with flush type clean out

RE: API 650 tanks manway Nozzle neck

Section deals with flush type connections where "flush" means that the bottom (invert) of the opening is at the bottom of the shell (top of the bottom plate).  If you con't have a flush type connection then you don't have to read this section.  If you have a manway that is "flush" with the bottom of the tank then you have to follow this section.

RE: API 650 tanks manway Nozzle neck

Note that the referenced section is for flush nozzles, not flush manways, also.

RE: API 650 tanks manway Nozzle neck


Ok I appreciate your comments.

I am still looking for the answer to my question as what will be the NDT for the Long seam welding of 30"/24" manway and which section if API 650 deals with this

Thanks in advance for the reply.

RE: API 650 tanks manway Nozzle neck

I aplologize for being slow to understand, but what is the "long seam" you write of?  Can you make this dummy a picture?

RE: API 650 tanks manway Nozzle neck

More to the point- if API doesn't specify any NDE for the weld, then there wouldn't necessarily be any.

RE: API 650 tanks manway Nozzle neck

Refer to API 650 8.1.1 which states that RT is not required for nozzle and manway necks fabricated from plate. Does this answer your quesion?

RE: API 650 tanks manway Nozzle neck

Thank you UTDudue.......Your reply clarifies my doubt

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! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close