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!

*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.

Jobs

Non synchronous peak at ammonia booster pump

Non synchronous peak at ammonia booster pump

(OP)
Dear Experts,

We are experiencing high vibration at ammonia booster pump. The spectrum shows dominant non-synchronous peak at 1.19 order. This pump has a double John crane mechanical seal (109B) in tandem arrangement. Is it something related with mechanial seal? Has anybody experienced any similar phenomenon in pump?

[Attached is the vibration report along with spectrums]

Your valuable comments, experiences are highly appreciated

Thanks in advance.

RE: Non synchronous peak at ammonia booster pump

The arrow points to the pump shaft, not the casing. Is this really a shaft measurement, or a casing measurement?

Do you have a strobe light? I'd tune the strobe to the frequency of interest and have a look at that region. Might find a component creeping around or something.

I was going to suggest you post over here, but looks like you beat me to it pipe
http://www.maintenance.org/forum/posts-about-vibra...

RE: Non synchronous peak at ammonia booster pump

(OP)
Yes, Tmoose,this is a casing measurement.

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


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