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


Roof Drain Floating Roof Crude Oil Storage Tank

Roof Drain Floating Roof Crude Oil Storage Tank

Roof Drain Floating Roof Crude Oil Storage Tank

We have a 180' diameter x 48'high crude oil storage tank with a Coflexip type roof drain hose.
The tank is in-service and one of the gaskets in the tank for the hose must be leaking because we are getting oil when we drain the roof water.
The topside of the roof is clean.
Has anybody ever done a repair to a roof drain hose/pipe while the tank is in service?
The repair would have to withstand crude oil, we were thinking something similar to a sock liner that they use on sewer piping.

RE: Roof Drain Floating Roof Crude Oil Storage Tank

I'm having similar problem in my plant, suspect leaking from connection. Wonder if anyone have experience with onstream repair internally during tank in service.


RE: Roof Drain Floating Roof Crude Oil Storage Tank

The hose type drain was thought to be more reliable than those with the swivel joint links. flatbottom, Is anything more known to confirm the flange leak. The hoses may have entangled between the legs or may have been crushed if it were to have been caught under a roof leg when the roof was landed.

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!


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