×
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

Insulation gasket for flanged joints

Insulation gasket for flanged joints

Insulation gasket for flanged joints

(OP)
Is there a method to define the use (or other wise) of Insulation gasket sets on flange bolts to combat corrosion, when making a flange joint with flanges manufactured from different metals.
Regards

RE: Insulation gasket for flanged joints

I have used Isolation flange kits for isolating pipelines that have Cathodic protection. The bolt holes are sleeved. Try the corrosion forum for more assistance or type Flange Isolation Kit into Google. It produces lots of Specs.

RE: Insulation gasket for flanged joints

Try the flexatallic website.

If you're worried about the corrosion of the gasket, then stainless steel is the material of choice since affinity to carbon steels are low.  If you are worried of the flange itself undergoing galvanic corrosion, you can paint the component to insulate it from the opposing dissimilar metal.

I've never experienced this to be an issue.  What kind of working medium are you using?

Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada

RE: Insulation gasket for flanged joints

There are standard flange bolt insulation kits made just for this purpose.  I think they are made of phenolic.  Just do a web search for flange bolt insulation kit.

Thanks!
Pete

RE: Insulation gasket for flanged joints

You don't want to use this type connections unless it is absolutely necessary.  
As posted by 74Elsinore comeback with the process fluids and the materials of construction.  


Here is a company that has about everything you will need if you have to go that way.

http://www.farwestcorrosion.com/ccp/flange.htm

RE: Insulation gasket for flanged joints

Name of the primary mfg of such isolation gaskets is Pikotek

http://www.pikotek.com/

I have no business relationship with this company except as a user.

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