×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Chemical Injection Point Assembly

Chemical Injection Point Assembly

Chemical Injection Point Assembly

(OP)
Hello guys.

I have a Topsides chemical injection assembly (top injection orientation) which is supposed to come into a main flow line. The chemical injection line and the quill are made of 316L while the main line is LTCS.

My question is what sort of gasket needs to be placed between the stainless steel injection point flange and the LTCS main pipe header flange? Is it stainless steel, insulation gasket, soft iron or some other suggestion.

I will appreciate responses with reasons why a particular option is better to be selected compared to others. Thanks

RE: Chemical Injection Point Assembly

I will put a SS Flexitallic Spiral Wound Gaskets.

luis

RE: Chemical Injection Point Assembly

(OP)
@ Luis. Thanks. Any reason/s for your suggestion please?

RE: Chemical Injection Point Assembly

IMO, the gasket type as specified in the LTCS Spec should be fine as the LTCS is still used in the process after chemical injection point in your system. As the chemical is typically injected in the middle of the process pipe and pointing downstream. the flange connection of the SS quill to the LTCS pipe will see mostly process fluid.

RE: Chemical Injection Point Assembly

(OP)
Thanks @mk3223.

With an LTCS gasket in place and process liquid getting to the flange connection of the SS injection line and LTCS process line, will the gasket not get pitted over time thereby leading to leaks?

RE: Chemical Injection Point Assembly

It is widly used in oil refinery industry with good results.

luis

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


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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