×
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

Suitable material for gasket application

Suitable material for gasket application

Suitable material for gasket application

(OP)
Hi all,

I'm a bit stumped on selecting a material for a gasket application with the following requirements:

1. Fireproof (in installation condition) according to AC 20.135
2. Compressible up to 30% of thickness without cracking
3. Thermal conductivity: 0.16 to 0.19 W/(m.K)
4. Maxiumum temperature: 535degC (995degF)

The closest material I've found is a variant of Thermiculite, but unfortunately these gaskets need to either be machinable or able to be layered up to 6mm thick. I know with Thermiculite they glue the layers together with Spraymount which isn't particularly suitable in the condtions required.

Thank you in advance for you advice and help.

Kind Regards,

Rachael.

RE: Suitable material for gasket application

(OP)
Hi Pat,

Thanks very much for your reply - I actually work for a silicone business and even the best compound is only good for around 320degC continuous use, even with fabric/pulp reinforcement.

Thanks very much for you suggestion though.

Kind Regards,

Rachael.

RE: Suitable material for gasket application

What else than metal (stainless steel or similar) can withstand this temperature? I think that's the only possible direction you should follow.

RE: Suitable material for gasket application

Can the "gasket" requirement be met with a metal bellows and some non-resilient seals at the ends?
Provides sealing, flexibility and Hi temperature operation. Controlling thermal conducitvity ??

RE: Suitable material for gasket application

Unless you want to use asbestos I would take a look at a Silco Seal.  Every place we have tested this gasket in process it has come through with flying colors.  As with spiral wound gaskets you have to look at the oxidation potential of the process.

http://www.selcoseal.com/

RE: Suitable material for gasket application

Unless you want to use asbestos I would take a look at the Selco Seal. Every palacw we tested this gasket it has passed whith flying colors.  Just remember that as with spiral wound gaskets the oxidizing potential of the process material has to considered  when selecting the filler.

http://www.selcoseal.com/

Could you use a metal O-ring?

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