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

material selection for pneumatic valve

material selection for pneumatic valve

material selection for pneumatic valve

I have designed and built a pneumatic valve (current quantity four) with a G2 cast iron body and spool made of S7(Rc 50) with a lapped 45* seat and a land width of .125". It is used to control a circuit handling 250 psi for a valve gated hot runner.

Is this a good material selection for the body and spool?

I am considering using Dura-Bar 65-45-12 Ductile Iron
in replacement of the G2 for ease of manufacture but am concerned with the life of the seat.

Any suggestions?

RE: material selection for pneumatic valve

Your vlave material choice is dependent upon the process fluid, where it is to be used. That should have been the primary criteria along with other design factors, not an after-thought.

Various pneumatic valve types, sizes as well as material selection guides are available from a number of instrumentation suppliers like Invensys, Honeywell, Rosemount etc.  

RE: material selection for pneumatic valve

Generally pneumatic valves are manufactured either from stainless steel or an Aluminium or Zinc/Aluminium Alloy.

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


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