INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

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!

Join Eng-Tips
*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.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

About selection of valves and process and not a constructive

Share

About selection of valves and process and not a constructive

About selection of valves and process and not a constructive

(OP)
I opened this topic for discussion on the criteria for use of valves. Usually there is always only the literature on the constructive part of the valves, and almost never on the criteria for selection and use of valves. Does anyone know any simple criterion or book, or form that describes a simple part of the process, use, classification and selection of valves? When using globe or butterfly. Available in the literature says that butterfly does not have good sealing properties, but manufacturers are already saying that their butterflies have excellent tightness. Already in the gas lines are not recommended. There is a criterion, link, site, a book that explains this process more fully?

RE: About selection of valves and process and not a constructive

That is a tough one.  There are books, but none I would recommend.  They all seem to latch onto manufacturer's claims and don't add any field experience.  Starting at page 147 in the document at Classroom Handouts I try to address those kind of issues, but you can bet that more than a few folks here will have other opinions on the subject.

David  

RE: About selection of valves and process and not a constructive

Agree with zdas04, that is a tough one!

Statoil (Norwegian oil company) have made a valve selection manual to be used for their projects.
Not to much info on why they have concluded as they have, but a lot of information on what type of valve to use in different services.

The link:
http://www.tr2000.net/TR2000/document_space/get_document.jsp?docid=20101012124445&fr=1

AKA milanflyer@ http://www.valvezone.com

RE: About selection of valves and process and not a constructive

You could look at the fisher control valve handbook. Its free and quite comprehensive. Get it from the Fisher web pages.

Best regrads

Morten

RE: About selection of valves and process and not a constructive

You're not going to find a comprehensive single reference on this subject.  The basics are pretty straightforward, but the details change as time goes on and as valve technology improves- and as existing valve technology gets cheaper.
 

RE: About selection of valves and process and not a constructive

ENGMechanical:

Try getting a hold of and having a look through this book:

Valve Selection Handbook - Engineering Fundamentals for Selecting the Right Valve Design for Every Industrial Flow Application (5th Edition)
Edited by: Smith, Peter; Zappe, R.W. © 2004 Elsevier  

Regards,

SNORGY.

RE: About selection of valves and process and not a constructive


Hello ENGMechanical,

In spite of the good references above, note that none of them will ever be complete. Since different applications with different medium compositions at different locations quite often require different solutions.
The best way to learn if a valve is suitable for an application is to ask for the experience of 'the guys in the field'.

.... experience and grey hairs seem to keep eachother in balance smile

Regards,
Terje
 

RE: About selection of valves and process and not a constructive

I agree with terje61, if you go and specify a valve and its wrong it comes down to you, is the application your reading about 'EXACTLY' the same! Both the manufacturers and people on the plant know what works and what doesn't. Manufacturers have a wealth of experience built up over decades of applications. Most have an application log.
 Get a quote for your perticular application.
I've been on exactly the same PE plant through out different locations in the world and all had thier own character and needed different valves.  

RE: About selection of valves and process and not a constructive

(OP)
Dear; zdas04; Actionman123; MortenA; Actionman123;
moltenmetal; SNORGY; terje61; Burdy and all others. My sincery thanks. As noted by our colleague, the question is a perfect stepping on each valve and the valuable experience overall in the field. Design a flowchart of a plant, or steam, PSA, Haber Bosch or a gas line, just so. Obviously a manual does not solve years of experience. I thank you all. The documents that you send is very helpfull. Best Regards. Edy

RE: About selection of valves and process and not a constructive

zdas04,
Thanks for sharing.. I like you slide #181 hahhah

RE: About selection of valves and process and not a constructive

Pumpsonly,
I had a Chinese speaker in the class the last time I put it on and he said that the translation was a bit literal, but not too far wrong.

For those that don't want to bother downloading an 8MB file, I suggest on that slide (with tongue firmly in cheek) that an adequate Safety Program might be a sign saying "Dying Right Here Strictly Prohibited".  It is a translation from some Chinese characters.

David

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!


Related News

Resources

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