×
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

control valve choose

control valve choose

control valve choose

(OP)
My name's Lorenzo,
we have to replace an old controlvalve with a new one.
the vendor of this valve no longer exists and we have to contact another vendor.
we don't have CV of this valve but all this data:
PIGNONE SUD control valve 4" ansi 600 port diameter 2" 1/2

delta P 35 bar
flow 25000m3/h
gas density 0,98 kg/m3

for my calculation the CV shuld be about 60, but i'm not sure we are going to buy a Fisher control valve, wich valve you suggest me?

thank you very much for your attention,
Lorenzo

RE: control valve choose

you sure the company doesn't exist anymore? PIGNONE could be Nuovo Pignone, an Italian company. They are valve manufacturers amongst other things, and belong to GE Oil & Gas (General Electric).
find more information here:
http://www.gepower.com/dhtml/geoilandgas/en_us/prod_sol...

RE: control valve choose

(OP)
thank you very much, i missed this web site until now.

cheers

RE: control valve choose

A 4" Fisher ED control valve with reduced trim has a 2 7/8" port which is fairly close to your valve.

It has a full open Cv of 112 which compares nicely with your calculated Cv required of 60.  All in all, everything seems to be consistent so far.

RE: control valve choose

(OP)
thank you,
i thought about model ED but I know that reduced trim was only for EHD,EHS.
This makes me happy, I was on right way.
Thank you again friends

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