×
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

Maximum flow for globe valve

Maximum flow for globe valve

Maximum flow for globe valve

(OP)
Could somebody help to calculate the maximum flow through a 1" globe valve say 1/2" port size? Basically I have a small barrell with a 0.02 m3 volume at 1440 psig. There is one 1" globe valve connected with the barrel. If I open the globe valve to atmosphere, what would be the maximum flow through it?

Thanks.

RE: Maximum flow for globe valve

I get 5229.298751 scfm initial flow with the full pressure drop, assuming air at 70F(you did not specify) thru a 1" Valtek Mk1 with 0.500 seat ring, Cv 6.5.  

By the way: 113 dB, Sonic flow.  Wear Earmuffs.  

RE: Maximum flow for globe valve

(OP)
Thanks. Actually this is for fuel gas say SG 0.62. I got a 0.03 m3 barrel. I want to release it to atmosphere via a odor drum as it is a little bit sour, before it goes to odor drum, I want to put an expansion tank. I want to size this tank or vessel. Is there any rule of thumb to do this?

RE: Maximum flow for globe valve

Using Boyle' law; p1V1=P2V2
the gas in the small container you start with will expand to 2.969 m3 when it reaches thermal equilibrium.  Initially it will be cool and not expand quite as much.  

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