×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

flow calcs

flow calcs

flow calcs

(OP)
can any body please tell me what the formula is for determining what the max flow of water (gals/min) is through a pipe at a given pressure (psi) per foot?

thanks

das123

RE: flow calcs

It will depend on what your aim is:

max dP, max velocity is just two obvious criteria

When you have choosen than then you must select a design value (eg. 0.5 bar/100 m or max. velocity 1 m/sec)

Best Regards

Morten

RE: flow calcs

If you are looking for an equation that relates Q to dP/L then combine the following found in Crane TP-410

Q = 236*d^2*sqrt[dP/(K*p)] and K = (f*L)/d
or
Q = 236*sqrt[(dP/L)*{d^5/(f*p)}]

where
Q gpm
dP delta Pressure psi
L length ft
d diameter inch
f friction factor, dimentionless, per Moody chart or from Crane TP-410 chart for turbulent flow.
p specific weight lbs/ft^3

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



News


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