Originally posted by eaglejay
Leader
Collapse
Announcement
Collapse
No announcement yet.
Hydraulics question?
Collapse
X


Hey, just a quick reference. A 4 inch large diameter hose line has 10 psi friction loss per 100 ft for a flow of 1000 GPM!!!! Less than 5 psi flowing 500 GPM.
In other word vey low loss.
Leave a comment:

we were taught 2 ways to figure out friction loss...q squared method...but also gallonage...they just want us to know 1 way and to get it right!! they don't care which one we use...needless to say I have grown accustomed to the gallonage method...which left me in the dark to do the 4"...Although it worked out well for me and received a good quiz grade!!! Thanks for all help!!!
Leave a comment:

Bob pretty much summed it up.
Coefficient (c) Quantity (Gpm divided by 100, multiply that number by itself) Length (L) (Length divided by 100)
C x Q (squared) x L= FL
If you have any other questions like wyed or siamese lines. Please ask.
Leave a comment:

4" line has a friction loss coefficient of 0.20
The "equation" is the same for all hose:
FL = C * Q * Q * L
where:
C = FL coefficient for chosen hose/coupling size
Q = flow in 00s of gpm
L = hose length in 00s of feetLast edited by bobsnyder; 11142006, 01:06 PM.
Leave a comment:

Hydraulics question?
Hey, I'm in the local academy and trying to complete a hydraulics worksheet...I'm very comfortable w/ figuring out friction loss in our standard lines( 1" 3/4.....2" 1/2......and 3")....however tonite HW has a scenario involving a 4" line....Anyone know any equations which will help me complete this section?Tags: None
300x600 Ad Unit (InView)
Collapse
Upper 300x250
Collapse
Taboola
Collapse
Leader
Collapse
Leave a comment: