Hydraulic Formulas Flashcards
1
Q
Discharge (w/nozzle)
A
30 x Diameter squared x square root of Pressure
2
Q
Discharge (Open Butt)
A
27 x Diameter squared x square root of Pressure
3
Q
Friction Loss (>100 GPM)
A
2 x Quantity squared + Quantity
4
Q
Friction Loss (<99 GPM)
A
2 x Quantity squared + 1/2 x Quantity
5
Q
Head
A
H = 2.3P
6
Q
Pressure
A
P = .434H
7
Q
Back Pressure
A
BP = .434H
8
Q
Sprinkler
A
1/2P + 15
9
Q
Gallons in hose
A
V= 0.04078 x Diameter squared x length
10
Q
Capacity of cylindrical tank
A
Q= Diameter squared x 5.875 x height
