2
VALVES
VAL-324
For further information www.norgren.com
Cv = GPM
P
S.G.
1. Find pressure differential on horizontal axis.
2. Draw vertical line to intersect with curve; at this point draw horizontal line
to vertical axis. This is the flow for a valve with a Cv factor of 1.
3. Now, use KIP's Cv factor from the catalog listing, and multiply this Cv by
the flow from step two above. This is the flow through the specific valve
you have selected.
4. If the media is not water, multiply the flow by a correction factor.
Examples of correction factors are:
Gasoline 1.200
Ethyl Alcohol 1.120
MIL-H-5606A
Hydro-oil 1.087
Other Fluids = 1
S.G.
0
5
10
15
20
25
30
35
40
100 200 300 400 500
PRESSURE DIFFERENTIAL (PSI)
600 700 800 900 1000
FLOW
IN GPM
@ 70°F
Liquid Flow Calculations
EXAMPLE
Media: Gasoline
Pressure differential: 200
Cv factor - KIP Series 1 valve, 1/32 orifice,
2-Way Normally Closed: .035
Pressure Differential
on Chart = 200
Water flow x Cv factor = 14 x .035 = 0.490
Valve Flow with water
x Correction factor =
0.490 x 1.200 = .588 GPM
This is the flow of gasoline through a KIP PIN 141040 valve under these
conditions.
KIP Calculations
