COVER
PIPE PLUG
COVER BEARING
SPRING
STEM NUT
DIAPHRAGM WASHER
DISC RETAINER
BODY
*
SPACER WASHERS
PIPE PLUG
SEAT O-RING
STUD
8" and Larger
*
DIAPHRAGM
*
DISC
*
Repair Parts
PIPE PLUG
HEX NUT
8" and Larger
KO
DISC GUIDE
STEM
(Globe
Shown)
KO
SEAT
Seat Screw
8" and Larger
Cover Bolt
6" and Smaller
For assistance in selecting appropriate valve options or valves manufactured with special design requirements, please contact our Regional Sales Office or Factory.
Model 100-01KO
Functional Data
K =
894d
4
C
2
v
L =
K
12 f
K Factor
(Resistance Coefficient)
The Value of K is calculated from the formula:
(U.S. system units)
Equivalent Length of Pipe
Equivalent lengths of pipe (L) are determined from the formula:
(U.S. system units)
Fluid Velocity
Fluid velocity can be calculated from the following formula:
(U.S. system units)
d
V =
.4085 Q
2
d
C
V
Factor
Formulas for computing C Factor, Flow (Q) and Pressure Drop
V
( P):
C
V
=
Q
P
C
V
=
Q
P
C
V
=
Q
P
2
V
Where:
U.S. (gpm) @ 1 psi differential at 60 F water
(l/s) @ 1 bar (14.5 PSIG) differential
or
at 15 C water
inside pipe diameter of Schedule 40 Steel Pipe (inches)
friction factor for clean, new Schedule 40 pipe
(dimensionless) (from Cameron Hydraulic Data,
18th Edition, P 3-119)
Resistance Coefficient (calculated)
Equivalent Length of Pipe (feet)
Flow Rate in U.S. (gpm) or (l/s)
Fluid Velocity (feet per second) or (meters per second)
Pressure Drop in (psi) or (bar)
=
=
=
=
=
=
=
=
=
P
V
Q
L
K
f
d
C
Notes: On Operating Differential
1. For atmospheric discharge, the
maximum inlet pressure cannot
exceed 150 psi.
2. For pressure differentials greater
than 300 psi the maximum flow
velocity should not exceed 18 ft/sec.
3. Flow velocities greater than 25 ft/sec
are not recommended.
4. Recommended minimum flow velocity
is 1 ft/sec.
5. Consult factory for conditions
exceeding these recommendations.
100G-01KO ANT
I
-CAV
I
TAT
I
ON VALVE CURVES
100
10
1000
10000
FLOW RATE (gpm)
10
100
PRESSURE DROP
(psi)
400
1
300
SOL
I
D L
I
NE
I
S FULL OPEN FLOW CURVES FOR 18 FT/SEC CONT
I
NUOUS DUTY APPL
I
CAT
I
ONS
DASHED L
I
NE
I
S FULL OPEN FLOW CURVE FOR 25 FT/SEC
I
NTERM
I
TTENT DUTY APPL
I
CAT
I
ONS
100000
3"
4"
6"
8"
10"
12"
2"
24"
2
1/2
"
1
1/2
"
16"
14"
24"
20"
36"
30"
18"
1
1/4
"
1"
SELECTION GUIDELINE FOR KO ANTI-CAVITATION VALVES
400
350
300
200
150
100
50
0
0
10
20
30
40
60
50
70
80
OUTLET PRESSURE (psi)
250
INLET
PRESSURE (psi)
Cavitation
Zone
90
100
Valve Size
Inches
1
1
1
⁄
4
1
1
⁄
2
2
2
1
⁄
2
3
4
6
8
10
12
14
16
18
20
24
30
36
mm.
25
32
40
50
65
80
100
150
200
250
300
350
400
450
500
600
750
900
C
V
Factor
Globe
Pattern
Gal./Min. (gpm.)
14
14
14
25
37
52
90
218
362
660
810 1100 1200 1550 1950 3900 6100 9150
Litres/Sec. (l/s.)
3.4
3.4
3.4
6.0
8.9
12.5 21.6
52
87
159
194
264
288
360
469
938 1466 2199
Angle
Pattern
Gal./Min. (gpm.)
15
15
15
26
39
55
95
232
388
479
790 1075 1175
—
—
3775
—
—
Litres/Sec. (l/s.)
3.6
3.6
3.6
6.2
9.4
13.2 22.8
56
93
115
190
258
282
—
—
906
—
—
Equivalent
Length of
Pipe
Globe
Pattern
Feet (ft.)
196
196
196
237
277
416
572
858 1315 2444 2118 1937 3022 3537 4199 4532 3897 3954
Meters (m.)
60
60
60
72
84
127
174
262
401
745
646
590
921 1078 1280 1381 1188 1205
Angle
Pattern
Feet (ft.)
171
171
171
219
250
372
514
757 1145 2133 2226 2021 3152
—
—
2583
—
—
Meters (m.)
52
52
52
67
76
113
157
231
349
650
678
616
961
—
—
787
—
—
K Factor
Globe Pattern
30.6 30.6 30.6 26.1 24.3 29.3 29.0 25.5 27.7 41.0 27.7 22.8 31.4 30.2 29.5 15.4 17.6 15.1
Angle Pattern
26.7 26.7 26.7 24.1 21.8 26.2 26.0 22.5 24.1 35.8 29.1 23.8 32.8
—
—
16.4
—
—
Liquid Displaced from
Cover Chamber When
Valve Opens
U.S. Gal.
0.2
0.2
0.2
.03
.04
.08
.17
.53
1.26
2.5
4.0
6.5
9.6
11
12
29
65
90
Litres
0.8
0.8
0.8
.12
.16
.30
.64
2.0
4.8
9.5
15.1 25.6 36.2 41.6 45.4
110
246
340