Cla-Val 2100S User Manual
Page 3
Model 100S/2100S Flow Chart
(Based on normal flow through a wide open valve)
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
Functional Data
Model 100S/2100S
*
Estimated
12
1
1/2
2
3
4
6
8
10
16
2
1/2
14
24
1
1/4
1
1
2
3
4
6
8
10
12
24
2
1/2
1
1/2
14
16
1
1/4
36
30
20
18
10
20
30 40
60 80 100
200
500
1000
2000
5000
10,000 20,000 50,000
1
2
3
4
6
8
10
20
30
40
60
80
100
5
3
Angle Valve Sizes (Inches)
Globe Valve Sizes (Inches)
Pressure Drop — psi
Flow Rate gpm
(water)
1
100,000
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.)
13.3
30
32
54
85
115
200
440
770
1245 1725 2300 3130 3725 5345 7655 10150 14020
Litres/Sec. (l/s.)
3.2
7.2
7.7
13
20
28
48
106
185
299
414
552
752
894
1286 1837 2436 3200
Angle
Pattern
Gal./Min.(gpm.)
27
27
29
61
101
139
240
541
990
1575 2500* 3060* 4200*
—
—
9950*
—
—
Litres/Sec. (l/s.)
6.5
6.5
7
15
24
33
58
130
238
378
600
734
1008
—
—
2388
—
—
Equivalent
Length
of
Pipe
Globe
Pattern
Feet (ft.)
23
19
37
51
53
85
116
211
291
347
467
422
503
612
595
628
1181
2285
Meters (m.)
7.1
5.7
12
15.5
16
26
35
64
89
106
142
129
154
187
181
192
552
569
Angle
Pattern
Feet (ft.)
28
28
46
40
37
58
80
139
176
217
222*
238*
247*
—
—
372*
—
—
Meters (m.)
8.7
8.7
14
12
11
18
25
43
54
66
68
73
75
—
—
113
—
—
K
Factor
Globe Pattern
6.1
3.6
5.9
5.6
4.6
6.0
5.9
6.2
6.1
5.8
6.1
5.0
5.2
5.2
4.6
4.0
5.3
7.8
Angle Pattern
4.4
4.4
7.1
4.4
3.3
4.1
4.1
4.1
3.7
3.6
2.9
2.8
2.6
—
—
2.4
—
—
Liquid Displaced from
Cover Chamber
When Valve Opens
Fl. Oz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
U.S. Gal.
.02
.02
.02
.03
.04
.08
.17
.53
1.26
2.51
4.0
6.5
9.6
11
12
29
42
90
ml
20.7 75.7 75.7 121
163
303
643
—
—
—
—
—
—
—
—
—
—
—
Litres
—
—
—
—
—
—
—
2.0
4.8
9.5
15.1
24.6
36.2
41.6
45.4 109.8
197
340