4
2600 Emrick Blv
d., B
et
hle
he
m, P
A 18020-8010 www
.W
ar
re
nC
on
tr
ols
.c
om
Te
l: 800-922-0085 or 610-317-0800 F
ax: 610-317-2989
Flo
w Coefficients (Cv)
V
ersus
Tr
av
el
V
alve
Trim
%T
ravel
Size (IN)
Style
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
2-1/2 EQ%
65.0
55.6
43.8
29.8
15.4
8.07
5.67
4.11
2.81
1.49
3
EQ%
90.0
83.6
75.1
63.8
49.2
31.6
12.9
4.75
3.37
1.99
4
EQ%
170
159
143
122
95.1
62.9
31.3
15.6
9.89
4.11
5
EQ%
280
258
230
194
150
102
54.7
23.1
14.0
6.40
6
EQ%
360
333
298
255
203
144
83.6
34.1
14.6
7.10
8
EQ%
450
386
318
250
186
130
81.9
44.6
18.3
2.92
10
EQ%
650
556
457
359
267
186
117
64.1
26.5
4.87
V
alve
Trim
%T
ravel
Size (IN)
Style
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
2-1/2
EQ%
70.0
59.5
45.9
30.2
15.7
8.60
6.36
4.12
3.44
2.75
3
EQ%
100
87.6
71.2
50.8
28.7
12.2
8.54
6.58
4.60
3.27
4
EQ%
200
180
155
126
91.0
53.3
17.8
8.36
6.07
4.54
5
EQ%
260
239
212
178
138
100
74.3
53.8
32.2
9.86
6
EQ%
350
323
286
238
178
113
63.2
44.8
27.5
9.83
8
EQ%
680
619
557
475
370
246
118
43.9
29.0
14.2
10
EQ%
960
886
796
689
574
474
383
285
181
72.3
V
alve
V
alve
V
alve
V
alve
V
alve
2920
Flow Coefficients (Cv)
Two-W
ay Single Seat Unbalanced V
alve
2922
Flow Coefficients (Cv)
Two-W
ay Double Seat Balanced V
alve
2923
Flow Coefficients (Cv)
Two-W
ay Cylinder Balanced V
alve
2930
Flow Coefficients (Cv)
Three-W
ay Mixing V
alve
2932
Flow Coefficients (Cv)
Three-W
ay Diverting/Mixing V
alve
2-
W
A
Y
VA
LVE
TY
PICA
L FLOW
CURVE
0
10
20
30
40
50
60
70
80
90
100
% TRA
V
E
L
% CV
100
90
80
70
60
50
40
30
20
10
0
TY
PICA
L FLOW
CURVE
U
PPER
LOW
E
R
COM
B
INE
D
2930
0
10
20
30
40
50
60
70
80
90
100
110
100
90
80
70
60
50
40
30
20
10
0
% TRA
V
E
L
% CV
TY
PICA
L FLOW
CURVE
2932
0
10
20
30
40
50
60
70
80
90
100
110
120
100
90
80
70
60
50
40
30
20
10
0
% CV
U
PPER
LOW
E
R
COM
B
INE
D
2-Way Valves
(Control of Liquids, Gases, and Steam)
3-Way Valves
(Control of Liquids)
V
alve
Trim
%T
ravel
Size (IN)
Style
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
2-1/2
EQ%
65.0
55.6
43.8
29.8
15.4
8.07
5.67
4.11
2.81
1.49
3
EQ%
90.0
83.6
75.1
63.8
49.2
31.6
12.9
4.75
3.37
1.99
4
EQ%
170
159
143
122
95.1
62.9
31.3
15.6
9.89
4.11
5
EQ%
280
258
230
194
150
102
54.7
23.1
14.0
6.40
6
EQ%
360
333
298
255
203
144
83.6
34.1
14.6
7.10
V
alve
Trim
Travel
Size (IN)
Style
100%
2-1/2
LINEAR
69
3
LINEAR
86
4
LINEAR
156
5
LINEAR
270
6
LINEAR
347
8
LINEAR
450
V
alve
Trim
Travel 100%
Size (IN)
Style
Upper
Lower
2-1/2
LINEAR
68
75
3
LINEAR
85
95
4
LINEAR
160
180
5
LINEAR
195
220
6
LINEAR
270
300
8
LINEAR
425
510
5
PS 2900 C 0305
For additional applic
at
ion
s, and/or pr
oduc
ts c
all: 800-922-0085 or vi
sit
: www
.W
ar
re
nC
on
tr
ols
.c
om
Steam
Temp.
Temp.
Sensible
Latent
Total
Pressure
°F
°C
Heat
Heat
Heat
PSIG
BTU/Lb.
BTU/Lb.
BTU/Lb.
0
212
100
180
971
1151
10
239
115
207
952
1159
25
266
130
236
934
1170
50
297
147
267
912
1179
75
320
160
290
896
1186
100
338
170
309
881
1190
125
353
178
325
868
1193
150
365
185
339
858
1197
200
387
197
362
838
1200
250
406
208
381
821
1202
300
422
217
399
805
1204
400
448
231
438
778
1216
500
470
243
453
752
1205
600
489
254
475
729
1204
Steam T
able
Load Sizing Calculations
Rectangular T
ank Capacity in Gallons
Height x Width x Length (inches)
Gallons =
230
or
Gallons =
H x W x L (Ft.) x 7.5
Circular T
ank Storage Capacity in Gallons
Storage =
6D
2
x L (Gallons)
Where:
D = T
ank Diameter in Feet
L = Length in Feet
Heating W
ater with Steam
Quick Method
GPM
Lbs./Hr
. =
x
Δ
T
2
Accurate Method
GPM x 500 x
Δ
T
Lbs./Hr
. =
h
fg
Heating or Cooling W
ater with W
ater
°F water
2
temp. rise or drop
GPM
1
=
GPM
2
x
°F water
1
temp. rise or drop
Heating or Cooling W
ater
BTU / Hr
.
GPM =
(°F water temp. rise or drop ) x 500
Heating Oil with Steam
GPM
Lbs./Hr
. =
x (°F oil temp. rise)
4
Heating Air with W
ater
CFM x (°F air temp. rise)
GPM = 2.16 x
1000 x (°F water temp. drop)
Heating Liquids with Steam
GPM x 60 x Cp x W
Lbs./Hr
. =
x
Δ
T
h
fg
Heating Liquids in Steam Jacketed Kettles
GPM x Cp x S x 8.33
Lbs./Hr
. =
x
Δ
T
h
fg
x t
General Liquid Heating
W x Cp
Lbs./Hr
. =
x
Δ
T
h
fg
x t
Heating Air with Steam
CFM
Lbs./Hr
. =
x
Δ
T
900
Glossar
y of T
erms
t =
T
ime in Hours
Cp =
Specific Heat of Liquid
S =
Specific Gravity of Fluid
W =
W
eight in Lbs.
Δ
T =
Temperature Rise or Fall in °F
h
fg
=
Latent Heat of Steam
Conversion Factors
1 Lb. Steam / Hr
. =
1000 BTU / Hr
.
1 Cubic Meter =
264 U.S. Gallons
1 Cubic Foot W
ater =
62.4 Lbs.
1 PSI =
2.04 Inches of Mer
cur
y
1 PSI =
2.3 Feet of W
ater
1 PSI =
27.7 Inches of W
ater
1 U.S. Gallon W
ater =
231 Cubic Inches
1 U.S. Gallon W
ater =
8.33 Lbs.
Sizing R
efer
ence
Содержание PVG WW
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