1/4" & 3/8" NPT Low Flow Valve Technical Data
Flow Patterns • Operating Pressures • Cv Factors • Flows
 
Flow Pattern*
Orifice Diameter
Max. Operating
Pressure
Cv Factor
De-energized        Energized
 (Power Off)         (Power On)
       Body          Stop
AC              DC
Body            Stop
       3/32
       1/8
       5/32
       3/16
       1/4
       
          250             250
          175             160
          125             110
           80               75
           50               40
            .20
            .28
            .35
            .50
            .75
            
                        1/16
                        3/32
                        1/8
          250             250
          175             150
          125             110
          
                               .07
                               .20
                               .28
       1/8            1/16
       3/16          1/16
       1/4            1/16
       1/8            3/32
       3/16          3/32
       1/4            3/32
       1/8            1/8
       3/16          1/8
       1/4            1/8
          130             110
           50               40
           40               30
          130             110
           40               35
           30               25
          100              85
           40               35
           30               20
           
            .28              .07
            .50              .07
            .75              .07
            .28              .20
            .50              .20
            .75              .20
            .28              .30
            .50              .30
            .75              .30
       1/8            1/16
       3/16          1/16
       1/4            1/16
       1/8            3/32
       3/16          3/32
       1/4            3/32
       1/8            1/8
       3/16          1/8
       1/4            1/8
          175             160
           80               75
           40               30
          140             120
           75               60
           40               35
          130             120
           60               50
           35               30
            .28              .07
            .50              .07
            .75              .07
            .28              .20
            .50              .20
            .75              .20
            .28              .30
            .50              .30
            .75              .30
       1/8            1/16
       3/16          1/16
       1/4            1/16
       1/8            3/32
       3/16          3/32
       1/4            3/32
       1/8            1/8
       3/16          1/8
       1/4            1/8
          175             160
           80               75
           40               30
          140             120
           75               60
           40               35
          130             120
           60               50
           35               30
            .28              .07
            .50              .07
            .75              .07
            .28              .20
            .50              .20
            .75              .20
            .28              .30
            .50              .30
            .75              .30
       1/8            1/16
       3/16          1/16
       1/4            1/16
       1/8            3/32
       3/16          3/32
       1/4            3/32
       1/8            1/8
       3/16          1/8
       1/4            1/8		           130             120
           70               60
           40               30
          100              85
           60               50
           30               25
          100              85
           60               50
           30               20		             .28              .07
            .50              .07
            .75              .07
            .28              .20
            .50              .20
            .75              .20
            .28              .30
            .50              .30
            .75              .30
 

   Maximum G.P.M. Water Flow
Nominal
Orifice
Diameter
10
PSI
25
PSI
50
PSI
100
PSI
150
PSI
200
PSI
250
PSI
3/32 (.094)
0.62
1.17
1.61
2.10
2.66
3.17
3.45
1/8 (.125)
0.95
1.54
2.07
2.88
3.40
3.75
•
5/32 (.156)
1.34
2.04
2.95
3.36
4.80
•
•
3/16 (.188)
1.82
2.97
3.84
6.45
•
•
•
1/4 (.250)
2.48
4.00
6.17
•
•
•
•
   
Maximum S.C.F.M. Air Flow
Nominal
Orifice
Diameter
10
PSI
25
PSI
50
PSI
100
PSI
150
PSI
200
PSI
250
PSI
3/32 (.094)
2.64
4.88
7.08
12.22
15.40
19.55
20.75
1/8 (.125)
4.60
7.97
11.65
20.10
22.60
28.00
•
5/32 (.156)
6.08
11.35
15.86
23.12
31.30
•
•
3/16 (.188)
8.15
13.17
19.22
32.40
•
•
•
1/4 (.250)
10.15
15.44
29.00
•
•
•
•

POWER USAGE
•
VOLTS
INRUSH CURRENT
HOLDING CURRENT
WATTS
OHMS
60 HERTZ
AC COILS
24
120
240
1.46
.38
.18
.62
.18
.08
9.5
12.0
10.5
5.0
115
480
•
VOLTS
AMPS
WATTS
OHMS
•
DC COILS
12
18
24
1.22
.80
.60
14.7
14.4
14.4
9.8
22.5
40.0
•