Technical DataAutomation


Flow Coefficients (CV) and Torque & Turns Duraseal ANSI 300/600 D700 & D600 Series
Flow Coefficients (CV)
VALVE
Cv
Kv

2” 300# D721

205

177

2” 600# D741

290

251

3” 300# D721

210

182

3” 600# D741

300

260

4” 300# D721

570

493

4” 600# D741

850

735

6” 300# D721

1770

1531

6” 600# D741

2265

1959

8” 300# D721

3000

2595

8” 600# D741

3600

3114

10” 300# D721

3540

3062

10” 600# D741

5100

4412

12” 300# D721

4700

4066

12” 600# D741

9200

7958

14” 300# D721

9200

7958

14” 600# D741

9200

7958

16” 300# D721

12000

10380

16” 600# D741

12000

10380

18” 300# D721

12000

10380

18” 600# D741

12000

10380


Cv US gallons per minute of flow with 60 degrees F water at 1 PSI pressure drop in the fully open position
Kv is cubic meters Per hours of flow with 16 degrees C water at 1 Bar pressure drop in the fully open position





  • Duraseal Torque & Turns
    VALVE
    OPERATOR
    TORQUE
    FT. LBS.
    TORQUE
    M/KG
    TURNS

    2” 300# D721

    100 HWO

    30

    4.2

    1.8

    2” 300# D721

    101 Gear

    6

    0.83

    17

    2” 300# D621

    201 Gear

    14

    1.9

    12-14

    2” 600# D741

    201 Gear

    19

    2.6

    13

    2” 600# D641

    201 Gear

    28

    3.8

    12-14

    3” 300# D721

    100 HWO

    30

    4.1

    1.8

    3” 300# D721

    101 Gear

    6

    0.83

    17

    3” 300# D621

    201 Gear

    14

    1.9

    12-14

    3” 600# D741

    201 Gear

    28

    3.9

    16

    3” 600# D641

    201 Gear

    28

    3.9

    12-14

    4” 300# D721

    200 HWO

    25

    3.5

    2.7

    4” 300# D721

    201 Gear

    45

    6.2

    20

    4” 300# D621

    301 Gear

    60

    8.2

    18-22

    4” 600# D741

    301 Gear

    38

    5.3

    18

    4” 600# D641

    301 Gear

    117

    16.1

    29

    6” 300# D721

    301 Gear

    60

    8.3

    18.5

    6” 300# D621

    401 Gear

    90

    12.4

    19-23

    6” 600# D741

    401 Gear

    117

    16.2

    29

    6” 600# D641

    401 Gear

    125

    17.2

    19-23

    8” 300# D721

    401 Gear

    105

    14.5

    21

    8” 300# D621

    401 Gear

    200

    27.6

    23-29

    8” 600# D741

    401 Gear

    125

    17.3

    21

    8” 600# D641

    501 Gear

    185

    25.6

    32-40

    10” 300# D721

    401 Gear

    138

    19.1

    25

    10” 300# D621

    401 Gear

    219

    30.2

    33-35

    10” 600# D741

    501 Gear

    185

    25.6

    46

    10” 600# D641

    501 Gear

    220

    30.4

    33-35

    12” 300# D721

    401 Gear

    184

    25.4

    41

    12” 300# D621

    401 Gear

    184

    25.4

    33-55

    12” 600# D741

    501 Gear

    219

    30.3

    46

    12” 600# D641

    501 Gear

    390

    53.9

    67-71

    14” 300# D721

    401 Gear

    130

    17.9

    33-35

    14” 600# D741

    501 Gear

    220

    30.4

    33-35

    16” 300# D721

    501 Gear

    225

    31.1

    58-71

    16” 600# D741

    601 Gear

    390

    53.9

    67-71

    18” 300# D721

    501 Gear

    200

    27.6

    33-35

    18” 600# D741

    601 Gear

    390

    53.9

    67-71