Flow Coefficients (CV)

The Cv listing below is in gallons per miute of flow of water at 60 degress F w/ (1) PSI pressure drop across the valve

VALVE

CV

2" 150# D711

195

2" 300# D721

205

3" 150# D711

200

3" 300# D721

375

4" 150# D711

530

4" 300# D721

570

6" 150# D711

1415

6" 300# D721

1770

8" 150# D711

2400

8" 300# D721

3000

10" 150# D711

3500

10" 300# D721

3540

12" 150# D711

4000

12" 300# D721

4700

16" 150# D711

6600

16" 300# D721

9400

20" 150# D711

15700

24" 150# D711

24000

Duraseal Torques and Turns

VALVE

OPERATOR

TORQUE

TURNS

SEATING THRUST

2" 150# D711

100 H

46

1.8

1,000

2" 300# D721

100 H

120

1.8

2,618

3" 150# D711

100 H

46

1.8

1,000

3" 300# D721

100 H

120

1.8

2,650

4" 150# D711

200 H

123

2.7

2,566

4" 300# D721

200 H

123

2.7

6,713

6" 150# D711

301 G

19

17

5,218

6" 300# D721

301 G

49

17

13,666

8" 150# D711

301 G

41

20

8,893

8" 300# D721

401 G

105

21

22,500

10" 150# D711

301 G

66

20

12,987

10" 300# D721

401 G

138

25

34,000

12" 150# D711

401 G

70

28

18,638

12" 300# D721

501 G

184

41

49,498

16" 150# D711

501 G

104

45

25,004

16" 300# D721

501 G

250

35

83,442

20" 150# D711

501 G

158

45

48,922

24" 150# D711

501 G

167

53

77,140

* Contact factory for special applications

*Torque for gear operators calculated in ft-lb. *Effort in lbs. for hand operators

©2005 • DuraSeal is a registered trademark of Franklin Valve and Supply