Pacific® CSV Cast Steel Gate Valves 

Product Technical Info ­ Valve Torque ­ Cv

Gate Valves ­ Cv

Size 

Class 150 Class 300

Cv Kv Cv Kv

2 305 263.8 305 263.8

2.5 490 423.9 490 423.9

3 710 614.2 710 614.2

4 1300 1124.6 1300 1124.6

5 2090 1808.0 2090 1808.0

6 3110 2690.3 3110 2690.3

8 5720 4948.1 5720 4948.1

10 8935 7729.2 8935 7729.2

12 13350 11548.4 13350 11548.4

Gate Valves ­ Torque

Class SizeDifferentialPressure(psi)

StemDiameter(in.)

ThreadLead(in.)

ThreadPitch

Radius (in.)

StemTravel(in.)

Numberof Turns

HandwheelDiameter(in.)

Torque(ft­lbs.)

150 2 325 0.75 0.17 0.33 2.0 12.0 8 6

150 2.5 325 0.75 0.17 0.33 2.9 17.4 8 7

150 3 325 0.88 0.17 0.40 2.3 14.0 9 10

150 4 325 1.00 0.20 0.45 3.7 18.4 10 18

150 6 325 1.13 0.20 0.51 6.4 32.0 14 35

150 8 325 1.25 0.20 0.58 8.3 41.5 14 61

150 10 325 1.38 0.25 0.63 10.5 42.0 16 103

150 12 325 1.50 0.25 0.69 12.7 50.8 18 154

300 2 825 0.75 0.17 0.33 3.0 18.0 8 11

300 2.5 825 0.75 0.17 0.33 3.0 18.0 8 13

300 3 825 0.88 0.17 0.40 3.0 18.0 9 20

300 4 825 1.00 0.20 0.45 4.5 22.5 10 37

300 6 825 1.25 0.20 0.58 6.0 30.0 14 89

300 8 825 1.38 0.20 0.64 8.3 41.5 16 159

300 10 825 1.50 0.25 0.69 10.5 42.0 18 268

300 12 825 1.63 0.25 0.75 12.7 50.8 20 402