The actual amount of torque required to operate a valve is dependent upon many variables, such as line pressure, temperature, type of fluid, frequency of operation.
The following table is based on average breakaway torque requirements for a valve handling a clean, particle-free liquid such as water. The following charts include a safety allowance for service conditions. The torque figures listed should be further adjusted for special service conditions. For fluids with high solids or abrasive content, consult factory for recommendations.
Size |
Torque (ft. lbs.) |
1/2 |
10 |
3/4 |
10 |
1 |
10 |
1-1/2 |
20 |
2 |
35 |
2-1/2 |
48 |
3 |
62 |
4 |
130 |
6 |
260 |
8 |
360 |
10 |
535 |
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