• Overview
  • Specifications

Overview

Cameron DYNATORQUE valve accessories include quarter-turn commercial aluminum worm-gear operators that are designed for use with valves, dampers, and most other quarter-turn applications requiring a self-locking mechanism. Our flexible manufacturing process enables us to offer both standard construction and custom configurations for customer-specific applications.

Standard operators are available with various mounting interface dimensions. Custom-machined gears come with bores and bolt holes for direct mounting to the valve. The standard housing material is aluminum.

Specifications

 

Model  Unit
Weight,
lbm
Max. Output
Torque, in.lbf
Gear
Ratio
Turns for
90°
Output
Bore, in
Std.
Key
Size, in2
DT2 4 2,000 30:1 7.5 1.000 0.250
DT5 7 5,000 48:1 12 1.750 0.375

Model  Standard
Mounting
Pattern
Quantity
and Size, in
Standard
Mounting
Pattern
(Bolt Circle)
Mech.
Adv.
Hand-
wheel
Size, in
Approx. Rim 
Pull, lbf
DT2 Four 3/8–16
3.250 8.10 6 82
DT5 Four 1/2–13
5.000 12.96 <10 77

Handwheels listed are recommended sizes to produce full rated torque with the rim effort listed. The formulas listed below will assist you in determining alternate handwheel sizes and rim pull requirements based on your application. 

  • To find handwheel diameter for given output torque at a given rim effort, divide the output torque by the mechanical advantage and multiply the result by 2. Then divide this result by the handwheel rim effort. 
  • To find rim effort for a given output torque with a given handwheel diameter, divide the output torque by the mechanical advantage and multiply the result by 2. Then divide this result by the handwheel diameter. Note: Handwheels are not included as part of the operator part list or price.

Bores, keyways, and mounting patterns listed are for Cameron standard stocking units. Please consult Cameron for special bore treatments, costs, and deliveries.

Standard mounting patterns on the DT2 and DT5 are four tapped holes straddling centerline at 45°.