• Overview
  • Specifications

Overview

Our DYNATORQUE quarter-turn commercial aluminum worm-gear operators are designed for use with valves and dampers, as well as most other quarter-turn applications requiring a self-locking mechanism. Our flexible manufacturing process allows 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. Standard housing material is aluminum.

Specifications

Model  Unit.
Wgt.
lb
Max. Output
Torque lb-in
Gear
Ratio
Turns for
90 Degrees
Output
Bore (in.)
Std.
Keyway
Size (in.)
DT2 4 2000 30:1 7.5 1.000 0.250 Sq.
DT5 7 5000 48:1 12 1.750 0.375 Sq.

Model  Std. Mounting
Pattern 
(Qty. and Size)
Std. Mounting
Pattern
(Bolt Circle)
Mech.
Adv.
HDW 
Size 
(in.)
Approx Rim 
Pull lb 
DT2 (4)3/8-16
3.250 8.10 6 82
DT5 (4)1/2-13
5.000 12.96 10> 77

*Indicates units with spur assists.

Notes:

1. 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.

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

3. Standard mounting patterns on the DT2 and DT5 are (4) tapped holes straddling centerline at 45 degrees.