Quarter-turn worm-gear operators
Our commercial aluminum DYNATORQUE 90 worm-gear operators are for use with valves, dampers, and most other quarter-turn applications requiring a self-locking mechanism. Our flexible manufacturing process allows us to offer both standard construction and custom configurations.
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.
Model | Unit Weight lb | Max. Output Torque, lbf.in | Gear Ratio | Turns for 90° | Output Bore (in.) | Std. Keyway Size, in × in | Std. Mounting Pattern (Qty. and Size) |
Std. Mounting Pattern (Bolt Circle) |
Mech. Adv. | Handwheel Size, in | Approx. Rim Pull, lbf |
DT2 | 4 | 2,000 | 30:1 | 7.5 | 1.000 | 0.250 | (4)3/8-16 | 3.250 | 8.10 | 6 | 82 |
DT5 | 7 | 5,000 | 48:1 | 12 | 1.750 | 0.375 | (4)1/2-13 | 5.000 | 12.96 | <10 | 77 |
Notes