Our DYNATORQUE DT quarter-turn severe-service stainless steel gear operators are designed for use with valves and dampers as well as most other quarter-turn applications requiring a self-locking mechanism.
For aggressive environmental conditions or corrosive applications, these operators have external components constructed of cast CF-8M stainless steel. They are completely sealed and are ideal for applications such as brewing, food processing, leaching operations, offshore platforms, and pulp and paper plants.
These gear operators feature stainless steel internal parts. DT21 is suitable for use with chainwheel operators. DT3 and DT7 are not suitable for chainwheel operation. (These actuators are not recommended for use with handwheels over 18-in diameter and are not recommended for use with any of our chainwheel options.
Materials unit housings, covers, indicators, gears, and bolting hardware are 300 series stainless steel. Optional seal materials and grease are available upon request.
| Model | Unit Weight, lbm | Max. Output Torque, lbf.in | Gear Ratio | Turns for 90° | Std. Output Bore | Std. Key Size, in × in | Std. Mounting Pattern (Qty. and Size) | Std. Mounting Pattern (Bolt Circle) | Mech. Adv. | Handwheel Size, in | Approx. Rim Pull, lbf |
| DT3 | 8 | 4500 | 30:1 | 7.5 | 1.000 | 0.250 | (4)3/8-16 | 3.250 | 8.10 | 14 | 80 |
| DT7 | 14 | 10,000 | 48:1 | 12 | 1.750 | 0.375 | (4)1/2-13 | 5.000 | 12.96 | 18 | 86 |
| DT21 | 33 | 26,000 | 60:1 | 15 | 2.500 | 0.500 | (4)5/8-11 | 5.512 | 13.20 | 36 | 109 |
Notes
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