AWWA-Grade DYNATORQUE 90
Quarter-turn worm-gear operators
DYNATORQUE 90 worm-gear operators can be constructed to the rigorous requirements of AWWA Spec C504. Worm-gear operators in this category are totally enclosed, weatherproof, and permanently lubricated. These units are suitable for use in above ground, buried and submerged service applications with handwheel, chainwheel, or operating nuts.
Standard materials are cast gray or ductile iron, but we also offer a varied selection of alternate materials to meet your application requirements.
Specifications
| Model | Unit Weight, lbm | Max. Output Torque, lbf.in | Gear Ratio | Turns for 90° | Std. Output Bore, in | 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 | Torque on 2-in Nut, lbf.ft |
| DT8 | 19 | 8,000 | 30:1 | 7.5 | 1.750 | 0.375 | (4)1/2-13 | 5.000 | 8.10 | 24 | 82 | 82 |
| DT21W | 33 | 21,000 | 60:1 | 15 | 2.500 | 0.500 | (4)5/8-11 | 5.512 | 15 | 36 | 78 | 117 |
| DT36W | 78 | 34,000 | 53:1 | 13.25 | 3.250 | 0.750 | (4)3/4-10 | 6.496 | 19 | 46 | 78 | 149 |
| DT50W† | 105 | 50,000 | 212:1 | 53 | 3.250 | 0.750 | (4)3/4-10 | 6.496 | 42 | 36 | 83 | 125 |
| DT90W† | 145 | 77,000 | 240:1 | 60 | 3.250 | 0.750 | (8)3/4-10 | 10.250 | 43 | 46 | 78 | 149 |
† Indicates units with spur assist.
Notes
- Handwheels listed are recommended sizes to produce full rated torque with the rim effort listed.
- Bore, keyways, and mounting patterns listed are for Cameron standards.
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