AWWA-Grade DYNATORQUE 90 Operators | Schlumberger Products

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.

DYNATORQUE Quarter Turn AWWA Worm Gear Operators

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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