AWWA-Grade DYNATORQUE 90 Operators | SLB

AWWA-Grade DYNATORQUE 90

Quarter-turn worm-gear operators

close up of multiple gears

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

ModelUnit Weight, lbmMax. Output Torque, lbf.inGear RatioTurns for 90°Std. Output Bore, inStd. Key Size, in × inStd. Mounting Pattern (Qty. and Size)Std. Mounting Pattern (Bolt Circle)Mech. Adv.Handwheel Size, inApprox. Rim Pull, lbfTorque on 2-in Nut, lbf.ft
Model DT8 Unit Weight, lbm 19 Max. Output Torque, lbf.in 8,000 Gear Ratio 30:1 Turns for 90° 7.5 Std. Output Bore, in 1.750 Std. Key Size, in × in 0.375 Std. Mounting Pattern (Qty. and Size) (4)1/2-13 Std. Mounting Pattern (Bolt Circle) 5.000 Mech. Adv. 8.10 Handwheel Size, in 24 Approx. Rim Pull, lbf 82 Torque on 2-in Nut, lbf.ft 82
Model DT21W Unit Weight, lbm 33 Max. Output Torque, lbf.in 21,000 Gear Ratio 60:1 Turns for 90° 15 Std. Output Bore, in 2.500 Std. Key Size, in × in 0.500 Std. Mounting Pattern (Qty. and Size) (4)5/8-11 Std. Mounting Pattern (Bolt Circle) 5.512 Mech. Adv. 15 Handwheel Size, in 36 Approx. Rim Pull, lbf 78 Torque on 2-in Nut, lbf.ft 117
Model DT36W Unit Weight, lbm 78 Max. Output Torque, lbf.in 34,000 Gear Ratio 53:1 Turns for 90° 13.25 Std. Output Bore, in 3.250 Std. Key Size, in × in 0.750 Std. Mounting Pattern (Qty. and Size) (4)3/4-10 Std. Mounting Pattern (Bolt Circle) 6.496 Mech. Adv. 19 Handwheel Size, in 46 Approx. Rim Pull, lbf 78 Torque on 2-in Nut, lbf.ft 149
Model DT50W Unit Weight, lbm 105 Max. Output Torque, lbf.in 50,000 Gear Ratio 212:1 Turns for 90° 53 Std. Output Bore, in 3.250 Std. Key Size, in × in 0.750 Std. Mounting Pattern (Qty. and Size) (4)3/4-10 Std. Mounting Pattern (Bolt Circle) 6.496 Mech. Adv. 42 Handwheel Size, in 36 Approx. Rim Pull, lbf 83 Torque on 2-in Nut, lbf.ft 125
Model DT90W Unit Weight, lbm 145 Max. Output Torque, lbf.in 77,000 Gear Ratio 240:1 Turns for 90° 60 Std. Output Bore, in 3.250 Std. Key Size, in × in 0.750 Std. Mounting Pattern (Qty. and Size) (8)3/4-10 Std. Mounting Pattern (Bolt Circle) 10.250 Mech. Adv. 43 Handwheel Size, in 46 Approx. Rim Pull, lbf 78 Torque on 2-in Nut, lbf.ft 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.