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Flow Control -   DYNATORQUE Quarter Turn AWWA Worm Gear Operators

 
DYNATORQUETM AWWA grade actuators are constructed to the rigorous requirements of AWWA specification C504.  Actuators 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.
 
Materials 
Unit housings and covers are cast iron, worms are heat-treated carbon steel, worm wheels are cast manganese bronze, input shafts are carbon steel with yellow zinc plating, shaft and worm seals are Buna-N rubber, housing-to-cover seals are Buna-N, bushings are oil impregnated copper nickel steel alloy.

Model
Unit Wgt. Lbs.
Output Torque Lbs.-in.
Gear Ratio
Turns for 90 Deg.
Std Ouput Bore. (IN)
Std Keyway Size   (IN)
Std Mounting Patterns
Mech. Adv.
Approx
Hdwl. Size
(IN)
Approx. Rim
Pull Lbs
Torque on 2" Nut    Ft-lbs
Qty. & Size
Bolt Circle (IN)
19
8,000
30:1
7.5
1.875"
.625x.37
(4) ½-13
5.000
8.10
24
82
82
33
16,000
44:1
11
2.750"
625x.43
(4) 5/8-11
6.000
11.44
36
77
116
78
34,000
53:1
13.25
3.250"
.750
(4) ¾-10
6.496
19.00
46
78
149
105
63,000
212:1
53
3.250"
.750
(4) ¾-10
6.496
42.00
36
83
125
145
77,000
240:1
60
3.250"
.750
(8) ¾-10
10.250
43.00
46
78
149
*Indicates units with spur assists.
 
Notes:
 
1. Handwheels listed are recommended sizes to produce full rated torque with the rim effort listed. The formulas listed below will assist you in determining alternate handwheels sizes and rim pull requirements based on your application.
 
To Find: Handwheel diameter for given output torque at a given rim effort.
Divide the output torque by the mechanical advantage and multiply the result by 2.
Then divide this result by the handwheel rim effort. 
 
To Find: Rim effort for a given output torque with a given handwheel diameter.
Divide the output torque by the mechanical advantage and multiply the result by 2.
Then divide this result by the handwheel diameter. 
      
Note: Handwheels are not included as part of the operator part list or price.

 
2. Bores, keyways, and mounting patterns listed are for Cameron standard stocking units. Please consult the factory for special bore treatments, costs, and deliveries.
 
3. Standard mounting patterns on the DT2 and DT5 are (4) tapped holes straddling centerline at 45 degrees.
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