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B-6
Catalog Number Explanation – Drive Selection
Table B-5 – Typical Application Load Torque Profiles *
Application
Agitators
Liquid
Slurry
Blowers ( Centrifugal)
Damper Closed
Damper Open
Chipper ( Wood) Starting Empty
Compressors
Axial-vane, Loaded
Reciprocating, start unloaded
Conveyors
Belt type, loaded
Drag type
Screw type, loaded
Extruders (Rubber or Plastic)
Fans ( Centrifugal, ambient)
Damper closed
Damper open
Fans ( Centrifugal, hot gases)
Damper closed
Damper open
Fans ( Propeller, axial flow)
Kilns ( Rotary, loaded)
Mixers
Chemical
Liquid
Slurry
Solids
Pulper
Pumps
Centrifugal, Discharge open
Oil field Flywheel
Propeller
Fan Pump
Reciprocating / Positive Displacement
Screw type, started dry
Screw type, primed, discharge open
Slurry handling, discharge open
Turbine, Centrifugal, deep-well
Vane-type, positive displacement
Separators, air ( fan type )
* NOTE: PowerFlex 7000 "A" Frame suitable only for normal duty service rating.
7000A-UM151E-EN-P - October 2018
Load Torque as Percent
Load
Torque
of Full-Load Drive Torque
Profile
Break-away Accelerating Peak Running
CT
100
CT
150
VT
30
VT
40
CT
50
VT
40
CT
100
CT
150
CT
175
CT
200
CT
150
VT
25
VT
25
VT
25
VT
25
VT
40
CT
250
CT
175
CT
100
CT
150
CT
175
VT
40
VT
40
CT
150
VT
40
VT
40
CT
175
VT
75
CT
150
CT
150
VT
50
CT
150
VT
40
Required Drive
100
100
100
100
50
40
110
100
40
200
Contact Factory
100
100
50
100
130
100
150
100
Contact Factory
100
100
Contact Factory
150
100
Contact Factory
60
50
110
100
60
100
200
175
Contact Factory
110
100
125
125
Contact Factory
75
100
Contact Factory
100
100
125
100
125
175
Contact Factory
100
150
Contact Factory
100
100
200
200
Contact Factory
100
100
100
100
30
175
Contact Factory
30
100
100
100
100
100
100
100
150
175
Contact Factory
100
100
Tachometer
Service
Required for Extra
Duty Rating
Starting Torque?
Heavy
Yes
Heavy
Yes
Normal
No
Normal
No
No
Normal
No
Normal
Yes
Heavy
Yes
Yes
Yes
Yes
Normal
No
Normal
No
Normal
No
No
Normal
No
Yes
Yes
Heavy
Yes
Heavy
Yes
Yes
No
Normal
No
Yes
Normal
No
Normal
No
Yes
Normal
No
Heavy
Yes
Heavy
Yes
Normal
No
Yes
Normal
No
7000 "A" Frame
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