ACK21-01A
ontracactuators.com
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1. Valve Protection
Ontrac actuator moves to its end position at a fixed low speed, therefore over-torque is avoided due to the low
kinetic energy of motor and gears.
2. High torque when it matters
Moderate blockages pose no problem for Ontrac. By running at low speed with high torque, the actuator is
able to overcome valve blockage without risk of valve damage.
3. Planning flexibility
Sometimes during the planning stage, it is good to have a little free play in terms of output speed and torque -
some things look different on site. adjustable speed & torque offers many possibilities for process optimization
at a later stage.
4. Reduced spare-parts stock
The ability to configurable speed and cut-off torque means that the whole actuator range can be covered by a
small number of variants. This simplifies stock keeping of spare actuators and Components.
5. Optimum position control
The positioner integrated in the Ontrac actuator utilizes the different speed control capability of the frequency
converter: this means that large position changes result in high-speed correction, whereas small deviations
are adjusted more slowly.
6. Automatic phase correction
The integrated rectifier works independently of the supply phase sequence and automatically corrects phase
variation.
