Keeping the World Flowing
5
2.0 General Information
2.3 General Actuator Description
Building on Rotork’s historical success with innovative
technology, the CMA offers a highly accurate and responsive
method of automating control valves and pumps without the
complexity and cost of a pneumatic supply.
With a minimum resolution of 0.1% of full stroke.
CMA range actuators are self contained, purpose designed
and built for continuous remote electrical operation of
control valves.
CMA range of actuators delivers a series of sizes suitable
for almost all linear, quarter-turn and rotary control valve
and pump applications requiring exact position control and
continuous modulation.
Refer to Section 3 – Approvals for further detail concerning
approved actuators.
2.3.1 CML - Linear
The CML range of actuators are high precision linear
actuators capable of producing a modulating thrust from 100
to 3000 pounds force (13.35 kN) depending on model size.
NOTE: Thrust and Speed are dependent on frame size.
See PUB094-001 for full details.
The actuator comprises:
•
Absolute encoder
•
LCD user interface
•
DC brushless electric motor
•
Simple, maintenance free geartrain
•
Motor controller with travel and thrust adjustment
•
Manual overide
•
Hazardous area certification meeting
international and national requirements
•
Local controls & external display
•
Options
• Reserve Power Pack (RPP)
• Bus system option PCB
• Remote Input Relay Output
RIRO option PCB card
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