Mr. TúCompact modulating control valve actuators
CMA range modulating actuators deliver a series of sizes suitable for linear, quarter-turn and rotary control valve and pump applications requiring precise position control and continuous modulation.
Configuration
The Rotork CMA Range provides for simple, safe and easy set-up via an internal electronic 6-segment LCD display and push button configuration.
Features
- Powered by single-phase or direct current supplies
- Linear, quarter-turn and rotary drive action
- Optional Local Controls with LCD Display (linear, quarter-turn, rotary)
- Local Controls with LCD Display Plus Supercapacitor Reserve Power Pack (RPP) (linear and quarter-turn only) units available
- Permanently lubricated and maintenance free drive train
- Capable of being mounted in any orientation
- Accurate and repeatable position control
- 4 to 20 mA loop powered, feedback signal
- Digital communication options including HART®, Foundation FieldbusTM, Profibus®, Pakscan, RIRO and Modbus® available
- Field selectable adjustments for:
- Deadband
- Zero and span
- Command signal type
- Standard or reverse acting
- Manual-auto operation
- Output shaft position on loss of signal
- All CMA units have the ability to adjust their speed 50-100% of operation
- Shut off torque/thrust capability (60 -150% of rated) for required tight shut off at the valve in the CLOSE position
- Wide standard ambient temperature range:
EP Product: -4 to +149 °F (-20 to 65 °C)
WT Product: -22 to +158 °F (-30 to 70 °C) - Optional low temperature trim
- Manual override standard
- Electronic thrust/torque limiting
- Two standard adjustable position switches
- 24 VDC option
- Pakscan, HART®, Profibus®, Modbus, DeviceNet and Foundation Fieldbus® available
Optional hard wired RIRO (Remote In Remote Out)
Rotork is independent of valve manufacturers allowing us to work with a wide variety of valve makers and manufacturers worldwide.
CMA Range Benefits
- Available in linear, quarter-turn and multi-turn versions and a range of five compact sizes
- Economical operation of numerous types of control valve, damper and pump stroke adjuster applications
- Maintenance-free drive train
- Accurate and repeatable positional control
- Resolution is 0.20% on linear and quarter-turn applications and 2 degrees on the multi-turn configuration
- Continuous modulating performance
CMA Variants:
CMA Resources:
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