Rotork CMA Compact modulating control valve actuator

CMA range modulating actuators deliver a series of sizes suitable for linear, part-turn and multi-turn control valve and pump applications requiring precise position control and continuous modulation.

The Rotork CMA Range provides for simple, safe and easy set-up via an internal electronic 6-segment LCD display and push button configuration.

Compact modulating actuators for precise position control and modulation applications

Accurate and repeatable position control using 4 to 20 mA signal withup to 0.1% accuracyExplosionproof to international standardsAdjustable speed controlSuitable for mounting in any orientationOptimised for linear, part-turn and multi-turn control valve and pump applicationsPermanently lubricated, maintenance-free drive trainOptional Reserve Power Pack (RPP) supercapacitors for fail to position functionalityBrushless DC motor provides reliable, accurate, continuous modulation capabilityEncoder technology provides dependable contactless feedbackLess than 1 watt standby powerSuitable for 1-phase or DC power suppliesBuilt-in interface allows for quick and simple setup via six-segment LCD display and push buttonsOptional integral Local Controls and positional displayCompatible with a wide variety of fieldbus, hardwired and analogue site systemsLinear: up to 20,017 N (4,500 lbf) seating thrustPart-turn: up to 124 Nm (1,100 lbf.in) seating torqueMulti-turn: up to 45 Nm (400 lbf.in) rated torque

Rotork is independent of valve manufacturers allowing us to work with a wide variety of valve makers and manufacturers worldwide

Compact modulating control valve actuator