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% accuracy
• Explosionproof to international standards
• Adjustable speed control
• Suitable for mounting in any orientation
• Optimised for linear, part-turn and multi-turn control valve and pump applications
• Permanently lubricated, maintenance-free drive train
• Optional Reserve Power Pack (RPP) supercapacitors for fail to position functionality
• Brushless DC motor provides reliable, accurate, continuous modulation capability
• Encoder technology provides dependable contactless feedback
• Less than 1 watt standby power
• Suitable for 1-phase or DC power supplies
• Built-in interface allows for quick and simple setup via six-segment LCD display and push buttons
• Optional integral Local Controls and positional display
• Compatible with a wide variety of fieldbus, hardwired and analogue site systems
• Linear: up to 20,017 N (4,500 lbf) seating thrust
• Part-turn: up to 124 Nm (1,100 lbf.in) seating torque
• Multi-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.

Rotork has the experience, know-how and product range to deliver virtually any actuation solution. Rotork products have long been chosen for their reliability and performance. Whilst these proven characteristics are certain under normal operating conditions, there are conditions that not even a standard Rotork actuator can operate in fire.

Fire and explosion is a major cause of concern to refinery, gas processing, petrochemical and offshore installations. Danger and damage from fire can be minimised by the efficient and effective protection of the systems, which control the plant.

For this reason Rotork can recommend a range of fire proofing options for it’s actuators, ranging from fixed passive protection through to full fire retardant enclosures.

IQ3 Pro Features

• Continuous position tracking at all times, even without power
• On power loss, graphical interface, remote indication and data logger are maintained and accessible
• Oil bath lubrication provides extended life and the ability to mount in any orientation
• Water ingress protection, not reliant on terminal cover or cable gland sealing – double-sealed to IP66/68 7 m for 72 hours
• Increased protection by using independent torque and position sensing
• Remote operation, configuration and commissioning up to 100 m from actuator, with Remote Hand Station
• Easy installation and maintenance using detachable thrust bases
• Explosionproof to international standards
• Safe, motor-independent, handwheel operation available at all times
• Real-time valve and actuator performance information viewable on the dual-stacked screen
• Control and commissioning via Rotork app, Bluetooth® Setting Tool Pro (BTST) or local control knobs
• Field upgradeable and configurable control and indication options
• Rapid and secure commissioning & configuration even without power
• Detailed trend analysis and diagnostic data available via intelligent asset management
• Wide range of adjustable speeds available
• Closed-loop control capability
• Backwards compatibility and upgrade services available

• IP rating Type 4X/Type 6P/IP66/IP68 (7 metres for 72 hours)
• FM, CSA, CCC/NEPSI and ATEX explosionproof certified
• Wide ambient temperature range of -40 to +80 °C (-40 to +176 °F)
• Two power options: AC and DC
• Pressure ranges of 0-0.5 psig to 0-3,000 psig
• Linear stroke: 25 mm (1 “)
• Max force: 2,890 N (650 lbf)
• Max linear speed: 60 mm (2.36 “)/minute
• Low power consumption: less than 1 watt during standby, ideal for installations in isolated locations
• Optional isolated 4-20 mA position feedback
• Overall stroke and alarm limits are defined by end user