Rotork

CVA Range – Linear and Quarter-turn Actuators to Automate Control Valves

The CVA range of linear and quarter-turn actuators provide an electrically powered process control operator suitable for most control valve types and sizes. The CVA sets a new standard for process control and valve actuation.

Rotork has proven expertise in applying new technologies in the automation of valves to bring enhanced performance and innovative features. This philosophy has now been applied to a new range designed specifically for the exacting demands of process control, specfically continuous modulating control valve applications.

Using the combination of advanced actuator engineering and process control experience, plus specification input from major control valve end users, Rotork has produced a range of control valve actuators that are unique in the industry and provide solutions to many common control issues.

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

• Small, compact & lightweight
• Manual override
• Externally adjustable mechanical stops*
• IP68 (10m / 100 hours)
• 12/24 VDC, 110/220 VAC 1-phase and 220/380/440 VAC 3-phase, 50 Hz and 60 Hz
• Position indication via local mechanical indicator
• -30 to +70 ºC (-22 to +158 ºF)† operation

• Small, compact & lightweight
• Manual override
• Externally adjustable mechanical stops*
• Local control unit (local/remote, on/off)
• Status relays
• Phase rotation correction
• IP68 (10m / 100 hours)
• 12/24 VDC, 110/220 VAC 1-phase and 220/380/440 VAC 3-phase, 50 Hz and 60 Hz
• Position indication via local mechanical indicator and LEDs
• -30 to +70 ºC (-22 to +158 ºF)† operation

* ROM and ROMpak 2, 3, 4, 5, 6 & 7 actuators only
† 12/24 VDC units are -30 to +65 ºC (-22 to +149 ºF)

Additional information:

• Motor-independent handwheel operation available at all times
• Fast and efficient maintenance and commissioning due to plug and socket connections
• Oil bath lubrication for extended life and mounting in any orientation
• Rapid and secure commissioning and configuration using local controls or setting tool
• Increased protection by using independent torque and position sensing
• Hollow output drive to accept rising valve stems
• Detachable thrust and non-thrust base options
• Direct output torque range: 10 – 500 Nm (7 – 369 lbf.ft)
• Max. torque with multi-turn gearbox: 10,800 Nm (8,000 lbf.ft)
• Max. torque with quarter-turn gearbox: 205,600 Nm (151,600 lbf.ft)

Products:

• PM (Pedestal Mount) Series and DM (Direct-Mount) Series, rotary, 32 to 13,500 lbf.ft (43 to 18,225 Nm) torque range, 30 to 100 degree rotation
  • FasTraK Series are pedestal-mount products offered with one week delivery to replace the most common legacy damper drives. Twelve models available
• AH (Ash Hopper) Series, rotary, 68 to 1,500 lbf.ft. (91 to 2,025 Nm) torque range, 30 to 100 degree rotation
• CT Series, linear, 460 lbf. (2,046 N) thrust rating, 5” (127 mm) stroke, used for secondary air control on T-fired boilers
• JR Series, linear, 1,178 to 1,885 lbf. (5,240 to 8,385 N) thrust rating, 1.5” to 18” (38 to 457 mm) stroke, used for burner shroud control on wall-fired boilers
• LX Series, linear, application specific thrust and stroke ratings

See Main Type K Catalogue for further details.