Rotork introduces CML-1500 and CML-3000 models of modulating actuators | Automation.com

Rotork introduces CML-1500 and CML-3000 models of modulating actuators

November 262018
Rotork introduces CML-1500 and CML-3000 models of modulating actuators

November 26, 2018 - Rotork has extended its CMA range of compact modulating actuators with sizes specifically designed for automation of larger linear control valves.

The actuator is capable of a maximum 4,500 lbf (20 kN) seating thrust. The sizes increase the CMA range modulating thrust performance to 3,000 lbf (13 kN) with a 114.3 mm (4.5”) stroke length for the automation of larger valves with higher pressure ratings.

The CML-1500 and CML-3000 models, including those with hazardous area approvals, are watertight to IP68 for temporary submersion (7 metres, 72 hours). The optional Reserve Power Pack (RPP) uses supercapacitors to provide the actuator with enough stored energy to perform predetermined action on mains power failure, such as moving to the fully closed position, fully open position or anywhere in between. Manual operation is available as standard.

The electric solution is suitable for a variety of applications found in sectors such as power generation, chemicals, petrochemicals and the majority of other process industries. The sizes are designed for linear valve control with modulating duty, generally in remote locations, such as oil pipelines and remote gas extraction stations where power supplies are limited. Single-phase or DC electrical power is all that is required for control valve actuation.

The CMA is a low power consumption solution (less than 1 Watt at standby) for automation in established or remote installations such as oil installations and offshore facilities where there are pneumatic limitations. The design allows for solar powered and battery back-up supplies in remote locations where electric energy consumption is a concern and power is often provided through solar collection for the operation of remote automated critical systems such as wellheads.
 

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