The Rotork Skilmatic SI self-contained electro-hydraulic valve actuator combines all-electric simplicity with the precision of hydraulic actuation and the reliability of mechanical failsafe operation. Typical applications for Skilmatic actuators include functional safety related Emergency Shutdown (ESD) and Remotely Operated Shutoff Valve (ROSoV) duties.
Skilmatic’s advanced control and monitoring system has now been further developed with the introduction of the third generation, incorporating proven Rotork IQ3 intelligent electric actuator technology. Communication and data logging capabilities have been increased in response to end users’ desire to access more valve related data, both in the field and in the control room.
The third generation of the SI actuator will consist of four models with multiple actuator sizes known as SI³-1, SI³-2, SI³-3 and SI³-4, enabling Rotork to offer quarter-turn failsafe actuation from 65 Nm up to 600 000 Nm for functional safety applications. As part of the development Rotork has enhanced the range by introducing the new SI³-3 standard range of spring return actuators with a torque range of 2000 - 20 000 Nm. This new range offers a wide choice of operating speeds, additional ESD options with single or dual inputs and enhancements to partial stroking to meet a wide range of applications.
Skilmatic SI third generation actuators combine established features including non-intrusive setting, performance monitoring and configurable data logging with an extended torque output range, increased functionality and enhanced availability of valve and process data for asset management and data analysis, displayed in a new, large and information-rich format.
Robustly constructed for challenging environments, SI third generation actuators deliver a highly reliable means of valve management and positioning a valve to a safe condition. Safe valve positioning is selectable for failsafe to open, failsafe to close or lock in position on either loss of power or a range of programmable ESD signal options.
Edited from source by Elizabeth Corner
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