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 3rd 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 3rd 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 2,000 Nm to 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 3rd 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.
Designed for functional safety applications to SIL2 (1oo1) and SIL3 (1oo2) for use on safety critical applications, the actuators are also offered with enhanced partial stroke testing (PST), enabling valves to be function tested without affecting the process. Performed either locally with the setting tool or remotely from the control room via hardwire or fieldbus communications, PST tests all the final elements (actuator and valve) by measuring the time to move to a set position whilst monitoring the pressure. PST results are recorded by the integral datalogger, shown on the display screen and optionally remotely indicated.
All actuators are available with hazardous area certification encompassing ATEX, INMETRO, IEC, FM, CSA and GOST. The double-sealed electric enclosure is watertight and dustproof in ratings up to IP68 (submersed to a depth of 7 metres for 72 hours). Specifiable for three-phase, single-phase or DC electrical power supplies, the Skilmatic SI3 range delivers a range of rotary torque or linear thrust outputs that are suitable for valves of virtually any size and design.
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