10 June 2008
The independent third party certification is an advantage to customers because it eliminates the need for prior use methodology This certification involves Fisher® GX, Vee-ball®, easy-e® and HP valves in Safety Instrumented Systems in up to SIL 3 loops, per IEC 61508. The four control valve ranges have been certified by EXIDA for on/off operation within a SIL 3 safety instrumented function. The valves can be packaged with the SIL 3 certified Fisher FIELDVUE® DVC6000 SIS digital valve controller that monitors the health of the entire final control assembly, a core component of Emerson’s smart SIS complete safety loop offering.
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