First SIL 3 certified control valves

10 June 2008

Emerson Process Management says it is the first control valve manufacturer to have achieved SIL 3 certification of several ranges of its Fisher® valves to IEC 61508 standards.

Fisher control valve
Fisher control valve

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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