DVC6000 Series Digital Valve Controllers for Emergency Shut Down(ESD) Solutions
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These systems involve final control elements, which are mostly in one position and are requested to move only when an emergency situation arises. Typical applications involve Emergency Shut Down Valves, Emergency Blow Down Valves, Emergency Venting Valves, Emergency Isolation Valves, Critical On-Off Valves, etc. Because the final control element remains in one position without mechanical movement, the dependability of the valve is reduced; that is, it may not operate successfully upon demand. This could cause a potentially dangerous condition leading to an explosion or fire and the leaking of lethal chemicals and gases to the environment.
Fisher offers a solution for Emergency Shut Down (ESD) valves that uses FIELDVUE DVC6000 Series digital valve controllers. Using DVC6000 Series instruments for ESD solutions permits partial stroking of the valve to minimize the chance of valve failure and, consequently, the possibility of catastrophic situations. Partial stroking tests valve movement with a small ramp. This ramp is small enough not to disrupt production, but is large enough to confirm that the valve is working. DVC6000 Series instruments in ESD solutions also provide state-of-the-art testing methods, which reduce testing and maintenance time, reduce initial investment cost, improve system performance, and provide diagnostic capabilities.