TopWorx™ ESD Valve Controllers provide a complete Partial Stroke Test Solution with unique features and functionality that enable partial stroke testing of emergency shutdown valves without disrupting or shutting down the process.
D-Series for DESD580X350

Features

  • Sensor Control Module to partially close the valve without disrupting the process
  • Pass/Fail indication via high/low response on the return signal
  • Open, Closed, and Partial Stroke Test position sensors for feedback to the DCS or PLC
  • Onboard Diagnostics to enable predictive maintenance and early-warning alerts
  • Aluminum, Composite, and 316L Stainless Steel platforms certified for use in Flameproof/Explosion Proof, Intrinsically Safe, or Non-Incendive hazardous areas
  • An optional local, lockable partial stroke Test Button integral to the unit

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