ND800 Smart positioners

ND800 Smart positioners

The ND800 Valve Controller is suitable for quarter-turn and globe valves, and upgrades the performance of control valves so that they provide better control accuracy and reliability. It directs the valve position with a digital control algorithm using data on valve position and actuator cylinder pressure. The control algorithm allows faster and more accurate positioning than a conventional mechanical positioner, which tends to limit the performance to the control valve package. In-process diagnostics of the valve assembly makes it possible to apply predictive maintenance.

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