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Smart Valve Positioners


Smart Valve Positioners are digital valve controllers and microprocessor-based used to control the opening or closing of the actuator based on electric or pneumatic signals. They have internal logic capability and designed to convert a current signal to a pressure signal to operate a valve.

The smart valve positioners have the ability to embed software commands into the memory of these digital controllers. This represents the real difference between digital and analog I/P devices. The software capability allows automatic configuration as well as the setup of the valve when equipped with a digital controller. Most importantly, it allows two-way communication for process, valve and instrument diagnostics.

When using smart valve positioners, you have automatic calibration as well as configuration. This allows you to realize considerable time savings over traditional zero and spanning. They also feature valve diagnostics. Through the Distributed Control System (DCS), PC software tools, or handheld communicators, users can diagnose the health of a control valve while it’s in the line. Other features include reduced cost of loop commissioning (including installation and calibration), use of diagnostics to maintain loop performance levels and improved process control accuracy that reduces process variability.

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