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Machine Design

Digital Valve Positioner Supports Fieldbus

The PMV D3 digital valve positioner supports Fieldbus and has ATEX EEX approval as an explosionproof device.

ATEX EEX approval lets the positioner be used in the European market. And Fieldbus support means the positioner can communicate via a fourth protocol, in addition to 4 to 20-mA analog, HART, and PROFIBUS. The device features a microprocessor, autocalibration, digital control of valve flow characteristics, password protection, process diagnostics, alarm settings, and multilanguage menus. The D3's combination of computeroptimized pneumatic relay and piezoelectric valves provides low steady-state air consumption measuring 0.01 scfm, for a near-zero bleed rate. Splitspindle design and a friction coupling for the feedback potentiometer lets the D3 mount on almost any actuator and in any position.

Flowserve Corp.,
5215 N. O'Connor Blvd.,
Suite 2300,
Irving, TX 75039,
(972) 443-6500,

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