Compact, high quality and durable valve positioner.

The new TopWorx™ DVR Switchbox, an entry-level addition to the DV Series of valve position indicators has been announced by Emerson. It combines a durable resin enclosure, compact size and a patented cam design that provides water and wastewater systems, food and beverage production lines and industrial utilities a reliable valve position feedback tool.

This switchbox uses a low-profile indication to provide easy-to-read local position feedback. This is vital real-time data that helps technicians and plant operators keep processes on target. Engineered for harsh environments, it features stainless-steel components to provide a reliable, corrosion-resistant valve indication solution to keep customer processes running smoothly.

Clear and highly reliable feedback of valve position helps process industry plants, platforms and pipelines operate with peak efficiency and safety without taking up additional production line footprint.

The TopWorx DVR Switchbox cam design enables swift position configuration for faster, easier installation and maintenance. For many process industry applications, the TopWorx DVR provides a compact and versatile design well suited for confined spaces.

In addition, its enclosure has an ultraviolet (UV) F1 rating, providing UV resistance that ensures the DVR performs reliably over the long term in outdoor conditions.

It is one more offering in the TopWorx valve intelligence and proximity sensing portfolio from Emerson, designed to help process industry plants manage and control operations more intelligently and efficiently under the most demanding conditions.

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Top mounted valve postioner.

The new Research Control® SRD991 top-mount valve positioner from Badger pushes the limits of process control and optimization. The new valve positioner mounts directly to the top of a control valve with a rugged linear potentiometer.

While most valve positioners are side-mounted, the new top-mounted SRD991 uses a linear connection, which mitigates hysteresis between the positioner and actuator by feeding back the actual position of a valve actuator – faster, more accurate and more consistent than ever before. This provides significantly improved flow control.

Top-mount valve positioners should be used when the application calls for high positioning accuracy or when greater force is required over the standard actuator, such as in the case of high shutoff pressures or excess packing friction. The SRD991 top-mount positioner is available with a large amount of benefits including a LCD screen, protocols (HART, PROFIBUS-PA and FOUNDATION Fieldbus H1) and two levels of diagnostics. All the diagnostics features can be easily configured and displayed by the positioner DTM. Moreover, the Positioner DTM enables a complete health report of the valve with full configuration and diagnostics data. The simple installation and setup of the SRD991 positioner allows an easy upgrade of any BLRA pneumatic positioner.