Wireless valve monitoring concept

21 September 2016

A new concept for wireless valve monitoring and diagnostics in the process industry has been introduced bu Rotork with RI Wireless which transmits real-time position indication to the control room and enables predictive maintenance for actuated valves.

Designed for both new and existing plants, RI Wireless products are certified as Zone 1 Intrinsically Safe for use in hazardous areas. 

The system comprises of a small, battery powered valve monitoring device (VMD) installed on existing or new valve actuators using a NAMUR interface, or on manual valves with an ISO 5211 interface. The VMD collects dynamics-of-state data from the actuator or valve and transmits it as a 64-point packet, providing the information required for preventative maintenance.

A network of Valve Device Routers (VDR) transfer the monitoring data from the VMDs on a wireless MESH network to the Tunneling VDR (TVDR), which transfers the data to the RI Wireless Gateway, an industrial computer that manages the system. Several TVDRs can be connected to the RI Wireless Gateway via TCP or IP networks.

The final element in the structure is the RI Wireless Management System (WMS), a software management tool which provides operational and maintenance data in common industrial standard connections to an HMI, DCS or PLC.

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