Valve position indicator units

A total of 1160 wireless VPI (Valve Position Indicator) units have been ordered from Dutch valve safety specialist Netherlocks by Bilbao Petronor Oil Refinery following a three year pilot.

The VPI provides a feedback signal from hand wheel operated valves, converting the open and closed positions to a digital signal by way of a mechanical counter system.

The VPI is an 'add-on' product, and can be mounted to new or existing hand wheel operated gate, globe or rising stem valves without interrupting normal process.

Coupled with the mechanical counter system, Netherlocks uses an ATEX-approved switch as standard - though customers are able to change this specification if required.

Petronor wanted a wireless solution - which posed no problem using the VPI technology.