Home > Rotork IQ3 intelligent valve actuation ordered for Caltex Kurnell terminal upgrade

Rotork IQ3 intelligent valve actuation ordered for Caltex Kurnell terminal upgrade

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article image Rotork IQ3 valve actuators retrofitted on previously manually operated double block and bleed valves on Berth Number 2 at the Caltex Kurnell Sydney site
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Intelligent electric valve actuators and two-wire digital control systems from Rotork Australia have been specified for a major plant upgrade at the Caltex Kurnell site in Sydney, Australia.

The upgrade project will convert the existing refinery site into an import terminal for the storage and distribution of petrol, diesel, jet fuel and fuel oil.

The new IQ3 actuators from Rotork’s third generation of pioneering non-intrusive intelligent electric actuator range, which form a large proportion of the 300 actuators involved in the project will be monitored and controlled by ten hot-standby Rotork Pakscan P3 bus networks. Designed specifically for the remote operation of valve actuators and the spacious environments associated with tank farms, Pakscan provides the vital link between actuators in the field and the host control system.

Many of the actuators will be supplied on new valves while some are being retrofitted by Rotork Site Services Australia onto existing hand operated valve installations including the terminal berths where IQ3 actuators will be used to motorise the double block and bleed manifold valves. Rotork’s retrofit responsibilities encompass surveying and measuring the on-site valves, sizing and installing the new actuators and assisting with the integration and commissioning of the Pakscan networks throughout the site.

Launched in 2012, the IQ3 has introduced new levels of functionality and asset management abilities for valve actuation. Advanced IQ data logging and communication capabilities have been increased in response to the end users’ desire to access more data, both in the field and in the control room.

A feature highlight of the new IQ3 actuators is the large toughened glass wide angle indication window designed for non-intrusive two-way wireless communication and multi-functional indication that provides positional and warning icon information, whilst actuator setup and operating menus along with detailed diagnostic and operational data screens are clearly displayed in dot matrix format. Diagnostic screens show the valve torque and usage profiles along with service logs, facilitating real time analysis directly at the actuator.

A handheld setting tool with Bluetooth wireless technology also enables the data from the actuators to be transferred to a PC for analysis using Rotork Insight2 diagnostic software. Valve maintenance requirements can be identified and anticipated, eliminating unplanned interruptions or over-cautious planned maintenance outages.

All actuators including those with explosion-proof certification feature an IP68 watertight and temporarily submersible double-sealed enclosure, ensuring long-term reliable performance in challenging environments.

The Pakscan P3 digital control system is capable of monitoring and controlling up to 240 actuators without repeaters on a single highway with a length of up to 20 kilometres. Current status and alarm indication is updated at the P3 master station when data changes, providing real-time status indication of every actuator on the network.

An event logger captures and saves every major change in the status of the actuators, and also records all digital and analogue commands. Logged data is viewable at the master station or on web pages.

Questions about this article

15/08/2013 - Rotork does not have level sensors in our product range, but we can easily supply an actuator to operate a valve for your application. You would be best to contact a local instrumentation supplier for the level gauge and they could then provide a signal to operate our electric actuator.

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