Emerson has been awarded an order for the installation of technologically-advanced Fisher digital control valves at the Saudi Kayan petrochemical complex in Al Jubail Industrial City, Saudi Arabia.

The contract requires Emerson to supply 780 of those valves including the largest DN 1050 (42-inch) Fisher antisurge valve ever to be built.  
Scheduled for operation in 2010, and with an annual production capacity exceeding 6 million tonnes of petrochemical products, Sabic affiliate Saudi Kayan will be one of the major suppliers in the petrochemical industry.
In a statement, Emerson said the use of high-performance valves in critical applications was of significant importance to the profitability of a plant. “Fisher digital valves will enable predictive monitoring of the processes and digital valve performance, supporting proactive maintenance that addresses problems before they become issues that affect plant performance,” it said.
“The superior dynamic performance of the 5-m, 11-kg valve with Fisher optimised technology will help ensure a smooth start-up for the plant in 2010. This largest-ever Fisher FB valve will be used in the cracked gas compressor 1st stage to provide surge protection.”
Providing high reliability, tight control, fast stroking, and easy tuning, the anti-surge valve features a high-seal graphite packing to eliminate fugitive emissions, a Whisper III trim to reduce noise and vibration, a cushioned actuator, a Fisher Fieldvue DVC6000 Series-PD instrument and Optimised Digital Valve (ODV) technology to provide fast stroking with controlled deceleration, high resolution, and minimal overshoot. There are 12 valves of various sizes with ODV technology in the order.  
Fisher valves with Fieldvue digital valve controllers are key components of Emerson’s PlantWeb digital plant architecture that networks process automation systems and instrumentation to provide efficient operations and predictive technology-driven maintenance for process facilities worldwide.