Emerson Awarded Fisher® Valve System Contract To Upgrade Brunei LNG (liquified natural gas) Facility | Automation.com

Emerson Awarded Fisher® Valve System Contract To Upgrade Brunei LNG (liquified natural gas) Facility

April 022004
Emerson Awarded Fisher® Valve System Contract To Upgrade Brunei LNG (liquified natural gas) Facility
Fisher optimized anti-surge system will protect compressors, increase efficiency, and reduce risk

MARSHALLTOWN, IOWA (April 2, 2004) - Emerson Process Management recently received an order to replace all existing propane and mixed refrigerant compressor anti-surge valves in an LNG facility in Brunei. The 25 existing valves will be replaced by the Fisher® optimized anti-surge control valve system. This major upgrade will protect compressors, increase efficiency, and enable monitoring for predictive maintenance that reduces risk of operations downtime.

The 12-inch through 30-inch valves in the Fisher optimized anti-surge system include custom designed multi-path, multi-stage WhisperFlo® noise abatement trim that can reduce noise by up to 40 dBA. The heart of the system is in the actuation. It reduces the number of actuation accessories typically found in anti-surge valves by over 50 percent. This improves operating performance and reduces startup and commissioning times. Tuning time is reduced from 12 hours with conventional anti-surge valves to 30 minutes with the Fisher optimized system, this owing to the reduced number of accessories and the FIELDVUE® valve controller.

The Fisher valves will open in less than two seconds to protect the compressors from anti-surge conditions. Not only will the valves open quickly; they are designed to meet stringent closed-loop control criteria. Linearity of the control signal is less than 0.75% and is designed so the valve will have minimal overshoot in the open and closed directions. The actuator is installed with a cushioning feature that provides a controlled deceleration into the travel stops, preventing damage that can occur when a heavy valve plug is moved from one stop to the other.

Because the anti-surge valves are critical to plant operation, their performance will be monitored online. Diagnostic information can be collected, viewed and analyzed in real time without shutting down the valve or disturbing the process. A red, yellow or green light diagnostics-driven indicator identifies potential problems. If an alert is triggered, the problem, potential causes and recommended actions are displayed, allowing the site to schedule maintenance rather than waiting for a failure to occur.

For more information contact an Emerson Process Management sales office and request a copy of the January 2004 Hydrocarbon Processing article "Upgrade your compressor anti-surge valves," Fisher case histories D351125X012 & D351091X012 and a 2004 Texas A&M paper "Advancements in Compressor Anti-surge Control Valve Solutions."

About Emerson Process Management
Emerson Process Management (www.emersonprocess.com), an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, pulp and paper, power, food and beverage, pharmaceutical and other industries. A division of Emerson, Fisher Controls International LLC (www.emersonprocess.com/fisher) is a global leader in the design, manufacture and application of final control systems. Fisher's technology and innovation in process control play a key role in Emerson's combining of superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Emerson brands include PlantWeb®, Fisher®, Micro Motion®, Rosemount®, Daniel®, DeltaV™, Ovation®, and AMS™ Suite.

About Emerson
St. Louis-based Emerson (www.gotoemerson.com) is a global leader in bringing technology and engineering together to provide innovative solutions to customers in process control; electronics and telecommunications; industrial automation; heating, ventilating and air conditioning; and appliance and tools. Sales in fiscal 2003 were $14 billion.

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