Emerson Process Management has 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 optimised anti-surge control valve system. This upgrade will protect compressors, increase efficiency, and enable monitoring for predictive maintenance that reduces risk of operations downtime. The 12” through 30” valves in the Fisher optimised 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%. This improves operating performance and reduces start-up and commissioning times. Tuning time is reduced from 12 hours with conventional anti-surge valves to 30 minutes with the Fisher optimised system, this owing to the reduced number of accessories and the FIELDVUE® valve controller.
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