Product category:
Process and OEM Valves
News Release from: Emerson Process Management - Fisher Valves
Edited by the Engineeringtalk Editorial
Team on 30 April 2004
Anti-surge valves to upgrade Brunei LNG
facility
Emerson Process Management recently received an order to replace all existing propane and mixed refrigerant compressor anti-surge valves for an LNG facility in Brunei.
Emerson Process Management recently received an order to replace all existing propane and mixed refrigerant compressor anti-surge valves for an LNG facility in Brunei The 25 existing valves will be replaced by the Fisher optimised anti-surge control valve system
This article was originally published on Engineeringtalk on 12 Mar 2001 at 8.00am (UK)
Related stories
Control valve handbook now available
The new Control Valve Handbook, now available from Fisher Controls and Regulators, is both a primary reference work and a textbook.
New digital level controller from Fisher Controls
The DLC3000, a new microprocessor based Digital Liquid Level Controller for use with displacer type sensors, has been announced by Fisher Controls.
This major upgrade will protect compressors, increase efficiency, and enable monitoring for predictive maintenance that reduces risk of operations downtime.
The 12 to 30in valves in the Fisher optimised anti-surge system include custom designed multipath, multistage WhisperFlo noise abatement trim that can reduce noise by up to 40dBA.
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 startup and commissioning times.
Tuning time is reduced from 12h with conventional anti-surge valves to 30min with the Fisher optimised system, as a result of the reduced number of accessories and the Fieldvue valve controller.
The Fisher valves will open in less than 2s to protect the compressors from 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 held to within 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 analysed in real time without shutting down the valve or disturbing the process.
A simple 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 wait for a failure to occur.
• Emerson Process Management - Fisher Valves: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
