May 11, 2023
UNSTABLE LEVEL CONTROL- CASE STUDY
EVENT REPORTED by SAM GUARD®
SAM GUARD® detected a malfunctioning level control valve combined with a new Set Point that was not suitable for appropriate work.
The level control valve of the heat exchanger was usually at a stable value of 50% and started fluctuating immediately when the Set Point was changed.
MAINTENANCE TEAM FINDINGS
During the daily meeting, the issue was brought up and relayed to the shift manager, maintenance team, and plant team.
Following an on-site assessment, it was determined that the valve had a mechanical problem, and the new Set Point was unsuitable for the process.
The Set Point was reset to its initial levels once the valve was replaced.
COST / DOWNTIME AVOIDED
Further harm was prevented by early identification of defective level control valves and their operation under unsuitable manufacturing conditions.
“The level of the cooler fluid in the heat exchanger is critical for operation.
This alert help rectify the issue as soon as possible including maintenance and process.”