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BREAUX SOLUTIONS

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EHC Flushing

Restore fluid integrity, protect EHC components, and support reliable system performance

OVERVIEW

EHC Flushing

Without proper maintenance, EHC systems become susceptible to gel formation, varnish buildup, and overall oil degradation. These issues can lead to service failures, valve sticking, reduced system responsiveness, and in severe cases, complete system failure, often resulting in costly forced outages and unplanned downtime. A comprehensive assessment is performed to identify problem areas. Based on the findings, a customized flushing and remediation procedure is developed to effectively restore system cleanliness. At Breaux Energy Services, our objective is to extend equipment life, improve system performance, and maximize uptime while minimizing operational disruptions and maintenance costs.
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IMPORTANCE

Why it Matters

  • Extend Equipment UptimeHelps maximize uptime by preventing EHC system degradation that leads to servo failure, valve sticking, and unplanned outages
  • Reduce Risk of System FailureMinimizes the risk of forced outages caused by gel formation, varnish buildup, and oil degradation in critical EHC components
  • Improve System CleanlinessRestores and maintains optimal fluid cleanliness by removing contaminants, varnish, and degraded oil throughout the system
  • Protect Critical ComponentsHelps prevent damage to pumps, valves, and servos through high-velocity flushing and targeted chemical cleaning processes
  • Support Reliable OperationsEnsures consistent, reliable performance of EHC systems while supporting long-term maintenance and reliability initiatives
  • Optimize Hydraulic ResponseEnhances EHC system responsiveness by restoring proper fluid flow and reducing restrictions caused by varnish and buildup
What We Offfer
EHC System Flush

EHC flushes use custom external skids to bypass main pumps and prevent damage. A tailored chemical process maintains pressure and increases ow velocity to remove gel and varnish.

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Fluid sampling and oil analysis are preformed to determine “as found” condition of oil. Fluid is removed via an external tote and reconditioned on-site to remove particulates and water.

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After fluid is removed, a reservoir inspection is performed to determine if any foreign material has entered the system. If found, the material is analyzed to determine the source.
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Accumulators, both piston and bladder style, are isolated and safely discharged to zero energy before removal. Units are disassembled, inspected, and rebuilt with compatible seal or Other FILTRATION SERVICES bladder kits, then reinstalled and recharged to system specs.
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A detailed post-job report includes documentation of procedures, data logs, and cleanliness verification results.
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Explore how our solutions can cut costs, extend fluid life, and keep your operations running at peak performance.
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FAQs

EHC flushing is the process of cleaning the electro-hydraulic control system in turbines to remove contaminants like varnish, sludge, and debris. It’s necessary because contamination can lead to sticking valves, poor system performance, and even unplanned outages. Regular flushing helps maintain reliability and extends equipment life.
Common signs include sluggish valve response, increased servo valve failures, high varnish potential readings, and abnormal system pressure fluctuations. Oil analysis reports showing contamination or degradation are also a strong indicator that flushing is needed.
The duration depends on the size of the system and the level of contamination, but most flushing services take anywhere from a couple of days to a week. A detailed assessment beforehand helps provide a more accurate timeline.
In most cases, yes. EHC flushing is typically performed during planned outages to ensure safety and allow thorough cleaning. However, some preparatory or conditioning steps may be done while the system is still online.
EHC flushing ensures contaminants are effectively removed using specialized equipment and procedures. This reduces the risk of component failure, improves system responsiveness, lowers maintenance costs, and helps meet industry cleanliness standards.
There’s no one-size-fits-all schedule. Frequency depends on operating conditions, oil quality, and system criticality. Many facilities rely on routine oil analysis and condition monitoring to determine when flushing is required rather than using a fixed interval.