Remove contamination with the right flushing approach for your system
From routine circulation filtration to engineered high-velocity flushing, DFS provides the level of cleaning needed to protect critical components and return systems to reliable service.
Oil Analysis • Filtration & Reclamation • System Cleaning • STLE-Certified Reliability Support
Keep contamination from
following your system into its next startup.
Debris can enter during construction, accumulate over time, spread after equipment failure or remain behind during a lubricant change. Flushing removes contamination from the reservoir and piping before it reaches critical components or contaminates new oil. Flushing may be needed for:
New equipment deserves a clean start.
New equipment builds, lubricant conversions and fluid change-outs are opportunities to remove contamination before it enters service.
Planned maintenance is the ideal time to flush.
Scheduled outages provide the best opportunity to remove debris from reservoirs and piping before returning equipment to operation.
Equipment failures can spread contamination.
Bearing, pump and component failures, along with persistent contamination, often require flushing before the system can be safely returned to service.
Not every system needs the same level of service.
DFS evaluates the system and recommends the appropriate approach rather than automatically prescribing the most extensive flush.
CIRCULATION FILTRATION
Uses the system’s pumps and normal flow path while equipment remains in operation. Best suited for routine maintenance with limited time and scope
RINSE OR PURGE
Circulates a neutral fluid or new oil to displace an existing lubricant, detergent or cleaning agent.
SYSTEM FLUSH
Uses the system pumps with temporary bypasses around critical components. Test screens and particle counts are used to verify cleanliness.
HIGH-VELOCITY OIL FLUSH
Uses external equipment and engineered turbulent flow to remove widespread contamination from piping and internal surfaces.
Engineered to remove contamination
throughout the system
Some projects require more than routine filtration. A high-velocity oil flush is designed to achieve turbulent flow capable of dislodging debris that may remain trapped during normal system operation. The program may include:
Calculated flow rates and Reynolds-number targets
External flushing equipment
Temporary tie-ins and jumper hoses
Bypasses around pumps and critical components
Test screens and particle-count monitoring
An ASTM D6439-based flushing plan
Turnkey flushing support: One team from planning through verification
Plan
Review the piping system, determine the appropriate flush method and establish the required equipment and flow rates.
Prepare
Remove and manage the oil, clean the reservoir and install any necessary tie-ins, bypasses, jumper hoses and test screens.
Flush and inspect
Continue flushing and inspecting the system until the agreed cleanliness target is met.
Reinstate and verify
Remove temporary equipment, complete post-flush cleaning, refill and filter the oil, verify cleanliness and document the results.
Protect the system. Verify the results.
A successful flush helps protect your equipment and provides documentation to support the results.
PROTECT THE SYSTEM AFTER STARTUP
A properly planned flush helps prevent:
Construction debris reaching bearings and other critical components
Failure debris causing recurring equipment problems
New oil becoming contaminated immediately
Debris remaining trapped throughout system piping
Delayed startup or commissioning
RESULTS YOU CAN VERIFY
Depending on the project,
DFS documentation may include:
Before-and-after reservoir photography
Test-screen inspections and particle counts
Collected debris for root-cause analysis
Independent laboratory results
Target ISO cleanliness verification
Detailed post-service report
Confined-space work performed in accordance with project requirements
Don’t take our word for it
“Their technical expertise has helped us make better maintenance decisions.”
SHOP EQUIPMENT MAINTENANCE SUPERVISOR
Industrial Manufacturer
“The DFS team delivered a flawless pre-commissioning flush of our HPU and turbine lube oil systems, removing construction debris and achieving our customer’s strict ISO cleanliness targets ahead of schedule. They’re our go-to specialists for critical system flushing.”
Heavy Industrial Contractor
Industrial Manufacturer
Start with the system for
the right solution
DFS can assess the contamination, determine the right flushing approach and manage the project through final verification.
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