Air breathing
Tank breathing introduces airborne dust, moisture, and particles.
Contamination Control
Understand contamination. Control the risk.
Invisible water and particles can accelerate wear. The right filtration keeps fluid at a measurable cleanliness level.
Why filtration is needed
Clear-looking biodiesel is not necessarily clean.
Microscopic particles and water are often invisible, yet can enter during delivery, storage, or transfer to the unit.
Without proper control, contaminants can clog engine filters, accelerate component wear, reduce combustion efficiency, and compromise asset readiness.
Distribution chain
Contamination can enter at every transfer point.
An integrated strategy maintains quality from the source to the diesel-engine inlet.
- 01Source / Depot
- 02Bulk Tank
- 03Truck / Vessel
- 04Local Tank
- 05Dispensing
- 06Diesel Engine Inlet
Condensation
Temperature changes create water that accumulates at the tank bottom.
Tank & piping
Rust, scale, and residue break loose from tanks and ageing pipework.
Transfer process
Hoses, pumps, trucks, and vessels can introduce contamination.
Rain ingress
Rainwater enters through unprotected vents, caps, or openings.
Microorganisms
Bacteria and fungi grow at the water interface, creating sludge and acids.
ISO 4406
Cleanliness that can be compared.
ISO codes communicate particle counts in a fluid. Lower numbers indicate lower particle contamination.
Example initial condition
±22 / 20 / 16
Higher particle level
Multi-stage filtration→water separation + particle removal
Cleanliness target
18 / 16 / 13
Cleaner, controlled fluid
Note: the actual target must be defined from machine specifications, fluid conditions, and customer operating requirements.
ISO channel 1> 4 µm(c)Very fine particles
ISO channel 2> 6 µm(c)Fine particles
ISO channel 3> 14 µm(c)Larger particles
Water referencemax. 400 PPMExample target in the technical material
Accelerated wearClogged injectorsPower loss & black smokeHigher fuel consumptionIncreased downtime & cost
Integrated strategy
Receiving filtration and fuel polishing work as one control system.
Receiving filtration
Filtering fuel before contaminants enter the bulk or main tank.
Storage polishing
Periodic circulation controls water and particles accumulated during storage.
Point-of-use protection
Filtration at dispensing or inlet provides a final protection layer before the engine.
Multi-stage process
Four stages toward cleaner fluid.
Inlet
Fluid enters with water and particles from the tank or distribution line.
Water Separation
System media and configuration help separate water from fuel.
Particle Removal
Filtration elements capture particles at the selected micron rating.
Clean Outlet
Fluid exits at a more controlled cleanliness level toward the asset.
Technical questions
Frequently asked questions.
Initial answers to help start a filtration-requirements discussion.
No. Flow capacity, contamination sources, fluid type, installation space, and cleanliness targets must be considered first.
The system can be placed at fuel receiving, the main tank, the fuel truck, or the point of use. Placement follows each operation’s risks and distribution pattern.
Element condition can be monitored through differential pressure, operating hours, fluid volume, and quality evaluation. The actual interval depends on contamination load.
That figure is an example target from the technical material. The final target must align with OEM specifications and customer operating conditions.
Start with your actual operating conditions
Need the right filtration system for your operation?
Our technical team can map critical points, capacity, and fluid cleanliness targets.