Parker Velcon Diesel Fuel Filtration - Parker Velcon Distributors

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Parker Velcon DFO Series Particulate Filtration & Diesel Coalescing: Superior Diesel Fuel Filtration for Maximum Engine Performance

Ensure your diesel and biodiesel fuels meet ISO 4406 cleanliness standards with Parker’s high-quality filtration solutions.

Prevent Contamination and Protect Your Equipment

Diesel fuel undergoes multiple transfers during refining, storage, and distribution, introducing contaminants like silica and pipe scale. The Parker DFO Series transforms contaminated fuels to meet the strict ISO 4406 cleanliness standards, ensuring high engine performance and reduced maintenance costs.

Tailored Solutions for Every Filtration Need

The Parker DFO Series offers filters with tiered ratings to handle contamination throughout the fuel transfer process. Each tier ensures that fuels meet ISO standards, delivering cleaner, more efficient operation.

• 2 & 5 Micron Filters: Ultimate solution for final fuel conditioning. Ensures ISO 4406 cleanliness standards with each progressively finer filter, achieving lower particle counts.
• 10 Micron Filters: Extends filter life by removing particulates and allowing coalescing filters to focus on water removal.
• 25 Micron Filters: Ideal for managing contamination in storage tanks during fuel transfer.

Experience the Parker DFO Advantage

• Lower Operating Costs: Prevent engine damage by removing harmful particulates.
• Reliable Fuel Injector Performance: Meets ISO 4406 Cleanliness Standards for improved injector function.
• Increased Equipment Uptime: Reduce failures, repairs, and replacements, ensuring peak operation.

Parker DFO Filter Specifications

• Multi-layer pleated filtration layers using engineered fibre blends for optimum filter life and efficiency.
• All filter components compatible with diesel and biodiesel blends
• Inside diameter
  • 3.5 in (88.9 mm)
• Outside diameter
  • 6 in (152.4 mm)
• Recommended change out pressure: 25 psid (1.7 bar)
• Nitrile sealing materials are standard
• Maximum Operating Temperature: 225°F (107°C)
• End cap configuration options
  • Double open end
  • Threaded base (TB)
• Collapse pressure
  • 75 psi (5.2 bar)
• pH range (continuous operation)
  • 5-9

Element Part Numbers

Parker Velcon DI/DO & DSO Series Particulate Filtration: Clean, Dry Diesel Fuel for Peak Engine Performance

Protect your equipment with multi-stage particulate and water removal filtration, ensuring your fuel meets stringent cleanliness standards

Particulate and Water Removal for Diesel Fuel Applications

Diesel fuel is prone to contamination as it moves from refinery to end-use points. Common contaminants like silica, pipe scale, and water degrade fuel quality, jeopardising equipment performance. Parker’s DI Coalescers and DSO Separators ensure your fuel meets the highest standards by delivering multi-stage filtration.

The DI Coalescer removes particles and coalesces water droplets through an inside-out flow. The DSO Separator blocks water droplets with a hydrophobic barrier, ensuring only clean, dry fuel flows downstream. This process guarantees fuel that is free of harmful particulates and water—ready for reliable use.

Two-Stage Filtration for Clean, Dry Fuel

Stage 1: DI Coalescer

• Removes particles through inside-out filtration.
• Coalesces water droplets into larger drops that settle in the sump.

Stage 2: DSO Separator

• Uses outside-in filtration with a hydrophobic barrier.
• Blocks water droplets from passing downstream, ensuring only dry fuel reaches your equipment.

Important Considerations for Fuel Containing Surfactants

Water removal may be less effective if your fuel contains high levels of surfactants, alcohols, or unrefined biofuels. Additives and detergents can reduce Interfacial Tension (IFT), impacting coalescing efficiency and potentially disarming the coalescers.

• Coalescing is not recommended for biodiesel blends over 5% (B5).
• For further analysis, contact us to assess the presence of surfactants in your fuel.

Optimised Filtration with Tiered Coalescer Ratings

Parker’s DI/DO & DSO Series offers three filtration tiers to address different contamination challenges:

• 5 Micron Coalescer: Combines advanced particle removal with top-tier water coalescing technology for optimal fuel cleanliness.
• 10 Micron Filter Coalescer: Effective for particulate removal with industry-proven water coalescing capability.
• 25 Micron Filter Coalescer: Designed for environments with heavier particle contamination, maintaining excellent coalescing performance.

Unlock Maximum Performance with Parker Velcon Filtration

• Extended Equipment Uptime: Keep equipment running efficiently with clean, dry fuel.
• Lower Operating Costs: Minimise engine damage caused by particulate contamination.
• Reliable Injector Performance: Ensure ISO-compliant fuel cleanliness for better injector operation.
• Reduced Fuel System Maintenance: Decrease the need for frequent repairs or filter changes.

DI/DO & DSO Filtration System Specifications

• Multi-layer pleated filtration layers using engineered fibre blends for solids retention. Sequenced coalescing materials to grow large water droplets from emulsified water.
• All filter components compatible with diesel and biodiesel blends
• Inside diameter
  • 3.5 in (88.9 mm)
• Outside diameter
  • 6 in (152.4 mm)
• DI – coalescer flow direction – inside to outside
• DO – coalescer flow direction – outside to inside (DVX Series)
• DSO – separator flow direction – outside to inside
• Recommended change out pressure: 25 psid (1.7 bar)
• Downstream free-water level typically below 50 ppm
• Nitrile sealing materials are standard
• Maximum Operating Temperature: 150°F (65°C)
• End cap configuration options
  • Double open end
  • Threaded base
• Maximum burst pressure
  • 75 psi (5.2 bar)
• pH range (continuous operation)
  • 5-9

Element Part Numbers