2600R003BN/HC HYDAC Return Filter Element 3μm BN/HC Series

Product Overview

The 2600R003BN/HC is a representative model of the HYDAC 0240R, 0330R, 0660R, 0850R, 0950R, 1300R and 2600R series return-line filter elements. It features Betamicron® BN/HC (or BN4HC) multi-layer glass-fiber media with an absolute filtration rating of 3 μm. Designed specifically for hydraulic system return lines, it delivers high dirt-holding capacity, stable beta ratios and low initial differential pressure. Fully interchangeable with original HYDAC elements, it installs directly into existing housings without any modifications. Every element is validated to ISO standards and undergoes 100% simulated operating condition testing to reliably remove metal particles, wear debris and other mechanical contaminants, maintaining high oil cleanliness and extending the service life of pumps, valves and actuators.

Technical Specifications 

• Model: 2600R003BN/HC (series covers 0240R, 0330R, 0660R, 0850R, 0950R, 1300R, 2600R sizes)
• Filter media: Betamicron® BN/HC or BN4HC (multi-layer inorganic glass fiber)
• Filtration rating: 3 μm (absolute, typical βx(c) ≥ 200 / ≥ 1000)
• Collapse pressure: 20 bar (low-collapse type for return-line service)
• Seal material: NBR (standard)
• Flow direction: Outside to inside
• Operating temperature range: approx. –30…+100 °C
• Compatible fluids: Mineral hydraulic oils, lubricants and other compatible media
• Typical dimensions: Vary by size (2600 size approx. OD 143 mm, length in the 920 mm range)
• Test standards: Compliant with ISO 2941 (collapse/burst), ISO 2942 (fabrication integrity), ISO 16889 (multi-pass filtration performance), etc.

Key Technical Advantages

• Betamicron® high-performance media: Multi-layer glass-fiber construction optimizes particle separation efficiency and dirt-holding capacity while maintaining low Δp/Q characteristics, significantly improving oil cleanliness and extending both element and fluid service life.
• High-flow return-line design: Series covers medium to large flow rates (up to 2600 size). Outside-to-inside flow direction enhances structural stability and fatigue resistance for continuous high-load operation.
• Full interchangeability and reliable sealing: Exact dimensional and interface match to original HYDAC units. NBR seals ensure leak-free, easy installation and reduced downtime.
• Rigorous quality control: Manufactured and tested to multiple ISO standards with simulated duty-cycle verification, guaranteeing long-term reliability under vibration, temperature fluctuations and high contamination loads.

Application Areas

Construction machinery, injection molding machines, die-casting machines, metallurgical equipment, power plant hydraulic systems, marine hydraulics, machine tools, test stands, and high-flow hydraulic power units requiring return-line filtration. Especially suitable for OEM equipment and retrofit projects that demand rapid element replacement and consistent high oil cleanliness levels.

Expert Maintenance Tips

Depressurize the system and thoroughly clean the filter housing interior before replacement to prevent secondary contamination. Ensure the O-ring is intact and correctly seated, then tighten to the specified torque. Replace the element according to differential pressure indicator readings or system contamination monitoring; do not exceed the recommended pressure drop. Use appropriate-rated elements for initial flushing of new or overhauled systems. Regularly inspect seals and housing condition for corrosion. Always use compatible hydraulic fluid and maintain temperature and viscosity within recommended ranges to maximize element life and filtration efficiency.