HYDAC Inline Industrial Filter (FLN Series 360 PSI)

The HYDAC FLN Series Inline Industrial Filters provide reliable, efficient filtration for low-pressure hydraulic systems, helping protect critical components from contamination and maintain optimal system performance. Designed for operating pressures up to 360 psi (25 bar) and flow rates up to 105 gpm, these filters deliver dependable performance across a wide range of industrial and mobile hydraulic applications.

Featuring durable aluminum heads and bowls, the FLN Series utilizes a non-welded housing design that reduces stress concentrations and helps prevent fatigue failure. The water-tolerant aluminum alloy construction eliminates the need for anodization when used with high-water-based fluids, providing versatility for demanding hydraulic environments.

The FLN Series features a screw-in filter bowl mounted below the filter head, requiring minimal clearance for filter element removal and replacement. This design helps prevent contaminated fluid from washing downstream during servicing, supporting cleaner maintenance procedures and improved hydraulic system protection. Reliable O-ring axial seals provide positive sealing, while multiple SAE straight-thread O-ring boss, BSPP, and SAE Code 61 flange connections allow flexible installation without costly adapters.

Available in FLN 160, 250, and 400 configurations, these filters accommodate different flow requirements and filtration needs. Multiple filter media options, including Betamicron low-collapse, Betamicron high-collapse, and wire mesh elements, provide flexibility for specific hydraulic applications. Optional differential pressure clogging indicators use magnetic actuation without external dynamic seals, reducing potential leak points and helping operators monitor filter condition.

The FLN Series also offers optional poppet-type bypass valves designed to provide positive sealing during normal operation and rapid opening during cold starts or flow surges. With multiple filtration ratings, connection options, and seal materials, HYDAC FLN Series filters provide a versatile solution for maintaining hydraulic fluid cleanliness and supporting long-term equipment reliability.

Key Features and Benefits

• Low-Pressure Performance: Rated for operating pressures up to 360 psi (25 bar), with flow capacities up to 105 gpm.
• Durable Aluminum Construction: Aluminum heads and bowls provide dependable performance and compatibility with a broad range of hydraulic fluids.
• Fatigue-Resistant Design: Non-welded housing construction reduces stress concentrations and helps prevent fatigue failure.
• Convenient Maintenance: Screw-in filter bowl requires minimal clearance for filter element replacement and helps prevent contaminated fluid from washing downstream during servicing.
• Flexible Installation: SAE straight-thread O-ring boss, BSPP, and SAE Code 61 flange connections accommodate various hydraulic system configurations.
• Reliable Sealing: O-ring axial seals provide positive sealing and help prevent fluid leakage.
• Versatile Filtration Options: Available with Betamicron low-collapse, Betamicron high-collapse, and wire mesh elements in multiple micron ratings.
• Condition Monitoring: Optional differential pressure clogging indicators feature magnetic actuation without external dynamic seals, eliminating a potential leak point.
• Bypass Protection: Optional poppet-type bypass valves provide positive sealing and rapid opening during cold starts and flow surges.
• DIN Compatibility: Select configurations can be modified to meet DIN 24550 requirements.
• Fluid Compatibility: Compatible with hydrocarbon-based oils, synthetic fluids, water-glycols, oil/water emulsions, and high-water-based fluids when appropriate seals are selected.
• Wide Operating Temperature Range: Suitable for fluid temperatures from -22°F to 212°F (-30°C to 100°C).

Typical Applications

HYDAC FLN Series Inline Industrial Filters are suitable for hydraulic systems used in agricultural equipment, automotive manufacturing, construction machinery, gearboxes, industrial equipment, power generation, and pulp and paper processing. Their durable construction, flexible connection options, and convenient maintenance features make them well-suited for applications requiring dependable inline hydraulic filtration.

Downloads:

HYDAC In-Tank Return Filter HF4R Series Data Sheet