HYDAC FLND Series Inline Duplex Industrial Filters provide reliable, continuous filtration for low-pressure hydraulic systems operating up to 360 psi (25 bar), with flow rates up to 105 gpm. Featuring a duplex design with an integrated changeover and pressure equalization valve, durable aluminum construction, and convenient screw-in filter bowls, these filters help protect hydraulic components while minimizing maintenance-related downtime in demanding industrial applications.

Product Description

The HYDAC Inline Duplex Industrial Filter FLND Series provides reliable, continuous filtration for low-pressure hydraulic systems, helping protect critical components from contamination while minimizing equipment downtime. Designed for operating pressures up to 360 psi (25 bar) and flow rates up to 105 gpm, these filters deliver dependable performance in demanding industrial applications where hydraulic fluid cleanliness and uninterrupted system operation are essential.

Featuring a lightweight duplex design with an integrated segment-type changeover valve, the FLND Series allows operators to switch between filter housings for element replacement or cleaning without shutting down the hydraulic system. An integrated pressure equalization valve allows pressure to be balanced between chambers before switching, supporting convenient and reliable operation during maintenance.

The FLND Series features durable aluminum filter bowls and heads in its standard left-to-right flow configuration, providing strength while minimizing overall weight. The water-tolerant aluminum alloy construction eliminates the need for anodization when used with high-water-based fluids. Filter housings are engineered to withstand pressure surges and high static pressure loads, ensuring dependable performance in demanding operating environments.

Available in FLND 160, 250, and 400 configurations, these filters accommodate different flow requirements and filtration needs. Multiple filter media options, including Sustainmicron and wire mesh elements, provide flexibility for specific hydraulic applications. Optional visual, electrical, and electronic differential pressure clogging indicators help operators monitor filter condition and identify maintenance requirements.

The FLND Series also features convenient screw-in filter bowls, standard vent and drain plugs, and optional bypass valve configurations. SAE straight-thread, BSPP, and SAE Code 61 flange connections provide installation flexibility, while select configurations can be modified to meet DIN 24550 requirements.

With continuous filtration capability, durable construction, and flexible configuration options, HYDAC FLND Series filters provide an efficient solution for maintaining hydraulic fluid cleanliness, reducing maintenance-related downtime, 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.
  • Continuous Filtration: Duplex design allows filter element replacement or cleaning while the hydraulic system remains in operation.
  • Integrated Changeover Valve: Segment-type valve allows operators to switch between filter housings for convenient servicing.
  • Pressure Equalization: Integrated equalization valve balances pressure between filter chambers before switching.
  • Lightweight Construction: Aluminum filter heads and bowls provide strength and durability while minimizing overall weight in standard configurations.
  • Pressure-Resistant Design: Filter housings are engineered to withstand pressure surges and high static pressure loads.
  • Convenient Maintenance: Screw-in filter bowls simplify element removal, cleaning, and replacement.
  • Flexible Installation: SAE straight-thread, BSPP, and SAE Code 61 flange connections accommodate various hydraulic system configurations.
  • Versatile Filtration Options: Available with Sustainmicron and wire mesh filter elements in multiple micron ratings.
  • Condition Monitoring: Optional visual, electrical, electrical/visual, and electronic differential pressure clogging indicators help identify maintenance requirements.
  • Bypass Protection: Standard and optional bypass valve configurations accommodate different operating conditions and filtration needs.
  • 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.
  • Operating Temperature Range: Suitable for fluid temperatures from 14°F to 212°F (-10°C to 100°C).

Typical Applications

HYDAC FLND Series Inline Duplex Industrial Filters are suitable for hydraulic systems used in automotive manufacturing, gearboxes, industrial equipment, power generation, pulp and paper processing, shipbuilding, and steel and heavy industrial applications. Their continuous filtration capability makes them particularly well-suited for operations where minimizing downtime and maintaining uninterrupted hydraulic system performance are critical.

Downloads:

HYDAC Inline Duplex Industrial Filter FLND Series Data Sheet

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