HYDAC In-Tank/Inline Duplex Industrial Filter (NFD Series 360 PSI)

The HYDAC NFD Series In-Tank / Inline Duplex Industrial Filters provide reliable, high-capacity filtration for low-pressure hydraulic systems, helping protect critical components from contamination while maintaining continuous system operation. Designed for operating pressures up to 360 psi (25 bar) and flow rates up to 450 gpm, these filters deliver dependable performance in demanding industrial applications where equipment uptime and hydraulic fluid cleanliness are essential.

Featuring a duplex configuration with a ball-type diverter valve, the NFD Series allows operators to switch between filter housings without shutting down the hydraulic system. This continuous filtration capability enables filter element replacement during operation, helping minimize maintenance-related downtime and improve productivity.

The NFD Series features durable aluminum heads, housings, and lids, with ductile iron elbows and manifolds for added strength. The water-tolerant aluminum alloy construction eliminates the need for anodization when used with high-water-based fluids. Standard vent and drain ports, along with screw-on lids, provide convenient access for routine maintenance and filter element replacement.

Available in NFD 1340, 2640, 5240, 7840, and 10440 configurations, these filters accommodate a variety of filtration requirements with multiple element media options, including Sustainmicron, ECOmicron, Betamicron/Aquamicron, Stat-X, wire mesh, polyester, and metal fiber. Optional differential pressure clogging indicators help monitor filter condition, while multiple bypass valve settings provide additional flexibility for specific hydraulic applications.

With SAE Code 61 flange connections, configurable inlet and outlet orientations, and compatibility with a broad range of hydraulic fluids, HYDAC NFD Series filters provide a versatile, high-capacity solution for maintaining hydraulic system reliability and reducing unplanned downtime.

Key Features and Benefits

• Low-Pressure Performance: Rated for operating pressures up to 360 psi (25 bar), with flow capacities up to 450 gpm.
• Continuous Filtration: Duplex configuration with a ball-type diverter valve allows filter element replacement without shutting down the hydraulic system.
• High-Capacity Design: Large filtration area supports demanding industrial applications with high flow requirements.
• Durable Construction: Aluminum heads, housings, and lids with ductile iron elbows and manifolds provide dependable performance.
• Simplified Maintenance: Screw-on lids and standard vent and drain ports allow convenient servicing and filter element replacement.
• Flexible Installation: SAE DN 102 (4-inch) Code 61 flange connections and multiple inlet/outlet orientations accommodate different system configurations.
• Versatile Filtration Options: Available with multiple filter media and micron ratings to meet specific hydraulic cleanliness requirements.
• Condition Monitoring: Optional differential pressure clogging indicators help identify maintenance needs and support proactive servicing.
• Bypass Protection: Multiple bypass valve settings, including a no-bypass option, accommodate different operating 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 NFD Series In-Tank / Inline Duplex Industrial Filters are ideal for hydraulic systems used in agricultural equipment, automotive manufacturing, construction machinery, gearboxes, industrial equipment, offshore operations, power generation, and pulp and paper processing. Their continuous filtration capability makes them particularly well-suited for applications where minimizing downtime and maintaining uninterrupted hydraulic system operation are critical.

Downloads:

HYDAC In-Tank/Inline Duplex Industrial Filter NFD Series Data Sheet