Filters

Type "D" pressure line elements are used in the filters series DF, DFF, DFG, DFP, DFZ, DFDK, LF, MDF

• Filtration: 1µm to 20µm
• Filter Sizes: 0030 to 1500
• Collapse stability: 20 bar (BN4HC), 210 bar (BH4HC)
• Without bypass valve as standard

HYDAC "D" Type pressure line filter elements offer high-efficiency absolute filtration (3µm to 20µm), exceptional dirt-holding capacity, and robust collapse stability (up to 210 bar), making them ideal for high-pressure applications requiring reliable contamination control and low pressure drop.

Please note that there has been a conversion from Betamicron® (BN4HC / BH4HC) to Optimicron® (ON)  

The HYDAC Tank Breather Dryer BDE protects hydraulic systems from moisture and contaminants, with airflow up to 5,500 l/min and a dual-desiccant system. It features a visual saturation indicator, optional valves for downtime protection, and operates in -30 °C to +100 °C.

Key Features:

• Air flow up to 5,500 l/min
• Fastening by means of flange, thread, or slip fit connection
• Installation sizes: 200, 400, 1000

The HYDAC Inline Pressure Filters DF series is built for high-pressure hydraulic systems, offering reliable filtration performance with pressure capacities up to 420 bar and flow rates up to 2,000 l/min. Designed to meet international standards, these filters are ideal for protecting sensitive components in demanding applications.

Key Features:

• Flow rates up to 2000 l/min
• Nominal Pressure levels up to 420 bar
• Connections: G½ to SAE DN 80
• Installation sizes: 30, 60, 110, 140, 160, 240, 280, 330, 500, 660, 990, 1320, 1500, 2000, 3000, 4000

HYDAC Welded Inline Filters RFL are heavy-duty filtration solutions designed for hydraulic systems with flow rates up to 15,000 l/min and pressures up to 16 bar. Featuring robust welded housings, bolt-on cover plates, and integrated stands, these filters ensure reliable contaminant removal and easy maintenance in demanding industrial applications.

Key Features:

• Robust Welded Housing: Durable two-piece design with bolt-on cover plate for secure sealing
• High Flow Capacity: Supports up to 15,000 l/min with pressure ratings up to 16 bar
• Integrated Connections: Includes venting, draining, and clogging indicator ports for safe, efficient operation

HYDAC RF Return Line Filters are robust and efficient filtration solutions engineered for hydraulic systems with flow rates up to 15,000 l/min and pressure levels up to 25 bar. Designed for flexible installation options, these filters ensure effective removal of contaminants, extending system life and reducing maintenance demands.

Key Features:

• Installation sizes: 30, 60, 110, 160, 240, 330, 450, 580, 660, 950, 1300, 2500, 4000, 5200, 6500, 7800, 15000
• Connections: G½ to DIN DN 300
• Connection for a clogging filter 

HYDAC Clogging Indicators provide reliable visual and/or electrical signals when filter elements need replacement due to rising contamination and pressure loss. Available with dynamic or differential pressure detection and a range of response settings, they help ensure system safety and efficient filter use. Easy to install on standard filters, they eliminate guesswork and reduce unnecessary maintenance costs.

Key Features:

• Indicator of dynamic or differential pressure
• Optical, electrical or electronic signal
• Wide different of response pressures

HYDAC "R" type return line filter elements, featuring multi-layered Betamicron® BN4HC glass fiber media, offer reliable filtration from 1 µm to 20 µm with collapse stability up to 20 bar, ensuring high contamination retention and flow efficiency in hydraulic systems operating between -30 °C and +100 °C.

Key Features:

• Filtration: 1 µm to 20 µm
• Filter Size: 30 to 2600
• Collapse stability: up to 20 bar

"R" type elements are used in return line filters, e.g. in the series RF, RFD, RFM, RFL, RFLD, RFM, NF, NFD.

The HYDAC Tank Breather Filters BF offer reliable protection against airborne contaminants with airflow up to 15,000 l/min and a wide range of connection sizes. Designed for flexibility, they feature built-in or exchangeable elements, optional oil mist traps, and are compatible with ISO 2943 hydraulic fluids.

Key Features:

• Air flow up to 15000 l/min (with Dp=0.01 bar)
• Connections: G¼ to DN 125
• Installation sizes: 4, 10, 3, 30, 7, 72, 5, 52, 8, 9

HYDAC Suction Filters SF provide reliable filtration for hydraulic systems, handling flow rates up to 330 l/min and temperatures ranging from -10 °C to +100 °C. Built with an aluminium housing and bolt-on cover plate, they feature a standard bypass valve, clogging indicator connection, and compatibility with various hydraulic fluids, ensuring efficient contaminant control and system protection.

Key Features:

• Flow rates up to 330 l/min
• Temperature range -10 °C to +100 °C
• Connections: G¾ to SAE DN 50

HYDAC DFN and LFN inline pressure filters are designed for reliable contamination control in hydraulic systems, built to meet DIN 24550 standards. The DFN series supports high-pressure applications up to 400 bar, while the LFN is ideal for lower-pressure systems up to 100 bar.

Key Features:

• Flow rates up to 400 l/min and pressure levels up to 400 bar (DFN) or 100 bar (LFN)
• Robust two-piece design with optional bypass valve and clogging indicator port
• Compatible with ISO 2943 fluids; filter elements validated to ISO standards

HYDAC Cast Inline Filters RFL deliver robust filtration for hydraulic systems with flow rates up to 1,300 l/min and pressure ratings up to 40 bar. Featuring a durable two-piece cast housing with bolt-on cover plate, these filters provide reliable contaminant removal and easy maintenance in demanding environments.

Key Features:

• Flow rates up to 1300 l/min
• Pressure levels up to 40 bar
• Comprehensive connections - equipped with venting, draining, and clogging indicator ports

HYDAC RFD Change-Over Return Line Filters are engineered for continuous, uninterrupted filtration in hydraulic systems with flow rates up to 1,300 l/min and pressure levels up to 25 bar. Featuring a dual-housing design with a ball-type selector valve, these filters allow for seamless change-over between elements, ensuring maximum uptime and protection against contamination.

Key Features:

• Flow rates up to 1300 l/min
• Nominal Pressure levels up to 25 bar
• Connections: G¾ to SAE DN 100