Hydac Hydraulics

Hydraulics

Hydac International is one of the world's leading manufacturers of hydraulic components, with operating pressures up to 500 bar, flow rates from 0.5 to 1,000 l/min, and filtration ratings down to 3 μm absolute (Beta‑ratio ≥200 per ISO 16889). From axial-piston pumps and proportional directional control valves to high-pressure bladder accumulators and real-time fluid sensors, Hydac components are engineered and tested to DIN EN ISO 4413, ISO 10771, and EC Machinery Directive 2006/42/EC.

fluidics-equipment.com stocks 759 Hydac products across 10 product families - control blocks, sensors, filtration, pumps, valves, heat exchangers, measuring instruments, fastenings, pump carriers, and ball valves - giving maintenance engineers and OEM procurement teams a single source for verified Hydac originals with full traceability.

Hydac control blocks, housings Manifold blocks up to 350 bar, D03/D05 porting patterns, aluminium & steel Hydac Fastenings Pipe clamps, SAE flange mounts, DIN 3015 series, 6-50 mm tube OD range Hydac Measuring Instruments HMG / ELM / FCU series, pressure to 1,000 bar, particle counters ISO 4406 Hydac Sensors HDA / HSI / EDS series, 0-600 bar, 4-20 mA & IO-Link, IP67/IP69K Hydac pump carrier Bell-housing units SAE A/B/C, motor flanges up to 315 kW, rigid & flexible couplings Hydac heat exchanger, cooler Air-oil & water-oil coolers, HKL/PKL/OKL series, cooling capacity to 800 kW Hydac Valves/Ball Valves Full-bore ball valves DN6-DN50, up to 500 bar, BSP/NPT/SAE ports, stainless option Hydac Filtration and Care Return-line, pressure & off-line filters, 3-25 μm, up to 500 bar, ISO 16889 Hydac Valves Directional, pressure-relief & proportional valves, NG4-NG32, up to 420 bar Hydac Pumps Gear & axial-piston pumps, 0.5-250 cm³/rev, up to 350 bar continuous pressure

Key technical advantages - Hydac Hydraulik at a glance

⚡ Up to 500 bar - rated operating pressure across valves, ball valves, and fittings

🔍 3 μm filtration - absolute filter ratings per ISO 16889, Beta-ratio ≥200

🛠 759 products - pumps, sensors, coolers, manifolds - single-source Hydac originals

⚙ NG4 to NG32 - full valve size range, D03/D05 subplate and cartridge patterns

📈 0-600 bar sensing - HDA/EDS pressure sensors, 4-20 mA & IO-Link, IP69K

✓ ISO 4413 / ISO 16889 - hydraulic safety and filtration performance standards

Hydac vs. Bosch Rexroth vs. Parker Hannifin vs. Eaton - technical comparison

Criterion	Hydac	Bosch Rexroth	Parker Hannifin	Eaton Vickers
Max. operating pressure	up to 500 bar	up to 420 bar	up to 414 bar	up to 350 bar
Integrated filtration portfolio	Full range, 3-25 μm, ISO 16889	Limited own-brand filters	Finite/Velcon range	Internormen (separate brand)
Condition monitoring sensors	HDA/EDS/FCU, 0-600 bar, IO-Link	HM series, up to 600 bar	SCP series, up to 400 bar	AxisPro, limited IO-Link
Heat exchanger / cooling	HKL/PKL/OKL, up to ca. 800 kW	Via Aventics / third party	Caldie/AirBlast series	Limited cooler portfolio
Valve sizes (NG)	NG4 - NG32, D03/D05	NG4 - NG32, D03/D05	D03 - D10	D03 - D08
Pump technology	Gear + axial-piston, 0.5-250 cm³/rev	Axial-piston, vane, gear	Vane, piston, gear	Vane + piston primary
Norm compliance	ISO 4413, ISO 16889, 2006/42/EC	ISO 4413, CE, ATEX	ISO 4413, SAE, CE	ISO 4413, NFPA, CE
System integration depth	Full HPU system, sensors to filtration	Full drive & control systems	Motion & control systems	Power management focus

Hydac product overview - key series and specifications

Product family	Key series	Performance / spec	Highlight
Pumps	PGF / ALP / HDP	0.5-250 cm³/rev, up to 350 bar	Gear & axial-piston, SAE-A/B/C flange
Valves	WGVP / WGVE / KPRE	NG4-NG32, up to 420 bar, 0-450 l/min	Proportional, pressure-relief, directional
Filtration	RFM / HF / DF series	3-25 μm, up to 500 bar, to 1,000 l/min	ISO 16889 Beta ≥200, clog indicators
Sensors	HDA / EDS / HSI	0-600 bar, 4-20 mA / IO-Link, IP67/IP69K	Temperature, pressure, level, flow
Heat exchangers	HKL / PKL / OKL	Cooling capacity up to ca. 800 kW	Air-oil, water-oil, brazed-plate types
Measuring instruments	HMG / ELM / FCU	Pressure to 1,000 bar, particle count ISO 4406	Portable diagnostic units, data logging
Valves/Ball valves	KHM / KHP / KHRM	DN6-DN50, up to 500 bar, BSP/NPT/SAE	Full-bore, stainless steel option available
Control blocks	MSB / VB series	Up to 350 bar, D03/D05 porting	Aluminium & steel, custom manifolds

Typical application areas: Mobile hydraulics and construction machinery (ISO 4413, DIN EN ISO 4413), industrial press and forming technology (2006/42/EC, EN 13849), offshore and marine hydraulics (DNV GL, ISO 10771), power generation and wind turbines (IEC 61400, ISO 4413), automotive manufacturing and assembly lines (ISO 9001, IATF 16949), steel and heavy industry (DIN EN ISO 4413), agriculture and forestry machinery (EN ISO 11684), and fluid power test rigs and laboratory systems (ISO 4406, ISO 16889).

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Verified Hydac originals 759 products - pumps, valves, sensors, filtration, coolers - fully traceable

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