Valves

The HYDAC 4WE 6 series is a direct-acting, solenoid-operated directional spool valve available in 4/2 and 4/3 versions. Suitable for hydraulic systems up to 80 l/min and 350 bar, it ensures reliable switching of flow paths using an oil-immersed solenoid.

Key Features:

• Interface according to DIN 24340 Form A6 and ISO 4401-03
• 360° rotatable coil and multiple electrical connection options
• Removable coil without opening the hydraulic system; optional zinc-nickel corrosion protection

This hydraulic valve offers excellent switching performance thanks to a high-power HYDAC solenoid, supported by protective coil seals for long-term reliability. Its compact design allows for space-saving installation, while zinc-nickel plated surfaces enhance durability under high-pressure conditions up to 350 bar.

Key Features:

• High switching performance with leakage-free operation (≤ 5 drops/min at 350 bar)
• Space-saving, compact design with robust zinc-nickel surface coating
• Wide operating temperature range (-20 °C to +100 °C) and long service life (MTTFd: up to 1200 years)

The HYDAC 4WMH series consists of mechanically operated 4/2 and 4/3 directional spool valves designed for precise control of oil flow in hydraulic systems. Operated via a hand lever, the valve manually shifts the spool to achieve the desired flow path.

Key Features:

• Manual lever operation for reliable, power-free flow control
• Rugged design suitable for demanding industrial environments
• Smooth and precise spool movement for accurate flow direction control

This high-performance hydraulic valve is engineered for durability, efficiency, and compact integration into demanding control systems. Featuring corrosion-resistant materials and a CFD-optimised flow path, it delivers stable operation across a wide flow range with minimal wear.

Key Features: 

• Coil seals and zinc-plated surfaces for corrosion protection and long service life
• Optimised flow design for low pressure drop and high efficiency
• Compact, space-saving design suitable for tight installation environments

The HYDAC 4WEH 10 to 32 series are pilot-operated 4/2 and 4/3 directional spool valves designed for high-flow hydraulic systems. Operated electro-hydraulically via an NG 06 pilot valve, they control flow paths smoothly at rates from 150 to 1000 l/min.

Key Features:

• Pilot supply and drain can be configured as internal or external by changing plugs
• Standard ISO 4401 interface allows easy interchangeability
• Available with a wide variety of spool types and control options

This compact hydraulic valve offers reliable switching performance and long service life in demanding environments. It features corrosion-resistant surfaces, low pressure drop, and minimal wear thanks to precision-ground components.

Key Features:

• Zinc-plated, corrosion-proof housing and sealed coil
• CFD-optimized flow path for low pressure drop
• High-performance HYDAC solenoid with multiple connector options

HYDAC’s P4WE series 4/2 and 4/3 proportional directional valves offer precise control of actuator direction and speed. With high flow capacity and low hysteresis, they ensure efficient, responsive hydraulic performance.

Key Features:

• High flow capacity through optimized cast housing
• Ultra-fine machining for low hysteresis and precise control
• ISO 4401 interface for easy, standardized installation

Compact and durable, this HYDAC solenoid valve is designed for high-pressure hydraulic systems with excellent switching performance and long service life. It supports flows up to 19 l/min at 350 bar, making it ideal for precision control in demanding environments.

Key Features:

• Maximum operating pressure: 350 bar
• Nominal flow rate: Up to 19 l/min
• Internal leakage: Max. 90 cm³/min at 250 bar and 34 mm²/s

This HYDAC R-type solenoid valve is a compact, high-pressure 4/2 directional valve that enables bidirectional flow between ports when energized, and securely closes all ports when de-energized. Designed for up to 350 bar and 25 l/min, it offers reliable performance in space-constrained hydraulic systems.

Key Features:

• Operating pressure: Up to 350 bar
• Nominal flow rate: Max. 25 l/min
• Internal leakage: Max. 150 cm³/min at 250 bar

This HYDAC solenoid valve is a robust, high-performance unit designed for pressures up to 350 bar and flows up to 23 l/min. With sealed electronics, corrosion-resistant materials, and no orientation restrictions, it's ideal for demanding hydraulic systems where reliability and flexibility are essential.

Key Features:

• Max. operating pressure: 350 bar
• Nominal flow rate: Up to 23 l/min
• Wide fluid compatibility: Operates from -20°C to +100°C with standard NBR or optional FKM seals