Flow up to 50L/min

6/2 hydraulic solenoid valves (24V, 50 l/min) – Precise sequential dividers

6/2 hydraulic solenoid valves with a nominal flow of up to 50 l/min and a control voltage of 24V DC are specialized distribution devices designed for advanced optimization of power hydraulic systems. These valves, referred to in engineering nomenclature as six-way, two-position spool valves, are used for trouble-free switching of hydraulic oil supply between two independent receivers (e.g., two double-acting cylinders) using an electrical signal. The implementation of such a solution eliminates the need to purchase and install additional mechanical sections, which significantly reduces the weight and dimensions of the entire control block. The 24V nominal coil voltage makes this product group ideal for use in demanding electrical installations of industrial, forestry, construction, and transport machinery.

Application and technical characteristics

6/2 solenoid valves with a capacity of up to 50 l/min are characterized by optimal hydraulic characteristics for systems with medium flow rates. The valve body, made of high-grade cast iron or surface-hardened steel, exhibits excellent resistance to fatigue stress and high operating pressures, reaching 210-315 bar under dynamic conditions. The internal spool undergoes a precision grinding and honed fitting process, which guarantees micro-gap tightness and minimizes internal oil leakage under full operating load.

These components are fully adapted to work with mineral hydraulic oils of HL and HLP classes, compliant with the rigorous guidelines of the ISO 6743/4 standard. The temperature of the working medium can range from -20°C to +80°C, allowing for stable operation both in winter conditions and in continuous operation mode with significant thermal load on the system. The technologically advanced 24V DC electromagnetic coils, mounted as standard with an ISO 4400 connector, meet the requirements of the IP65 protection class, isolating the electrical system from moisture, dust, and high-frequency vibrations.

The most important application areas for 6/2 24V 50 l/min solenoid valves:

• Construction machinery: Handling additional working functions, such as bucket tilt, powering attachment quick-couplers, or auxiliary arms in mini-excavators.
• Forestry machinery: Expanding the functionality of grapples, rotators, and felling heads, cooperating with elements such as directional control valves for forestry machinery.
• Municipal and specialized vehicles: Control systems for snow plows, salt spreaders, or hydraulic systems for lifts and loading platforms.
• Industrial hydraulic power units: Automation of repetitive technological cycles in production lines with compact machine assembly.

To prevent sudden blockage of the spool by external micro-factors, the technical priority is to maintain the appropriate oil cleanliness class. Every professional system should include a matching hydraulic filter with high particulate capture capacity.

Why choose our components? Technical benefit

All 6/2 24V 50 l/min valves available in the Hydron offer are manufactured based on ISO management standards, which guarantees dimensional and material repeatability. Hydraulic ports (most often internal BSP 3/8" or 1/2" inch threads) are cut in accordance with the ISO 228/1 standard, ensuring ease and reliability of threaded assembly. To ensure 100% hermetic connections at maximum operating pressures, it is recommended to use certified hydraulic fittings equipped with flexible sealing rings. 24V coils are characterized by optimized resistance and low power consumption, which minimizes the phenomenon of coil overheating during long-term operation (ED 100% duty cycle). An additional engineering advantage is the built-in pin for manual emergency override, which allows for mechanical change of the spool position in the event of a power failure.

Technical specification of 6/2 24V 50L solenoid valve

Frequently Asked Questions (FAQ)

1. What are the benefits of using a 24V coil instead of 12V in a solenoid valve with a flow of 50 l/min?
From the perspective of hydraulic parameters, both versions work the same. The most important difference concerns current parameters. A coil supplied with 24V voltage draws half the current (amperage) compared to a 12V coil while maintaining identical solenoid power. This translates into lower energy losses, reduced heat emission on power cables, and the possibility of using cables with a smaller cross-section, which is standard in truck and industrial machinery installations.

2. Will exceeding the pump output above 50 l/min affect the operation of the 6/2 valve?
Yes. The nominal flow of 50 l/min defines a safe structural limit. Forcing a higher flow generates a drastic increase in flow resistance, which leads to a significant pressure drop inside the valve. This results in a rapid increase in oil temperature, foaming of the medium, and generation of cavitation. Furthermore, high hydrodynamic forces acting on the spool can override the magnetic force of the 24V coil, making it impossible to maintain the spool stably in the selected working position.

3. When is it necessary to connect an external drain port in 6/2 solenoid valves?
External drainage is technically required in situations where the return line of the system generates constant or pulsating backpressure exceeding the permissible strength of the spool sealing chambers (most often above 25-50 bar). Connecting the drain port directly to the tank protects the spring chamber of the valve against excessive pressure increase, preventing seals from being pushed out and guaranteeing free, smooth movement of the spool during electrical control.

4. How to integrate a 6/2 24V solenoid valve with the main directional control valve in a machine?
The two input (supply) ports of the 6/2 solenoid valve should be connected directly using rigid precision pipes or flexible pressure hoses to the working outputs (A and B) of one of the sections of the main directional control valve. The four remaining output ports of the divider are connected in pairs to the two target working receivers. When the 24V coil is not receiving current, the oil flows by default to the first receiver. Applying an electrical signal shifts the spool and immediately redirects the oil flow to the supply lines of the second receiver.