Hydraulic control valves for open-center systems 160 l/min

Hydraulic control valves with a nominal flow of 160 l/min are designed to support high-flow power hydraulic systems, where it is necessary to maintain an appropriate balance between pump efficiency and the operating speed of heavily loaded actuators. The sectional design allows for flexible system configuration by adding further working modules, enabling independent control of multiple cylinders or hydraulic motors within a single machine. These devices are suitable for operation in systems with constant displacement pumps, handling medium flows in Open Center systems. Precise manufacturing of the control spools minimizes pressure losses and uncontrolled internal leakage, which translates into high energy efficiency of the system.

Application and technical characteristics

These components are used in agricultural, forestry, construction machinery, and stationary industrial equipment where precise operation with very high oil flows is required. The devices are designed to operate with a working pressure of up to 250 bar, allowing for safe operation in most medium-pressure and high-pressure applications. The bodies, made of high-quality ductile iron, show high resistance to pressure spikes and material fatigue during intensive work. The components are fully compatible with hydraulic oils meeting the requirements of DIN 51524 (types HL, HLP), while maintaining an operating medium temperature range from -20°C to +80°C.

To ensure proper control over operating parameters, we recommend using solutions from the pressure gauges and measurement kits group, which allow for constant monitoring of system pressure. A secure and tight connection between the valve and the actuators requires the use of hoses with appropriate capacity and strength, such as 4SP hydraulic hoses, guaranteeing stable operation even under variable loads. In applications requiring remote control, especially in mobile machinery, the optimal technical choice is cable-operated hydraulic control valves, which significantly improve the operator's ergonomics and work safety.

Why choose our components?

• Hydraulic stability: The integrated relief valve protects the system from exceeding the rated pressure, preventing pump failures and hose leaks.
• Modularity of construction: The ability to freely configure the number of working sections ensures easy adaptation of the valve to modernized machines or those built from scratch.
• High manufacturing precision: Dimensional tolerances of the spools at the micron level ensure smooth flow regulation and minimize the risk of actuator "jerking".
• Material resistance: The high-quality cast body guarantees structural rigidity, which eliminates the risk of housing deformation under maximum load operation.

Technical specification table

Frequently Asked Questions (FAQ)

1. Can a 160 l/min control valve work with a pump of lower flow capacity?
Yes, this control valve can be used in systems with pumps of lower flow capacity; however, remember to properly set the relief valve to avoid unnecessary energy loss due to flow through the valve.

2. What should be considered when installing sections with pilot-operated check valves (hydraulic locks)?
When installing hydraulic locks, ensure the tightness of the connections between the control valve and the lock. Locks are required in systems where it is necessary to hold the actuator in a given position with the valve in neutral.

3. Jakie są główne różnice w obsłudze suwaków w zależności od ich typu?
Spools differ in the way ports are connected in the neutral position. Type "A" spools block flow to the actuator, whereas type "B" spools connect both working ports back to the tank, which is important when controlling hydraulic motors.