Hydraulic control valves up to 80 l/min – performance and control precision

This subcategory includes hydraulic control valves designed for operation in systems with a medium flow rate of up to 80 l/min. It is the equipment segment most frequently chosen by agricultural and construction machinery manufacturers, where an optimal balance between actuator dynamics and control block dimensions is required. Thanks to precisely fitted spools, these control valves offer excellent throttling characteristics, allowing for smooth operation of attachments even under full nominal load.

The units we offer are characterized by minimal pressure losses (so-called pressure drops), which directly translates into lower energy consumption and a lower operating temperature of the working medium. Combined with our hydraulic control valves of higher classes, these devices form the foundation of reliable installations. To ensure full control over operating parameters, we recommend monitoring pressure using our pressure gauges and measuring kits, and the stability of hydraulic connections is guaranteed by our certified industrial connectors.

Technical characteristics

Control valves with an 80 l/min flow limit are distinguished by high tolerance to pressure surges and the ability to work with various types of hydraulic pumps (gear, fixed displacement piston pumps). The use of high-grade seals allows for operation in a wide spectrum of temperatures, which is crucial for the operation of mobile machinery.

Key properties:

• Optimized internal hydraulics: Flow channels designed to reduce turbulence and cavitation at maximum flow.
• High pressure load capacity: Standard versions adapted for operation at pressures of 250–300 bar.
• Mounting versatility: Compatibility with various types of control sections (manual, electric, cable).
• Integrated safety valves: Possibility of precise relief valve adjustment directly in the valve body.

FAQ – Technical questions

1. What happens if the pump output exceeds 80 l/min?
Exceeding the nominal flow of 80 l/min will cause a disproportionate increase in pressure drops on the spools, leading to system "throttling", an increase in oil temperature, and potential seal damage.

2. Does this control valve work with hydraulic motors?
Yes, after using the appropriate spool (motor type, where in the neutral position ports A and B are connected to the T return), this control valve can smoothly control hydraulic motors in systems with a flow of up to 80 l/min.

3. How to choose connections for an 80 l/min control valve?
To avoid cavitation and pressure losses, the internal diameter of the supply lines must be selected according to the oil flow velocity. For 80 l/min, we recommend using lines with a suitably large nominal diameter.