Complete with quick couplings
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Hydraulic directional control valves complete with quick couplings – Ready-to-use connection kits
Hydraulic directional control valves equipped with an integrated set of quick couplings are a dedicated solution for systems requiring efficient operation of working equipment. This design allows for immediate tool connection without the need for assembly tools to seal threaded connections. Such a solution reduces the risk of hydraulic oil contamination and shortens machine downtime. These kits are optimized for work in agriculture, forestry, and mobile hydraulic power systems.
Application and technical characteristics
The offered directional control valves are designed to control the flow of the medium in hydraulic systems with a working pressure of up to 250 bar. The use of ISO A or screw-type quick couplings ensures connection tightness even in harsh environmental conditions typical of off-road machine operation. The control valve bodies are made of high-grade cast iron, which provides dimensional stability when working with high oil flow. These components show high resistance to pressure spikes (shocks), which is important when controlling receivers with high inertia.
The devices are adapted to work with hydraulic oils with viscosity according to the DIN 51524 standard. Every element of the system, including hydraulic fittings, has been selected to minimize pressure drops at the connection point. The operating temperature range for standard seals is between -20°C and +80°C. Thanks to the use of precision control spools, the operator gains full control over the movement of the actuators while maintaining the internal tightness of the section.
To maintain high efficiency of the entire hydraulic system, we recommend regular monitoring of medium cleanliness and the use of professional measuring kits, which allow for precise diagnostics of system operation parameters. This helps avoid seizing of the control valve spools and damage to the quick coupling sockets, which are the main threats to long-term hydraulic operation.
Why choose our components?
Our control kits are assembled considering the hydraulic compatibility of all components. By choosing our solution, you gain:
- High flow efficiency – we select the appropriate nominal diameters (DN) of quick couplings to avoid throttling the oil flow.
- Compatibility with agricultural equipment – we offer versions with the standard EURO quick couplings, allowing for quick installation without modifications.
- Connection safety – every configuration is verified for correct threads (BSP, metric) and tightness under pulse operating conditions.
- Time savings – you receive a ready-made block, which eliminates errors at the stage of assembling parts and seals.
Technical parameters of the kit
| Parameter | Value |
|---|---|
| Max working pressure | 250 bar |
| Material | High-strength gray cast iron |
| Connection standard | ISO A, EURO (according to specification) |
| Medium temperature | -20°C to +80°C |
Frequently Asked Questions (FAQ)
Are the quick couplings in the kit replaceable in case of failure? Yes, all quick couplings in our kits are mounted on standard threads. In case of mechanical damage to the socket or plug, they can be quickly replaced without interfering with the entire directional control valve block.
Can such a directional control valve work with single-acting cylinders? Yes, after appropriate configuration of the spool section, the control valve can handle single-and double-acting cylinders. For single-acting cylinders, the free port should be protected against contamination.
How are the main causes of leaks in quick couplings? The most common cause is solid contamination (filings, sand) on the faces of the quick couplings before connecting them or degradation of O-ring seals due to improper operating temperature. Regular cleaning of the couplings is essential to maintain their tightness.