Hydraulic Valves

Hydraulic valves – The control unit of every tail gate and lift gate

Hydraulic valves are among the central components of every modern tail gate. They precisely regulate the flow of hydraulic fluid and control all lifting, lowering, and tilting movements of the platform. In truck lift gates, they manage accurate pressure distribution and ensure smooth, even movement. Whether in daily fleet operation, workshop use, or individual applications – reliable hydraulic valves stand for safety, efficiency, and consistent performance throughout the system. In intensive transport operations, it is crucial to rely on components that perform reliably even under heavy load. SULEJ Ladebordwand uses certified original parts from leading manufacturers – durable, precise, and designed for continuous professional use.

Function and technical diversity – What hydraulic valves do

The hydraulic valve plays a central control role in the hydraulic system of a tail gate or lift gate. By selectively switching, metering, and blocking the oil flow, it enables precise cylinder movements – such as lifting, lowering, closing, or tilting the platform. This ensures all movements work harmoniously together, allowing the platform to operate smoothly and safely. High-quality hydraulic valves are made from durable materials and pressure-resistant alloys. Precisely manufactured valve seats, pistons, and sealing systems ensure long-lasting tightness, quick response times, and reliable performance – even under pressure fluctuations and temperature changes. The combination of precision, material quality, and switching speed makes hydraulic valves the connecting element between pump, cylinder, and control unit – the functional core of any powerful hydraulic system.

From pressure relief valves to directional valves – Diversity with purpose

Solenoid valves: electrically controlled valves designed for fast and precise switching operations. They control hydraulic oil flow exactly and ensure rapid platform response.

Directional valves: regulate the flow direction of the oil and determine whether the platform lifts, lowers, or tilts. They form the foundation for controlled and consistent motion.

Pressure relief and overpressure valves: protect the system from overload by automatically redirecting oil flow when pressure becomes too high, preventing damage to cylinders, lines, and seals.

Check and flow control valves: ensure a consistent oil flow and prevent uncontrolled platform lowering. They also allow smooth, finely tuned movements even under variable loads.

Cartridge valves (single- or double-acting): provide precise cylinder control in compact systems. Integrated directly into valve blocks, they enable a space-saving and service-friendly design.

All valve types are designed for easy integration into existing hydraulic systems and deliver reliable performance under real working conditions – whether in distribution transport, workshops, or specialized lifting and tilting mechanisms.

Hydraulic check-up – Maintenance and inspection of lift gate systems

To maintain full performance under continuous load, hydraulic valves require regular maintenance. Valves, lines, and seals should be checked at set intervals for leaks, deposits, and wear. Even small leaks or dirt particles in the hydraulic system can disturb pressure balance and compromise operational safety. Scheduled maintenance and timely replacement of worn parts prevent downtime and costly follow-up damage. Certified OEM-quality spare parts ensure your tail gate or lift gate hydraulic system remains efficient, safe, and low-maintenance over time.

Performance in motion – Precision and safety for every tail gate

Hydraulic valves are safety-critical components exposed to heavy loads in daily operation. Only precisely manufactured and tested parts ensure reliable, long-term function – whether in commercial fleets, construction vehicles, or distribution operations. At SULEJ Ladebordwand, we emphasize selecting spare parts manufactured to the highest quality standards and tested for tightness, switching precision, and pressure resistance. Professional users benefit from modular compatibility and a wide range of parts, while private users appreciate easy handling and long service life. The result: hydraulic systems that operate precisely, reduce downtime, and ensure lasting safety of your loading equipment.

The advantages of high-quality hydraulic valves at a glance

• Precise control of all tail gate and lift gate functions
• High pressure and leakage safety through tested materials and exact manufacturing
• Perfect-fit spare parts for various hydraulic systems and manufacturers
• Durable construction with minimal maintenance requirements in daily use
• Cost-efficient operation through reduced downtime and wear
• Reliable function under heavy loads and changing conditions

Frequently asked questions about hydraulic valves for tail gates and lift gates (FAQ)

How can I recognize a defective hydraulic valve?

Typical signs include delayed or uncontrolled platform movements, visible leaks at fittings or housings, pressure loss, or unusual noises during operation.

What are the differences between valve types in lift gate systems?

Directional valves control the oil flow direction, pressure relief valves protect the system from overload, and solenoid valves enable electronic control operations. Depending on the design and use of the tail gate, different valve types are installed.

How often should hydraulic valves be serviced?

At least once a year – in demanding conditions, frequent ramp use, or harsh environments, shorter intervals are recommended. During service, seals, connections, and switch functions should be checked thoroughly.

Are hydraulic valves universal?

No – not all valves are interchangeable. Many models are designed specifically for the hydraulic system or manufacturer of the tail gate. Always check compatibility and specifications before replacing a valve.

What are the advantages of certified original spare parts?

They are perfectly matched to the system, ensure maximum reliability, pressure stability, and long service life – key to safety, efficiency, and dependable daily operation.