
3 ports, non-vented, standard
The LoadAdaptive load holding valves, developed by Sun Hydraulics, are advanced and innovative solutions designed to maintain stability while significantly reducing energy consumption. By replacing conventional load holding valves with LoadAdaptive, systems can achieve an average energy savings of 30%, without compromising stability or performance—a challenge that has historically been difficult to overcome. These valves optimize load control and pressure management through a variable pilot ratio, resulting in efficient operation and extended system lifespan.

3 ports, non-vented, standard

3 ports, non-vented, semi-restrictive

3 ports, non-vented, restrictive
A standard load holding valve always involves a compromise between stability and efficiency. High pilot ratios are selected for optimal efficiency, while low pilot ratios are prioritized for stable operation. Since machines rarely operate at maximum load-induced pressure, this results in unnecessary energy consumption when lowering a light or non-existent load. This happens because load-induced pressure naturally helps open the valve, but in its absence, a higher pilot pressure is required, leading to increased energy usage. The LoadAdaptive series reduces energy consumption by automatically adjusting the pilot ratio, optimizing system operation and making hydraulics more energy-efficient.
The LoadAdaptive load holding valve is the ideal choice when energy and fuel consumption must be kept low and the machine operates on an intensive lift-lower-lift duty cycle. It is particularly well-suited for applications with high operating frequency and variable loads, where stability and efficiency are critical. Additionally, the valve contributes to lower noise levels, smoother RPMs, and an improved work environment, making it especially beneficial for electric or hybrid vehicles. In applications with runaway loads, where the load can change rapidly and unpredictably, LoadAdaptive ensures controlled and smooth motion for maximum safety and performance.
A standard load holding valve can easily be replaced with a LoadAdaptive, which is adjusted to the same pressure setting. LoadAdaptive never compromises stability while simultaneously reducing energy consumption, thanks to its variable pilot ratio, which automatically adjusts to the load.
In systems with variable flow, LoadMatch is a better option than LoadAdaptive. Its unique seat design enables a smoother and more controlled lowering movement, effectively eliminating oscillations and jerky motions. A LoadMatch valve requires no manual adjustment—it senses the load and automatically adjusts itself, making it extra secure. Since the valve lacks an adjustment screw, unauthorized modifications are impossible, further enhancing safety and operational reliability.
There are many valve options available, and we’re happy to help you find the optimal solution for your system. Contact us, and we’ll guide you in the right direction!



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