Innovative new LoadMatch valve technology from Sun Hydraulics reduces unnecessary energy consumption by reacting to operating conditions. Available in atmospherically vented, 3 port non-vented, or 4 port vented models, these self-setting counterbalance valves also combine reverse free flow, load and thermal relief in one package.
The patent-pending LoadMatch control allows the setting of the valve to dynamically adjust in response to load pressure, while still providing a fixed thermal relief setting. The control creates a dynamic setting that is lower than the thermal relief setting, but is never more than necessary, thus providing safe, reliable load control. Also, since the dynamic setting is lower than the thermal relief setting, the pilot pressure required to open the valve is typically lower than other load control valves with similar thermal relief settings. The check allows free flow from the directional valve (port 2) to the load (port 1), while a direct acting pilot function self-adjusts to set at approximately 1,3 times the load induced pressure up to the thermal relief setting.
The valves have positive seals between all ports and incorporate the Sun floating style construction to minimise the possibility of internal parts binding due to excessive installation torque or cavity/cartridge machining variation. Corrosion resistant models are available.
One valve model can fit many applications. All 3-port counterbalance, load control, and pilot-to-open check cartridges are physically interchangeable as they have the same flow path and same cavity for a given frame size. The maximum intermittent operating pressure is 420 bar.
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