![Sperrventile für Mobilkrane](https://www.wessel-hydraulik.de/wp-content/uploads/Bilder-Front.jpg)
The 2/2 directional control valve is used to connect or disconnect two hydraulic lines. It is a pilot-operated valve designed for high pressures and volume flows and is thus suitable above all for mobile applications. In many hydraulic applications, high return pressures cause unnecessary energy losses or even performance losses. An additional direct relief to the tank by means of a 2/2 directional control valve can significantly reduce these losses. 2/2 directional control valves are used, for example, in hydraulic excavators to connect the return lines of hydraulic tools directly to the tank, bypassing the main control valve. When operating hydraulic hammers, this is often necessary to achieve proper operation of the tool. In other applications, such as shear operation, a significant increase in performance can be achieved.
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