| 摘要 |
The invention relates to a hydraulic reversible valve for connecting agricultural devices having double-acting cylinders to existing tractors having single-acting hydro-valves and has two-way/four-way valves, of which one is a pilot control valve and the other a main control valve, and also a pressure-storage element, connected to the main control valve via a non-return valve, and several non-return valves.
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