| 摘要 |
A distribution device for hydraulic circuits, comprises a main containing body (2) having at least a fluid inlet mouth (4) connected to a pump (P), a fluid outlet mouth (5) connectable to an actuator organ (C) and a fluid discharge mouth (6) associable to a discharge tank (7); a cursor (3) slidably inserted in the main body (2) and selectively mobile between at least a first position in which it allows passage of fluid from the pump (P) to the actuator organ (C) through the inlet mouth (4) in order to activate the actuator organ (C) and a second position in which it allows transit of the fluid from the pump (P) to the discharge tank (7) in order to halt the actuator organ (C); means for controlling (8) associated to the actuator organ (C) for detecting a pressure of the fluid acting in the actuator organ (C) and active on the cursor (2) in order to move it from the first position to the second position when a predetermined value of pressure of the fluid acting in the actuator organ (C) is exceeded.
|
