The hydraulic oil has the advantage over water that it does not corrode the internal components of the circuits in which the oil works, allowing it to transmit great power, with actuators whose dimensions are smaller than their pneumatic or electrical.
Oil hydraulic circuits normally work with high pressures unlike hydraulic circuits with water or pneumatic circuits, so it is very important to know the risks to which you are exposed.
Thus, hydro-pneumatic bladder accumulators emerged, offering a wide range of applications, such as power reserve, safety reserve, suspension, impulse damping and noise, highlighting their use in industries such as , aerospace, nuclear or weapons.