Why can hydraulic fluid under pressure be dangerous?

Hydraulic fluid under pressure poses a significant danger primarily because the pressure can be released suddenly, leading to potentially serious injuries. When hydraulic fluid is under high pressure, it is stored energy that, if released suddenly, can result in vigorous fluid ejection. This can happen through failure of hoses, fittings, or components. The fast-moving fluid can cause lacerations, puncture wounds, or even propel objects with significant force, increasing the risk of accidents in the surrounding area.

Additionally, the pressurized fluid can also create hazardous situations such as spray that could contact the skin or eyes, resulting in chemical burns or other injuries. Therefore, understanding and respecting the hazards associated with hydraulic systems and their high-pressure fluids is crucial for safety in environments where they are used.