Why are O-rings typically used in hydraulic systems?

O-rings are primarily utilized in hydraulic systems for sealing applications, which is crucial for preventing leaks. In these systems, fluids are often under high pressure, and an effective seal is necessary to ensure that the hydraulic fluid remains contained within the equipment. This not only helps maintain the system's efficiency but also protects against contamination, which can lead to equipment failure or reduced performance.

The design of an O-ring, typically a circular loop of flexible material, allows it to deform slightly when compressed between two surfaces. This deformation creates a tight seal that can withstand the forces and pressures encountered in hydraulic systems. Their resilience and flexibility make them ideal for use in a variety of fittings and connections where reliable sealing is needed.

In hydraulic applications, if the O-ring fails or is improperly placed, it can lead to fluid leaks, system inefficiencies, and even equipment damage. Therefore, using O-rings effectively supports the operational integrity of hydraulic systems and is a fundamental aspect of their design and maintenance.