What ensures the proper operation and safety of hydraulic sealing in high-pressure systems?

The use of backup rings is essential in ensuring the proper operation and safety of hydraulic sealing in high-pressure systems. Backup rings serve to support O-rings or other sealing elements by preventing them from extruding or being displaced under high pressure. When hydraulic systems operate at elevated pressures, the sealing elements can be subjected to significant forces that may cause deformation or failure. Backup rings, which are made from materials that are resistant to pressure and wear, help maintain the integrity of the primary seal by providing additional structural support.

By effectively preventing the displacement of O-rings, backup rings contribute to a reliable seal, reducing the risk of leaks that could compromise system performance and safety. Their role in high-pressure applications is crucial as they help maintain the consistent and effective sealing necessary to handle the dynamic forces present in hydraulic machinery.

The other options, while relevant to the overall context of sealing in hydraulic systems, do not directly address the specific challenges posed by high pressure that backup rings are designed to mitigate.