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The accumulators have to contain high
hydraulic pressure without pressure loss or failure through numerous
pressure cycles (>½ million cycles).
- The cylinder walls have to be
resistant to both wear and corrosion to prevent pressure loss caused
by seal damage,
surface scoring and pitting, and wall cracking.
- Although fresh water is the standard
working fluid, the system is designed to use seawater in
emergency conditions and has to resist saline corrosion.
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