Homework / test English to Spanish Tech/Engineering Petroleum Eng/Sci

Piston design

Often the piston systems in the hydraulic connectors of trees, jumpers,
tree caps, etc. are designed such that the area of the *lock side* of
the piston is less than that of *the unlock side* of the piston – on most
occasions, this is a deliberate design feature, in order to allow greater
force to be exerted (using the same pressure) when unlocking the
connector, versus locking it.
In some situations, this can be a contributing factor to particular types of
failure modes – see Elastomer suitability.