Question #692
Where are pilot-operated check valves, also called hydraulic locks, located?
Gdzie znajdują się zawory zwrotne sterowane (zamki)?
a
on the cylinders
na siłownikach
Correct answer
b
in the control panel
w pulpicie sterującym
c
at the pump
przy pompie
d
on flexible hoses
na wężach elastycznych
Why?
Hydraulic locks (zamki hydrauliczne) are mounted directly on cylinders to retain oil even if a supply hose bursts. A lock at the pump would not protect the cylinder against oil escaping through a damaged hose between them.