10.5.1 Where
valves, which are required by the Rules to be capable of being closed
from outside a machinery space, have pneumatic closing arrangements,
a dedicated air receiver is to be fitted to supply compressed air
to the valves. This air receiver is to be located outside the machinery
space.
10.5.2 The
air receiver is to be maintained fully charged from the main LP air
system via a non-return valve located at the air receiver inlet which
is to be locked in the open position.
10.5.3 In the
case of passenger ships, a permanently attached hand-operated air
compressor capable of charging the air receiver is to be provided
in the space in which the air receiver is located.
10.5.4 The
capacity of the air receiver is to be sufficient to operate all valves
and any other essential supplies such as ventilation flaps without
replenishment.
10.5.5 The
pneumatic pilot pipes running through the machinery space to the relevant
control mechanism of the valves are to be of steel.