10.1.1 Fluid systems shall be constructed and
arranged so as to assure a safe and adequate flow of fluid at a prescribed
flow rate and pressure under all conditions of craft operation. The
probability of a failure or a leakage in any one fluid system, causing
damage to the electrical system, a fire or an explosion hazard shall
be extremely remote. Attention shall be directed to the avoidance
of impingement of flammable liquid on hot surfaces in the event of
leakage or fracture of the pipe.
10.1.2 The maximum allowable working pressure
in any part of the fluid system shall not be greater than the design
pressure, having regard to the allowable stresses in the materials.
Where the maximum allowable working pressure of a system component,
such as a valve or a fitting, is less than that computed for the pipe
or tubing, the system pressure shall be limited to the lowest of the
component maximum allowable working pressures. Every system which
may be exposed to pressures higher than the system's maximum allowable
working pressure shall be safeguarded by appropriate relief devices.
10.1.3 Tanks and piping shall be pressure-tested
to a pressure that will assure a safety margin in excess of the working
pressure of the item. The test on any storage tank or reservoir shall
take into account any possible static head in the overflow condition
and the dynamic forces arising from craft motions.
10.1.4 Materials used in piping systems shall
be compatible with the fluid conveyed and selected giving due regard
to the risk of fire. Non-metallic piping material may be permitted
in certain systems provided the integrity of the hull and watertight
decks and bulkheads is maintained.footnote