Leopard Catamarans 40 - 2-13.1 Liquefied Petroleum Gas System (LPG)

2-13 Gas System Operation | 53
2-13.1 LIQUEFIED PETROLEUM GAS
SYSTEM (LPG)
NOTE: In the interest of safety, it is
important that the properties of liqueed
petroleum gas (LPG) be understood, and
that safe practices for its use be followed.
It is also important that the difference in
properties between LPG and CNG be
compared to distinguish between these
two types of fuels and their respective
hazards.
LPGistwo-phased,i.e.,liquid/vapour,fuel
withahighercaloricvaluethanCNG,and
isstoredatalowercylinderpressurethan
CNG.
LPGisheavierthanairandwillfallorsettle
ifreleased.
LPG, in a natural state, is non-toxic and
invisible,butcandisplacetheairnecessary
tosustainlife.Bylaw,commerciallyavailable
LPGhasanodorousgasaddedtofacilitate
leakdetection.SinceLPGisatwo-phased
fuel, the odour concentration can vary
dependingonthevolumeoffuelremaining
inthecylinder.Followingareleaseofgas,
the delectability of the odorous gas can
dissipate,eventhoughtheconcentrationof
LPGgasmaybepresent.
ThepropertiesofLPGmustbeunderstood.
Itisagasatnormalroomtemperatureand
atmospheric pressure. Under moderate
pressureitliquees,vaporizingagainupon
release of the pressure. It is this property
thatpermitstheconvenienceoftransporting
and storing these hydrocarbons in
concentrated form, while normally using
theminavapourform.
Released from its liquid state, LPG gas
tendstosinktothebottomofanenclosed
compartment.Gasthatisdiffusedthroughout
thecompartmentisnotreadilydispelledby
overhead ventilation.
Thereisadrainventlocatedintheoorof
theCockpitGaslockertoallowanyLPGgas
that may have leaked from the cylinder to
owoutofthelocker.
UNDER NO CIRCUMSTANCES SHOULD
THIS DRAIN VENT BE BLOCKED OR
PLUGGED UP.
NEVER STORE ANY OTHER EQUIPMENT
IN THE GAS LOCKER
IF MIXED WITH AIR IN CERTAIN
PROPORTIONS, AND CONFINED, LPG
WILL EXPLODE IF IGNITED. IN ITS
GASEOUS FORM LPG PRESENTS A
FIRE AND EXPLOSION HAZARD.
DANGER
To avoid asphyxiation. Provide ventilation
when the stove is in use. Do not use for
space heating.
GasValveOn/OffSwitch&IndicatorLight