Typical components of an LPG installation on a yacht
Gas bottles & storage
The gas bottles along with regulator, electronic solenoid and
gas leak detectors should be located in a special locker that
vents overboard. The locker should not allow escaped gas to flow
into the bilge or cabin, therefore any gas pipework or cable runs
that go through the locker wall should be sealed with an appropriate
glad or wall fitting. In the UK, Propane and Butane come in various
size bottles each with a different style of connector and regulator.
For sailing yachts the Campingaz butane bottles are most common.
They are small, readily available in the UK & on the continent.
The combined regulator and On/Off valve screws on top of the cylinder.
In larger format butane and propane bottles the cylinder has
its own integrated On/Off valve, the regulator either clips or
screws onto the On/Off valve. A full bottle can be very heavy
and thoguht must be given for securing the bottle within the locker.
Gas leak detectors
Bubble type gas leak detectors are designed to be connected close
to the outlet side of the gas regulator. It provides an instant
visible check for leaks. With the gas supply on and all appliances
switched off, the red button above the sight glass is depressed
for around 10 seconds, any bubbles showing after the initial 2
or 3 seconds will indicate a leak. This simple, quick test can
be performed at the start of each trip or even each time the gas
supply is switched on.
Flexible hose & piping
Flexible hosing at the bottle end and on the appliance must each
be less than 1m in length (BS3212 type 2). Braided hose is recommended
for connections to cookers on gimbals as the braid protects the
hose during the swinging movement of the cooker. Copper pipework
should be fitted for the remaining supply secured with pipe clips
spaced every 150mm. Where the pipework goes through bulkheads
or partitions then plastic sleeves or grommits should protect
the pipe from abrasion. A manual isolation tap should be fitted
before the hose connection and appliance.