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vetus®
Installation manual Generator Sets GHX / GLX
3.2 Fuel connection
3.2.1 Fuel Delivery System
IMPORTANT
Boating standards (CE-ABYC) and Coast Guard regulations must be adhered to when
installing fuel delivery system.
The main concern of a boat’s fuel system is safety; this must be achieved through a technically sound installation and
constant inspection.
The fuel system, from the filler pipe to the fuel pump is the same, in principle, for all boats.
The fuel tank is an integrated component of the boat.
Fuel tanks can be made of (stainless) steel or of plastic.
Steel tanks should not be galvanised or painted inside. Condensation can occur when temperature changes; this water
accumulates at the bottom of the tank.
The generator set itself is equipped with a fuel lift pump; therefore the tank can be installed at a lower level than the
generator set. The maximum suction height is 1.50 m (5 ft).
Only a few points related to function and safety are listed here:
• All connections should be on the upper side of the tank.
• The drain plug at the lowest point on the tank serves to permit the removal of water and sediment.
• The filler tank pipe outer diameter should be at least 50 mm (2 in.).
• The tank breather pipe must have an inner diameter (I.D.) of at least 13 mm (1/2 in.) and must be fitted with a goose
neck to prevent water from entering the tank.
• Diesel tanks shall be equipped with inspection hatch(es) having a suitable diameter of at least 120 mm at suitable
position(s) for cleaning and inspection of the lowest part(s) of the tank. The hatch must remain accessible when the
tank has been installed in the craft. The hatch(es) may be located on the top or side of the tank.
It is recommended that the exact route and length of the fuel lines be established at the first installation of the engine to
prevent problems later in connecting them to the engine.
ATTENTION!
All fuel lines must be well secured. The holes where the lines run through the bulkheads
should be carefully rounded off, or protected with rubber grommets. This prevents
damage to the lines from abrasion.
ATTENTION!
The max. fuel pump suction pressure head is around 1.5 m (60 inches) take care when
install the fuel line.
ATTENTION!
Air leaks or narrow needs on fuel line could provoke engine stop.