baltur TBML 350 ME Installation, Use And Maintenance Instruction Manual page 62

ENGLISH
LIQUID FUEL SUPPLY SYSTEM
The burner pump must receive the fuel from a suitable supply circuit
featuring an auxiliary pump which may feature a pressure regulator
adjustable from 0.5 to 3 bar.
The fuel supply pressure to the burner pump must not change both
with burner off and with working burner at the maximum fuel output
required by the boiler.
The supply circuit can be realized without pressure regulator, using
the dedicated hydraulic diagram.
The pipe dimensioning must be carried out according to the pipe
length and the flow rate of the installed pump.
These instructions ensure a good operation of the product.
The anti-pollution prescriptions, as well as the provisions set forth by
the local authorities, refer to the specific publications in force in the
country where the product will be installed.
HYDRAULIC DRAWING OF SUPPLY FOR ONE OR MORE TWO-STAGE OR MODULATING BURNERS WITH MAXIMUM NOMINAL
VISCOSITY (5°E AT 50°C)
1
The fuel recovery tanks (diameter ~ 150 mm - height ~ 400 mm)
must be installed as close as possible to the burner at 0.5 m above
the burner pump.
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5
7
4
6 6
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1 Main tank
2 Liquid fuel filter
3 Circulation pumps
4 Water and system outlet
5 Fuel recovery and degasifier
6 One-way valve
7 By-pass (normally closed)
A Connection to the burner
7
4