20184179
18
GB
Installation
6.11
Fuel oil supply
6.11.1 Ring supply line
For heavy oil with viscosity up to 50°E/50°C.
The oil could easily flow through the pipes if those are
properly seized, protected and heated (by electricity, steam
or hot water).
The forwarding pump capacity should be all the least double
of that of the burner pump. If several burners are supplied
through the same ring supply line, the forwarding pump
should have a capacity of approx. 30% more than the sum of
the single burners outputs.
For starting-up: after excluding the burner by the shutter
valves 5) let the oil flow into the supply ring up to reach the
required circulation; after than open the valves and supply
normally the burner.
Key
Explosion danger due to fuel leaks in the
presence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel shut-off valve is closed before
performing any operation on the burner.
ATTENTION
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
ATTENTION
Before starting the burner make sure that the
return pipe line is not clogged.
Any obstruction would cause the pump seals to
break.
Oil pipes must be completely airtight.
Fig. 13
D2734
1
-
Tank (heated for thick oil)
2
-
Filter (oil resistance > 7°E / 50°C)
3
-
Transfer pump
4
-
Control pressure gauge
5
-
Gate valves for burner disabling (coupled)
6
-
Burner (with heavy oil kit code
3000721
)
7
-
Pressure regulator
8
-
Filter (oil resistance > 7°E / 50°C)
9
-
Burner pump
Summary of Contents for PRESS 450 T/N
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