5
1.2
General characteristics of the RTT boilers
The RTT 76-145 boilers are forced draught heat generators, com-
posed of cast iron elements, whose power ranges from 76 a 145
kW with an adequate connection to the burner and they oper-
ate with gas or liquid fuel, available in 6 different models.
The maximum operating pressure of the RTT 76-145 boilers is 6
bar and the maximum operating temperature is 90°C.
In the RTT 76-145 boilers, the surfaces for heat transmission have
been increased by special fins in the combustion chamber and
in the discharge pipe towards the flue. This increases the capac-
ity of the cast iron boiler to transmit heat to the maximum.
The RTT 76-145 boilers are made of cast iron elements. The 5
available outputs increase as the number of elements in the
boiler increases.
The RTT boilers are made of EN GJL 200, a special alloy that resists
expansion and temperature variations, which ensures a long
working life.
Thanks to the vertical structures that have been specially de-
signed with three flue passes, the exhaust gases pass three
times inside the boiler, obtaining a high level of transmission
of the heat produced by the combustion to the water present in
the sections.
The RTT 76-145 boilers are high yield heat generators thanks to
a calorific power of the fuel between 91-93%. A similar level of
efficiency and their optimal isolation provide a greater amount
of energy from less fuel consumption. With the RTT 76-145 boilers
leaks are reduced to a minimum.
Thanks to its combustion chamber, to an extensive surface for
transmitting heat, to the presence of turbulators, a manifold
and appropriate insulation, excellent results are attained in
terms of high levels of heat transmission and the optimisation
of the combustion gas emissions.