Instruction manual

Safety Valves
The DUO 55 has a pressure relief valve fitted to the
Discharge pipe
from temperature and
pressure relief valve
to tundish
boiler and a temperature and pressure relief valve fitted
to the cylinder. It is most important that they are
terminated below the boiler and over the tundish which
in turn should terminate safely outside the premises (see
Fig. 14). It is recommended that the tundish is installed
directly below the discharge pipe from the temperature
and pressure relief valve (37 Fig. 15). If necessary, the
pressure relief discharge pipe from the boiler may also
terminate over this tundish (Fig. 14a).
Safety device e.g.
;- Fixed grating
Discharge pipe from -
tundish with continuous fall
Fig. 14