Brochure

Operating principle
The air separator uses the combined action
of several physical principles. The active
part consists of an assembly of concentric
mesh surfaces. These elements create the
whirling movement required to facilitate the
release of micro-bubbles and their adhesion
to these surfaces.
The bubbles, fusing with each other,
increase in size until the hydrostatic thrust
overcomes the adhesion force to the mesh.
They rise towards the top of the unit from
which they are released through a float-
operated automatic air release valve.
Construction details
DISCAL devices are constructed in such a way as to
allow maintenance and cleaning operations to be
carried out without having to remove the valve body
from the pipework. All valves are fitted with a bottom
connection for installing a drain valve. All internal air
release control components are fully accessible in all
the models.
The automatic air release valve, located at the top of
the units, has a long chamber for the movement of the
float. This feature prevents any debris present in the
water from reaching the sealing seat.
Steel models
Models are fitted with a side drain valve to drain large
amounts of air when filling the circuit and to remove any
debris present above the water level.
- The moving parts
that control the air
venting are
accessed
simply
by removing the
upper cover.
- When cleaning,
simply unscrew
the portion of the
body containing
the automatic air
vent valve.
Code 59829
Replacement Code 59756
551 Compact series 551 brass series
551 & NA551 Steel series