Product Overview

End fittings with multi-position valves
The ball valves in the end fittings can be positioned to perform different functions.
External shape of the manifolds and brackets
The casting process makes it possible to shape the external
manifold geometry as required.
In this way, recesses (1) have been made in correspondence with
the pipe passage coming down from the upper manifold, to allow it
to be partially housed, for the benefit of depth. This special external
shaping does not affect the head loss values, since the
cross-sections of the recesses (a) are the same as in
correspondence with the outlets (b)+(c) and where the control
devices (setting lockshield and shut-off valves) obstruct the
medium flow.
a
b
c
1
Fill/drain
Filling the circuits.
Filling via the flow
manifold and
draining via the
return manifold:
both valves are in
the open position.
Closing
Closing the
connection to the fill
and drain valves.
Both valves are in
the closed position.
The automatic air
vent on the flow
manifold is always
connected and
cannot be shut off.
Operation with by-pass
Normal operation.
The return manifold
valve is in the by-pass
connection position and
the flow manifold valve
is in the open position.
25 mm
BAGNO
CALEFFI
CALEFFI
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
HOBBY WC
SOGGIORNO
CAMERA
CALEFFI
BAGNOHOBBY WC
SOGGIORNO
CAMERA
CALEFF
The partial pipe housing in the manifold shaping is moreover
helped by the brackets, constructed with a precise angle in order
to obtain a 25 mm shift between the upper and lower manifold.
As shown in the figure, this shift creates a perfect automatic
alignment between the pipe position and the manifold shape at the
installation site.