Technical data

22
Central vacuum systems
How to glue the tubes
Tubes and fittings have to be glued exclusively head
to head.
Tubes which are not glued head to head or which
are improperly cut cause clogging.
Tubes and fittings are glued using a special adhesive
(cold gluing). The adhesive must be exclusively put
on the “tongue” connectors/tubes.
If the adhesive is put on the “groove” connectors,
this causes filaments inside the tube.
Laying and connection
of the water vacuum system
Please notice: when laying several fittings, we
recommend - before gluing – to mark with a felt-tip
pen the exact point (grading) where the fittings have
to be connected. IMPORTANT! The adhesive reacts
very quickly (approx. 20 seconds) after which it is
impossible to move the glued fittings.
! WARNING !
Do not install external piping in contact with
sunbeams and atmospheric agents. In these cases
we advise to use zinc-coated stainless steel tubes.
Contact the technical office Disan.
If it is not possible to avoid the installation of external
tubes, cover the tube with thermal insulating material
(normally used in the hydraulic field).
YES
PVC STICK
PVC STICK
NO
PVC STICK
NO
NO
YES
YES
•
Insert tight the rubber couplings of the flexible
tubes (connected to the water pick-up):
1. to the pipe fitting equipped to connect to the
main line of the system.
2. to the pipe fittings equipped to connect to the
line coming from the inlet valves for water
suction
•
Please pay attention that the water exhaust valve
will be exactly positioned up to the runner cup in
order to permit the perfect convey of the vacuumed
liquids in the pipe.
Please notice: the rubber couplings could be
inserted directly in the piping diameter 63 mm or
with the reducers of the other diameters.
Z 193
Z 194
Inlet valve for
the water
vacuum
Piping to the
inlet valves
Piping to the
main line
Rubber
cup
Z 857