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Idiomas disponibles

Whenever the user unveils an abnormality or malfunction in one or more components of
the machine, it is absolutely necessary to take the machine and its components to the
manufacturer or to an authorized service center.
Nonetheless, the machine must undergo inspection and overhaul at least once every two
years - or more frequently, if the national regulation requires so. The inspection and overhaul
must be performed by the manufacturer or an authorized service center, only.
In no event shall Ritmo S.p.A. be liable for any direct, indirect, incidental, or consequential
damages of any kind whatsoever with respect to the use of a machine that did not
undergo regular maintenance/overhaul.
In no event shall Ritmo S.p.A. be liable for any direct, indirect, incidental, or consequential
damages of any kind whatsoever with respect to an improper use (i.e., not according to
the instructions herein given) of the machine.
7.

SET UP

The quality of the joint depends on many factors; we recommend that the following
indications are respected in a meticulous manner, in order to give the user the surety of a
perfect welding.
STORAGE OF PIPES/FITTINGS/COUPLERS
During the welding cycle, the pipes/fittings/couplers must have the same temperature as
the ambient one (as read by the thermal probe of the machine).
Therefore, pipes/fittings/couplers must not be exposed to major weather conditions, such
as strong winds or direct sun rays, before or during the welding; their temperature could
change dramatically (from the ambient temperature), which would compromise the
welding.
Protect the pipes/fittings/couplers to be welded for as long as it's necessary so they reach
the ambient temperature before the welding cycle starts.
PREPARATION
Cut both pipe ends square (make a right angle cut). Use a proper pipe cutter.
Be sure to eliminate any bending and/or ovalization of the pipes.
CLEANLINESS
Scrape evenly the oxidized layer from the pipe ends to be welded. Use a proper pipe
scraper.
Be sure to make a total and uniform scraping of the surfaces of the pipe ends for a length
superior of at least 1 cm with respect to the semi-length of the coupler; lack of such an
operation will result in a superficial gluing (the important molecular interpenetration won't
take place) hence the welding is not acceptable.
It is strictly forbidden to use abrasive paper, rasp, emery wheel, or other improper tools to
scrape the pipes.
Unwrap the coupler only minutes before welding it. Clean its inner surface following the
manufacturer's instructions.
POSITIONING
Insert the pipe ends into the coupler. Support the pipes with proper aligners; this is of
absolute importance because:
- it assures that both pipes remain in position during the welding and cooling phases;
- it prevents any mechanical strain during the welding and cooling phases.
WELDING
The area where the welding takes place must be protected from adverse climate
conditions, such as humidity, very low temperatures (inferior to -10°C) or very high
temperatures (superior to +50°C), strong winds, direct sun rays.
The pipes/fittings/couplers to be welded must be made of the same material, or at least
compatible materials; proof of compatibility must be given by the coupler manufacturer.
EN
27

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