Thermo-Heated Hoses For Hot-Melt Adhesives0 pages

thermo heated hoses FOR HOT-MELT ADHESIVES
PREO flexible high pressure thermo heated hoses convey liquids maintaining their properties unaltered, thanks to the internal constant
temperature. They are available in different models: standard and special versions (high temperature, with external water proof braid and with
external rigid protective jacket for movement, with external reduced diameter, with inner exchangeable glue tube and with air tube for spray).
They are suitable for all different models of dosing systems present on the market and are used in all industrial fields requiring high quality,
resistance and careful control of the temperature. They are available with different nominal diameters of the internal hose (6, 8, 10, 13, 16, 20
and 25 mm), with lengths that differ from 0,4 up to 12 meters and with working temperature between 50 and 230°C, in order to grant the same
application precision, safety and reliability in controlling all different flows. The connection end fittings are available in a wide range allowing
the perfect hydraulic connection between applicator and gun. Manufactured in galvanized steel, on Customer’s request they can be demanded
made of other materials (brass, iron, stainless steel) and equipped with different threads (BSP, metric, J.I.C, ASA etc.), in order to fulfil
any possible technical or production requirement.
polytetrafluoroethylene (ptfe) inner hose
Available in different diameters, it is obtained through
the extrusion and sintering of Polytetrafluoroethylene
(PTFE). It resists also to particularly aggressive adhesives
and to temperatures over 230°C (450°F).
Stainless steel braiding
Built in stainless steel 18/8-AISI 304, it assures protection
and resistance to the working pressures.
Heating resistance
It brings the inner hose made of PTFE in temperature
and wraps it around. It is of variable power.
Temperature sensor
It detects the material temperature allowing its continuous
control.
Glass fiber tape
It maintains the temperature constant wrapping and protecting
the resistance.
Quick plug-in connectors
They grant the electric connection between machine and gun.
They can be supplied in different typologies and models.
Insulating foam
It helps to keep the temperature to the level required thanks
also to the silicon foam with which it is composed.
Wire conductors
Equipped with earth conductors, they supervise to the heating
and control of the guns solenoid valve (24V).
Protective external braiding
It increases the mechanical resistance against heat, strokes,
abrasions wear and handling. It is available in Polyamide
or in water-repellent silicon.
End caps
The electrical connection takes place here. They can be rigid
or made of silicon and thanks to their particular resistance, they
protect the hoses ends.
Terminal fittings
They are manufactured with different threads and materials
in accordance with the specific requirement and allow
the hydraulic connection between machine and gun granting
a perfect tightness in all circumstances.