TPT July 2017

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T E CHNOLOG Y
48 JULY 2017
STRIP for SSAW and ERW Pipes
ON-LINE Laminations Inspection
100% coverage by Ultrasonic Technique
Spiral mill 2 m coil - Thickness 5 – 25 mm ERW mill 1900 mm coil - Thickness 4-16 mm
SOFRATEST supplies complete turnkey stations to be placed in the production line.
It follows the last quality standard like : API5L – SHELL – ARAMCO
The design is not limited in size.
SOFRATEST supplies complete traceability of the measurement and a mill process connexion for full automated operation.
Also available ON-LINE and OFF-LINE UT stations.
Contact us, we MANUFACTURE and supply complete mechanical devices and UT for ON-LINE
and OFF-LINE testing. We do retrofit of old installations.
SOFRATEST - Z.I. du Petit Parc - 78920 Ecquevilly – France
Tel : + 33 1 34 75 50 00 - Fax : + 33 1 34 75 53 41
E-mail : - Website
‘Armoured’ heat exchangers from IT Tech Swiss
TRADITIONAL SiC heat exchangers
offer the advantage of the high heat
exchange coefficient typical of silicon
carbide. The weak point of the system
is the sealing between the separation
plates and the tubes. At 100°C, PTFE
loses tensive stress, hindering the
proper sealing between plates and
tubes. Leaks from traditional heat
exchangers are due to fluid leakage
near the plates.
The IT Tech Swiss research and
development department has worked
during the last three years to optimise
a new technology for the manufacturing
of heat exchangers: the Guardian™
armoured PTFE exchanger. The special
‘armoured’ plates are made from
stainless steel with an outer PTFE lining
of suitable thickness.
While the stainless steel armour
guarantees rigidity of the separation
plates, the PTFE lining ensures
chemical inertia.
Splitting the tasks of providing
structural rigidity and resistance to
chemical aggression enhances reliability
and life cycle duration.
Guardian heat exchangers are
provided with a sealing system
realised through Guaflon™ (modified
filler PTFE) threaded bushings, which
couple to the threading of the PTFE
plate, blocking the tubes. The seal is
provided by elastomeric O-rings that
allow the tubes to expand without
compromising the seal tightness. The
O-rings are made of Kaflon™ 79P,
for the highest degree of elasticity,
softness and thermal resistance.
IT Tech Swiss SA – Switzerland
Email:
Website:
The plates are made
from stainless steel with
an outer PTFE lining