TPi May 2014

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28 Tube Products International May 2014
products & developments
Modular inflatable bladder system
Aquasol Corporation has launched the
patent-pending I-Purge™ and I-Purge
X modular inflatable bladder systems.
The versatile I-Purge and I-Purge X
modular system components combine
to offer the welding industry customised
solutions for pipe purging.
Equipped with Aquasol’s quick-connect
fittings, components easily snap on and
off in seconds. A variety of standard
harness lengths allow the user to
customise length based on individual
project needs, enabling placement of
the bladders outside the heat-affected
zone. The flexible, high heat harnesses
allow for navigation through elbows
and T-joints, and have a central point
marked with a luminescent indicator for
easy alignment with the centre of the
root gap.
The I-Purge modular system consists of
two spark-resistant, inflatable bladders
connected by a high-heat resistant
bridge harness. The design allows for
the creation of a pipe reducer by simply
connecting two bladders of different,
yet similar, diameters.
A tri-flow hose maximises efficiency
by enabling bladder inflation and quick
flooding of the purge area with noble gas.
An innovative tubing system provides
separate connections for inflation of
bladders along with introduction of inert
gas to the weld zone to expedite the
purging process. The inflated bladders
create an airtight seal against the pipe
walls. Another connection enables
monitoring of exhaust gases, ensuring
an oxygen-free environment.
Aquasol’s patent-pending diffuser
evenly distributes gas throughout the
purge area, reducing turbulence.
Once the weld is complete, the bladders
can be deflated, extracted, cleaned and
stored in the provided carrying bag.
The I-Purge can be modified with the
Isolator™ adaptor kit into a one-sided
plug. An isolator can be used to close
off the end of a pipe for servicing,
cleaning, inspection or sealing.
The I-Purge modular system can
be used multiple times thanks to its
durable construction and high quality
components. Bladders are available in
sizes ranging from 2" to 48" and may
be purchased either individually or as a
complete system.
Aquasol Corp – USA
Aquasol’s I-Purge X inflatable bladder system
Carbon steel
fittings
Hebei Haiyuan Pipe Fittings is
an ISO-certified manufacturer of
carbon steel butt weld fittings
according to ASTM A234 WPB,
and carbon steel forged flanges to
ASTM A105/N.
80 per cent of the company’s
products are exported, to countries
including Poland, Singapore,
UAE, Netherlands, Indonesia and
Iran.
Hebei Haiyuan Pipe Fittings Co,
Ltd – China
Stainless steel composite
tubes
Smart Stainless Tubes Pvt Ltd
is a manufacturer of stainless steel
composite tubes, based in India. The
tubes provide the qualities of stainless
steel for external applications. They
have a 0.3mm layer of stainless steel
on top of a 1 to 1.2mm-thick carbon
steel tube.
The carbon steel core provides
structural strength, and the stainless
steel layer provides the shine and anti-
corrosive protection. The tubes are used
in ornamental applications of stainless
steel tubes such as railings, balustrades,
door handles, handlebars, grills, gates,
medical and office furniture, and for long
lasting civic amenities like bus stands
and lamp posts.
To manufacture these tubes, carbon
steel strip of the required grade is
rolled and HF welded into a tube.
As the formed tube passes through
the second welding head, a sleeve of
stainless steel strip is formed around
the carbon steel tube, and TIG welded.
A sophisticated rolling process ensures
that there is no air gap between the
carbon steel and stainless steel layers.
The tubes can be bent and welded like
pure stainless steel tubes using TIG
welding. Tubes are available in sizes of
19.05 to 63.5mm OD with 1.2 to 1.5mm
total thickness.
Smart Stainless Tubes Pvt Ltd – India