TPT July 2007

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Technology Update
36 July /August 2007
• Straight welded, lipped-end pipes and components.
• ø 60 mm to ø 800 mm in a standard range.
• Larger diameters / special requirements upon request.
• Larger than ø 350 mm also available with flange connection.
• Mild steel, primer painted or hot-dip galvanised as well as
stainless steel.
• 1 - 3 mm wall thicknesses.
• Shock-explosion certified pipes and components available.
• Up to ø 400 mm normally dispatched immediately from stock.
The QUICK CONNECT® pull-ring makes the acclaimed
Jacob modular pipe system even more economical
for installation. In new plants for animal feed,
pharmaceuticals, chemicals, food, glass,
semiconductors or environmental techno-
logy as well as for upgrading existing
layouts user-friendly system installation
becomes precise and easy due to the
great versatility of mass-produced
pipe components.
... Follow the leader in bulk goods handling, dust-extraction and ventilation plants
Fr. Jacob Söhne GmbH & Co.
Phone +49 (0)571 95580
Original Quality to a Modular Design
EUROPE’S NO. 1 IN MODULAR PIPEWORK SYSTEMS – Used in all industrial sectors
New!
Product Catalogue2007
Hotline
+49 (0)571 95580
507068TubePipe_180x60gb 07.05.2007 15:12
As part of the construction of a 700km
pipeline for transporting natural gas from
Indonesia to Thailand, system integrator
CRC Evans, USA, opted for the latest
technology from Austrian welding systems
manufacturer, Fronius. The company will, for
the first time for an offshore project, equip six
workstations with digital welding technology.
For this project, CRC ordered Fronius digital
welding technology for two workstations on
each of three ships. The outer diameter of the
X70 high-strength steel 24m pipe sections is
42" (106 cm), and their walls are 23.85mm
thick. Using four TransPuls Synergic 3200
Pipe systems, the first station welds the root
and the hot pass in the first cycle, followed
by the first two cover layers.
For the first weld layer, a copper weld
pool ensures perfect root formation. At the
same time, the eight systems in the second
workstation weld the third to sixth filler
layers in two cycles. The four torches at the
first workstation are arranged in two pairs,
one behind the other (dual single). Starting
from the apex of the pipe, they each weld
180° arches, ie from position PA left and
right down to position PE.
In the second station the torches of the eight
welding systems are also configured ‘dual
single’, although here they weld a quarter-
circle instead of a semi-circle. Fronius has
perfected its welding programs as a result
of its experience in the narrow-gap welding
of pipelines. This also applies to the
synchronisation of the two arcs working in
each weld pool.
Quality plays a key role in pipeline con-
struction as rework is expensive and time-
consuming. Production costs in offshore
pipeline construction are approximately
US$300,000 per day. The 36 TransPuls
Synergic 3200 pipe welding systems
– with stable, practically spatter-free arcs
– contribute to the high productivity required
in the PTT 3rd Transmission offshore project.
They produce high quality seams with a
failure rate of just 1.5 per cent.
Fronius International GmbH – Austria
Fax: +43 7242 241 2670
Website:
CRC-Evans Pipeline International, Inc – USA
Fax: +1 281 999 8724
Email:
Website:
Process piping specialist
finds increased productivity
Bryan Mechanical, USA, is a mechanical
contractor specialising in process piping for
applications such as HVAC, condensers,
refrigeration and plumbing. The company
has worked on applications ranging
from chemical plants to Heinz Field, the
Pittsburgh Steelers stadium.
To cut carbon steel and stainless steel pipe,
the company uses a model 12A machine
from Continental Pipe & Tube Cut-off
Machines, USA, which cuts 3½" to 12¾"
diameter tube and pipe.
Bryan Mechanical performs an average
of 50 cuts per day, although this has
increased at times to 100 cuts, of varying
lengths. The company has found that
using a Continental machine takes 1/10
th of
the time of its previous flame-cut method
of cutting larger diameter pipe, with the
added benefit that the pipe is bevelled
on both sides in one cut, with no wasted
material.
Mr Mick Fonas, shop foreman at Bryan
Mechanical, commented on the ease of
use of the Continental machine: “I train
first year apprentices on it, and after about
a week they stop asking me questions. As
long as they can measure properly, they
can be cutting nearly immediately. In seven
years of using the machine, only once have
we had a problem – a shaft broke. We got
technical input from Continental on how to
fix it, and they sent a part so that it arrived
the next day.”
Continental Pipe & Tube Cut-off
Machines – USA
Fax : +1 630 543 5953
Email:
Website:
Pipeline system integrator
opts for digital welding technology
fi Eight TransPuls Synergic 3200 pipe welding
systems simultaneously produce two cover layers
on one pipe joint
› Digital welding technology from Fronius