TPT May 2016

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May 2016 33
The future of pipe welding for high pressure pipes
Easy-to-Fit is a new welding solution
for pipes and fittings, which enables
considerable savings throughout the
supply chain. The idea of the pipe
prepping system has been developed
by Erne Fittings in Austria for fitting
solutions. In co-operation with DWT
in Germany it aimed to help develop a
perfect tool for portable pipe bevelling
machines.
Scientific research by the German
University in Chemnitz and by the
government welding institute SLV
Halle confirm that the properties
of the Easy-to-Fit weld seam are
equivalent to conventional V-welds.
Either for automated welding or
manual pipe welding the system
is well suited and the gap-free root
can easily be TIG welded.
Easy-to-Fit is an investment in
an intelligent pipe prepping system,
which ensures greater efficiency,
profitability and process stability.
Especially for automatic pipe
welding the weld end preparation is
very complex.
The welded joints require a weld
gap with very narrow margins. Also the
misalignment between root faces must
be reduced to a minimum. This requires
major effort to adjust and position parts
as the margins allowed by the standards
are so large that there is always
misalignment. For manual pipe welding
the system also creates huge benefits.
Innovations like Easy-to-Fit can only
be achieved with close end user contacts
and an in-depth understanding of the
corresponding application. Together with
an Austrian customer who was prepared
to take a revolutionary path from the
beginning, the innovation was created.
Nowadays many DWT customers
use this system with big benefits and
increase their competitiveness.
DWT Germany is a manufacturer of
high quality pipe bevelling machines,
made in Germany and exporting to 30
countries worldwide. In cooperation
with Erne Fittings, Austria, the company
has developed special machines and
tools for the Easy-to-Fit solution for
fittings and also for single pipe
applications.
“This innovation is a break-
through in pipe welding process
and will have a high influence on
quality and productivity in heavy
wall pipe welding,” said Michael
Weymann, managing director of
DWT GmbH Germany.
DWT GmbH – Germany
Fax: +49 201 450 9999
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