InFORM 03.2007 (PDF-File)

Magazine for employees
and business partners
of the company
3.
Ausgabe
2 Juli 2007
3rdJahrgang
year Issue
3 November
2007
Bernese Alps: A very special type
of pipeline construction
Bregenz: Tree grids for the lakeside promenade
Beroun: Industry, trade and the
beauty of nature
3
The company
4
10
11
TRM: Snow reliability as an economic factor in the
Bernese Alps
BGC: Presence in Eastern Europe
GKG: MAN trainees visiting the foundry of GKG
BGW – Special casting: Steam turbines from Wetzlar for
Siemens Power Generation
BKG: Tree grids for the Bregenz lakeside promenade
BFG: Buderus Feinguss in the Czech Republic
Places and people
12
13
Beroun – Industry, trade and the beauty of nature
Helmut Seidel and Bernhard Prothmann about their
work in the core-making and hand-moulding shop
News
14
15
16
17
18
19
Annual plaque 2008: The most beautiful bridge in
the world
Cast iron pipe technology: European Sales Meeting
Czech water management specialists in Berlin
Exhibition “Ville San Tranchée”
Exhibition marathon
Replacement of a long-distance pipe in a mining
subsidence area
Buderus Spezialguss receives Supplier Award
Special casting investment
TRM: New chamber filter press
GKG: Test of the mould system
BKG: BUDATOP
About us
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21 22
23
24
25
26
27
100 years of Buderus Staffel
Former apprentices’ meeting in Wetzlar
1st BGW Family Day
Action days in Wetzlar and Staffel
New classic „STOPschilder“
A cast iron pipe worth looking at
Foundry mechanic – a career with a future!
50-year anniversary of the Berlin-Marienfelde
construction training site: BGW donates cast iron pipe
Cast iron pipe technology: Sales force conference
this time with excursion
Buderus Foundry Management sells cast iron pipe division
Jürgen Böing new BFG Managing Director
Changes to the BGW Works Council
Jubilees
Editorial
Contents
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2
Editorial
Contents
Dear Readers,
Rolf Glessing, Director
of Buderus Foundry Management S.ár.l.
Employees have put themselves out for their company, not
only during work time,: voluntarily and without pay, many employees at the locations of Wetzlar, Staffel and Hall have been
making sure that their locations are “in FORM”. We would
like to say “thank you” for their efforts.
One very special event during the summer was the 100-year
Jubilee celebrated by Buderus Kanalguss GmbH in Staffel.
The visitors were impressed both by the accompanying programme and especially by the works tour during ongoing production. Sincere congratulations once again to the whole team
in Staffel, and all the best for the next 100 years.
As you can see, the group has several eventful months behind it. Many things have been achieved or set in motion. We
are therefore looking forward to the future with great excitement and anticipation. We – the staff and management of the
Buderus Foundry Group – look forward taking on the tasks
of the future.
Finally I would like to express my sincere thanks to all readers
of inFORM, our employees, customers, suppliers and partners for the outstanding co-operation during the past year.
I wish you a pleasant holiday, a successful year in 2008, good
health and all the best.
E ditorial
Following the encouraging positive feedback to our “inFORM”
magazine, which first appeared in the summer, we take great
pleasure in presenting the second issue to you before year
ends.
The latest item of news first: From the New Year 2008, the
cast iron pipe division will most probably have a new majority shareholder. The majority shareholding in the cast iron
pipe division of Buderus Giesserei Wetzlar GmbH, the Tiroler Röhren und Metallwerke AG and the Buderus litinové systémy s.r.o. will then be held by the Buy_Out Central Europe
Beteiligungs-Invest AG, Vienna, Austria. Buderus Foundry
Management S.àr.l. will, however, still retain a 25.1% share in
the business. Together with the new investor, we believe in a
strong further development of the cast iron pipe business, to
strengthen and expand the existing locations and create further opportunities in the market. The other activities, such as
special casting, investment casting, sewage casting, cast components and Buderus Separatory Polska, will remain completely within the Buderus Foundry Group.
Positive development within the companies has continued
over the last months. Our experts in cast iron pipe technology have achieved outstanding success in the sale of pipes
for snow-making systems this summer. Following the lack
of snow last winter, many ski areas realised that they had a
substantial investment requirement. Under extremely difficult laying conditions and in high altitudes, we were able to
help our customers in their projects. Buderus litinové systémy
s.r.o. in Beroun/Czech Republic also continues on their successful path. Despite high competition, our customers in the
Czech Republic and Slovakia appreciated the capabilities behind our motto “Customer satisfaction is everything”.
In special casting, we were able to support our customers in
the energy business, such as Siemens - Power Generation, in
their efforts to achieve greater efficiency in energy generation
and thereby make significant progress in climate protection.
Further projects were also instituted in the area of wind power systems. The business prospects for special casting therefore look very positive for the coming years. In order to meet
these requirements, Buderus Foundry Management has decided to implement an investment project for special casting
totalling approx. € 7 million.
In the summer, Buderus Feinguss GmbH started the contract
processing for various products in the Czech Republic.
Following the consequent training of our partner’s employees, we can now report a successful start. On 1st October
2007, Mr. Jürgen Böing started as the new Managing Director of Buderus Feinguss GmbH and gb Implantat Technologie
GmbH. We are delighted to have Mr. Böing with us and wish
him every success in his new responsibility.
Yours
Rolf Glessing
3
Cast iron pipe technology:
T RM – C a st iron pipe technology
Glacier 3000
4
Continually rising average temperatures
inevitably mean less snow. Mild winters
are occurring more frequently, so that
mountain regions whose most important
economic factor is snow see their prosperity under threat. Even ski regions at
higher altitudes, which are almost certain
to have snow, must still be able to offer
ski slopes in good condition in the runup to the season in order to remain competitive. Many operators therefore have
their ski slopes prepared with the aid of
snow-making systems. Austria, Italy and
France already use such equipment on
over 50% of their ski slopes. In Swiss ski
resorts, the corresponding figure so far is
only around 30%.
Oldenkessel snow-making system
The “Bergbahnen Destination Gstaad
AG”, operator of the Glacier 3000 ski
resort in the Bernese Alps, has been investing in the future of the Gstaad / Les
Diablerets region by installing the longplanned snow-making system in Oldenkessel in the year 2006 and, at almost
4 km, now has the longest ski slope in the
region which is covered in snow in the
pre-season. The investment has already
started to pay for itself because, despite
the severe lack of snow in the pre-season, the ski slope was able to be opened
in mid-December 2006, thanks to the
snow-making system.
Good co-operation made the apparently impossible possible
“Weiss + Appetito Rohrleitungstechnik
AG” and the technical support of “TMH
THOMAS HAGENBUCHER”, the Swiss
sales partner of “Tiroler Röhren- und
Metallwerke AG” (TRM) and “Buderus
Gussrohrtechnik”, were involved as early
as the project planning stage, assisting the
constructors and the responsible planning office with all technical questions of
pipework construction. Various and sometimes very complex problems arose,
which were solved by the outstanding
co-operation of all involved. The first major problem was the deadline set by the
operator: The Oldenkessel snow-making
system was to be brought into operation
in December 2006.
Only by means of the excellent teamwork between TRM, Buderus, TMH and
the pipework company was it finally possible to maintain this tight schedule and
complete this “monster project” in a
construction time of just four months.
Following the acquisition of the Glacier
3000, the glacier skiing region between
Gstaad and Les Diablerets in the Bernese alps by Gstaad real estate agent
Marcel Bach, Formula 1 boss Bernie Ecclestone and the agricultural industrialist Jean-Claude Mimran, it was their
plan to invest in increasing the experience value and quality of this mountain
destination in the future. For this reason,
projects worth around 18 million Swiss
francs were realised in the first year following the purchase of the skiing area
– an investment in the future.
In the only glacier skiing area of the Bernese Oberland, winter sports are on the
agenda from October to the beginning
of May.
Thanks to the two cable-car systems, skiers can make the 1,500 m trip to the
top in around 15 minutes. The imposing mountain station on the glacier, designed by the Swiss star architect Mario
Botta, forms the starting point for the
trip into the mountain region of Glacier
3000.
The view from this point embraces no
less than 24 peaks of over 13,000 ft.,
from Mont Blanc to the Matterhorn and
on to the Jungfrau. With the ski slopes
round the Oldensattel, Glacier 3000
offers one of the most demanding and
longest downhill slopes in the region.
On the glacier itself, a wide range of
activities awaits visitors: winter trekking
routes, cross-country skiing, snow park,
observation point, dog-sled trips and the
highest toboggan run in the world – the
Alpine Coaster, which with a length of
1,000 m, total turns of 560°, 10 curves,
6 waves, 3 jumps and 2 bridges represents a real attraction.
Snow reliability as an economic factor in the Bernese Alps
A total of 11.5 km of ductile cast iron
pipes was laid. The maximum pressure
stage was 100 bar.
Pipelines subjected to such enormous
stresses are very rare and extremely
complex.
The flexible, reliable and efficient VRST/BLS® joint connection system was the
ideal solution for the difficult topographical conditions. The altitude, steepness,
rocky undersurface, stone chips, danger
of avalanches and the changeable weather in the high alpine terrain demanded
a great deal not only from the material,
but also from the planners. A total of approx 1,000 tonnes of material had to be
transported to the installation site – most
of it by helicopter.
In order to be able to prepare the so-called „Oldenpiste“, water was used from
the Sanetsch reservoir located at an altitude of 2,034 m. This required the laying of a 1 km long reservoir pipe. There was also no comparable reference installation of this type. The pressure stage
of 100 bar and the practically incalculable
reciprocal effects during filling and emptying the pipe were extremely tricky. The
diving work at over 2,000 m ASL also had
to be planned carefully in order to avoid
exposing the workers to any danger.
The pipe was assembled on land and then
supported on the surface by floats before
being lowered under control. The anchoring and stabilisation on the reservoir bed
was carried out using colloidal mortar retained in fabric formwork.
After the reservoir pipe emerged at the
bank, the transport pipe was laid conventionally over almost 6 km from 2,000 m
ASL to 2,700 m ASL. The greatest challenges of this pipe section were the logistics, the sometimes very steep terrain
and the land and landscape protection regulations of the Wallis Canton, which had
to be strictly observed.
As a connection between the Wallis Canton and the ski area in the Bern Canton, a
260 m long tunnel was constructed using
blasting. The most demanding, tricky and
precarious part of the whole project was
the 270 m long pipeline over the expo-
sed rock wall as far as the Oldenalp distribution and pressure reduction shaft,
which even included some vertical sections. Since the rock in this area is very
unstable and brittle, the work had to be
carried out under the strictest safety precautions. The attachments were installed using a special construction of steel
and the anchoring with poured mortar. In
the vertical area, a pipe gantry was constructed using pre-tensioned steel cables.
The tensile stresses on the VRS-T/BLS®
pipe connections were enormous, especially during the various construction
states before the final anchoring. The cooperation with specialists, mountain climbers and mountain guides from all over
Switzerland went perfectly. The pipe material met the exacting requirements, and
the construction works, which are still
unique today, were able to fulfil the required quality specifications.
The actual snow-making pipe with 62
outlets to the shafts with snow-making
lances has a length of scarcely 4 km.
This section is so inaccessible and steep
that the pipe material, all the tools and
the construction workers could only be
brought to the installation site by helicopter.
T RM – C a st iron pipe technology
Under water, over land and through the mountain: pipeline construction of a very special type
5
Presence in Eastern Europe
Buderus litinové systémy s.r.o.
The sister company of Buderus Giesserei Wetzlar GmbH, Buderus litinové systémy s.r.o. (BGC), founded in 1999 in the
Czech city of Beroun, is responsible for
sales activities in the Czech Republic and
Slovakia.
When the Czech Republic joined the European Union in May 2004, this created
an increased demand for the further development of the infrastructure of the
country. This naturally offered outstanding prospects for the sales company
BGC.
Despite the considerable competitive
pressure, BGC has already been able to
record some notable successes in this
highly competitive market. The basis for
this successful sales activity has been for-
6
med on the one hand by the close contacts with waterworks and communities,
and on the other by the “Czech efficiency” of the employees of BGC who, with
their 24-hour service, are doing everything they can to ensure customer satisfaction.
The prestigious orders obtained by the
company include projects such as the
assembly of the Fulnek-Hranice-Prerov
water supply pipeline in northern Moravia, for which 24 km of Buderus DN 500
ductile pipes (partly consisting of ZMU
pipe) were laid. Other major activities of
which BGC is justly proud are the “Supply of Blatensko with fresh water” (28.5
km DN 300/400 with ZMU pipes) and the
“Extension of the waterworks infrastructure of the city of Pilsen” (Buderus ZincPLUS DN 350 water pipes, approx. 2 km
and DN 100-250 waste water pipes, approx. 7 km incl. BLS® connections).
The development of industrial and logistics centres and automotive works in the
Czech Republic also present the company with many interesting opportunities.
For example, the fire extinguishing systems in the newly constructive automotive works of TPCA/Toyota, Peugeot and
Citroën in Kolín are all using pipe from
Buderus. BGC was also one of the contractors involved in the construction of a
large PSA/Peugeot-Citroën automotive
works in Trnava/Slovakia.
The BGC exhibition team in Brno
The BGC stand in Trenčín
display also included the TYTON® connection, BRS® and BLS®. In addition to
the new blue pipe generation, the exhibit
also featured items from the comprehensive fitting range.
Together with its exclusive business partner, TATRA ARMATURA, Buderus litinové
systémy s.r.o. also presented itself at the
exhibition AQUA 2007 in Trenčín in Slovakia from 19th to 21st June. The interest demonstrated by visitors here was
also very encouraging. Contacts were
established with various water system
operators, business partners, representatives of investors and not least with project organisers.
Overall, these two exhibitions completely fulfilled the high expectations of BGC
and the company is now eagerly looking forward to the prospects for the year
2008.
Buderus litinové systémy s.r.o.
Exhibitions in Brno and Trenčín
In order to consolidate the presence and
image of “Buderus Gussrohrtechnik” in
Eastern Europe, Buderus litinové systémy
s.r.o. has been successfully taking part
in the largest water management exhibitions in the Czech Republic and Slovakia.
In May of this year, the international water management exhibition VODOVODY-KANALIZACE 2007 took place in
Brno and BGC was of course also there.
A total of 330 exhibitors from 13 countries had their products on display over a
total area of 11,200 m². The organisers
were able to record an increase of 18%
in the number of visitors in comparison
to the previous year. The visitors showed
an increasing interest in water treatment
systems and systems for water and waste water pipe. The slogan of the stand of
Buderus litinové systémy was: “The new
generation of pipe is blue”. Special emphasis was consequently placed on pipe
with the new special outer coating, Buderus Zinc-PLUS, although products on
Getting to know each other early
It is always beneficial if manufacturers and
suppliers are familiar with each other’s
business and production processes. In
fact, it is never too soon to start. Approx.
30 young men and women from MAN
were invited to GKG early this year together with their trainers in order to obtain
a practical and on-the-spot insight into the
complex conditions and special requirements in a foundry. Such an exchange of
information and getting to know each
other is beneficial for all parties.
The procurement and reliable delivery of
cast components are extremely important for the production and marketing of
commercial vehicles. Many areas of the
manufacturing business are affected by
this: design, purchasing teams, logistics,
disposition, production areas, accounting, quality control and right through to
the sale of the vehicles − particularly if
one also includes the long-term reliable
supply of spare parts.
The young MAN trainees came from almost all the above areas in order to see
the work and operations of a mediumsized supplier who has been supplying
a significant proportion of MAN safety
components for decades.
Sustainable success also ultimately relies on personal contacts, mutual understanding and long-term co-operation. It
is, therefore, not surprising that the initiative for this move came directly from
people involved in the day-to-day business, in this case Peter Lichtblau from
Logistics and Dispatch and his counterpart at MAN, Rosemarie Wohlert. With
great enthusiasm on both sides, the idea
of enhancing the training in this way and
bringing it to life, was immediately taken
up and developed, and quickly realised
without any great effort, although with
great effect.
MAN provided one of its beautiful Neoplan works buses, while Guss Komponenten looked after the refreshments. The
personal enthusiasm and constructive
discussions between all those involved
made the day an event worth remembering. Guss Komponenten GmbH will be
making every effort to develop this approach to further enhancing training. In
addition to the development of personal
contacts and mutual understanding, the
aim will, above all, be to help the modern technology of moulding and casting
to achieve the appropriate attention and
presence in development and its application in modern vehicle technology, engineering and industry.
Further activities in this field are therefore being planned with MAN, although
the doors are also open to other companies interested in providing more practical training.
Plans are in hand for experts and engineers from Guss Komponenten GmbH
to give on-site presentations on moulding
and casting technology. And there is no
lack of possible subjects: the range extends from fundamental, basic information through to specific aspects of material
technology and cast component design.
G KG – C as t iron components
MAN trainees visiting the foundry of Guss Komponenten GmbH
7
Steam turbines from Wetzlar
BG W – S pecial casting
Energy efficiency as the key to CO2 reduction
8
The energy industry is today faced by the
challenge of ensuring an economic and
environmentally compatible supply of
energy, in particular electricity. This task
must be viewed against the background
of limited raw materials resources and
rising, or at least severely fluctuating,
world market prices.
In addition to nuclear power and renewable energies, fossil fuels such as coal, oil
and gas will accordingly continue to form
the backbone of energy supplies in the
coming decades, largely helping to cover
future requirements.
It is, however, an inescapable fact that the
combustion of fossil fuels increases the
concentration of the greenhouse gas CO2
in the atmosphere, thereby contributing
towards the climate change that can now
be observed all over the world. The future use of fossil fuels must therefore be
orientated towards the objectives of climate protection and preservation of resources.
Prof. Dr.-Ing. Reinhard Mönig, Director of the Institute of Drive Technology
of the “Deutsches Zentrum für Luft- und
Raumfahrt (DLR)” (“German Aerospace
Centre”) in Cologne, sees the best opportunities towards this end in two approaches: “Firstly the ongoing optimisation of energy conversion, particularly by
means of improving the level of efficiency, and secondly the development of lowemission or even emission-free power
stations.”
Siemens Power Generation (PG), one
of the world’s leading component and
equipment suppliers to the energy and
power industry, to whom the special
casting works of BGW has been supplying
steam turbine casings for years, is setting
worldwide efficiency standards for fossil
fuel-fired power stations.
Climate protection is feasible: that’s the
guiding principle of the PG engineers. A
sustainable energy supply depends on
four factors: environmentally-compatible
energy technology, improved efficiency,
CO2-separation and the use of renewable
energies. For many years now, the company has been successfully implementing
CO2-reduction, one example being the
Niederaußem brown coal power station,
which has improved efficiency by 43%
and reduced CO2 emissions by 16% in
comparison to 1992.
Development of efficiency level and corresponding
CO2 reduction at the Niederaußem brown coal power station
Efficiency level
CO2-emissions
1992
36%
Basis
2006
43%
-16%
2020 target >50%*
* With brown coal pre-drying
>-28%
for Siemens Power Generation
The Niederaußem brown coal power station
in Nordrhein-Westfalen
With its 200 m high cooling tower, the power station located in the Niederaußem district of Bergheim is recognisable from a long way away. After a construction period of four years, it came into operation in 2002 as the first brown
coal power station equipped with optimised system technology (BoA). With the
aid of this technology, 43% of the energy content of the brown coal can now be
used instead of the previous 36%, and the carbon dioxide emissions can be reduced by 30%. This high-performance brown coal power station in the Rhenish
brown coal field, for which the special casting works of BGW supplied low-pressure internal casings, has a capacity of 3,900 MW divided between nine blocks.
The power station was originally planned in the 1960’s with an overall output
of 900 MW as the power station Fortuna IV, based on the Fortuna I, II und III
power stations, which were in operation from 1912 until 1988, and have since
been shut down. In order to reflect the location, the name was changed to the
“Niederaußem power station”.
Electricity production started in 1963 with the commissioning of the 150-MW
Blocks A and B. Over the following years, the power station was extended to
provide an output of 2,700 MW with a total of eight blocks. This output was increased from 1994 to 2,840 MW by means of efficiency-improving measures to
the turbines (retrofit). The Niederaußem power station has now been further
extended by a “BoA” block with a gross output of 1,000 MW. “BoA” stands for
“Braunkohlekraftwerk mit optimierter Anlagentechnik” (“Brown coal power
station with optimised system technology”). The aim is the further reduction of
CO2 emissions in particular by up to 3 million tonnes annually by increasing the
efficiency to over 43%. Dust, sulphur dioxide and nitrous oxide emissions have
also fallen by around 30%. The new block went into production in 2003.
is one of the world’s leading component and system suppliers to companies in the energy and power industry.
In the business year 2006 (1st October – 30th September), the company,
employing around 36,400 people,
achieved a turnover of over €10 billion, and recorded an order intake of
approx. €12.5 billion.
Low costs, high flexibility, complete
safety and good environmental and climatic compatibility – these are the requirements of customers on modern
turbines and energy technology. PG
successfully meets these requirements
with proven technology, many years
of experience and innovative ideas.
Thanks to its global network, the company is represented in almost all regions of the world – around one-fifth
of the power station capacity installed
worldwide comes from Siemens Power
Generation.
In addition to high-efficiency fossil fuelfired turbines (gas and steam turbines),
generators and power stations, PG
also develops wind power systems for
onshore and offshore use.
The services available range from individual planning and consultation,
to turnkey plant construction and on
to maintenance and operation – in
short, everything that customers need
throughout the complete life cycle of a
power station.
BG W – S pecial casting
Siemens Power Generation (PG)
9
Tree grids for the lakeside promenade
Bregenz − The cultural, leisure
and shopping centre on Lake Constance
BKG – D rainage casting
Protecting and designing
10
The devastating flooding of Lake Constance in 1999 was decisive in prompting
the Vorarlberg state capital of Bregenz to
develop a safety concept as a precaution
against recurring events of this type – a
concept which has been successfully implemented within eight years. The floodprotection project was realised in a total of eight construction phases and today
offers comprehensive protection along
the lakeside promenade. The lakeside
wall was raised by 30 cm and the town
also took advantage of this opportunity to redesign the popular lakeside promenade, which was first laid out in the
year 1900. So as not to neglect the green
spaces, the town of Bregenz also decided
to protect the existing trees with castiron tree grids, and thereby add a design
component matching the modern look of
the redesigned promenade.
Buderus Kanalguss GmbH therefore designed the tree grids in a square shape,
especially for this project. The design and
the connection technique of the individual cast segments for Bregenz was derived
from the Buderus Quadral design family. In co-operation with “BKG-Konstruktions- und Anwendungstechnik für Baumschutzsysteme” (BKG design and application technology for tree protection
systems), a comprehensive solution for
the protection of the green spaces plan-
ted with existing trees (old plane trees)
was developed by the Building Department of the town of Bregenz. Together
they succeeded in arriving at a size and
compatibility of the corrosion-resistant
cast grids to be used which was feasible
in terms of application technology, production technology and economy.
Although this formed the basis for the
technical requirements of the specifications list for the tender by the town of
Bregenz, a production order for Buderus
Kanalguss GmbH was not yet in sight. In
the tender process, in which Buderus did
not take a direct part, the contract was
awarded to a local building company.
The export department, however, did an
excellent job in persuading the building
company against the cheaper quotation
received from an eastern foundry and
convinced it of the expertise of Buderus
Kanalguss GmbH in the field of high-quality tree protection systems accumulated
over more than 40 years.
Since this project included two extension
phases and tender procedures, BKG successfully took on the international competition once again in Spring 2006 and
early 2007 and was able to handle both
orders, covering a total of around 400 m²
of tree protection grids up to the value of
€ 100,000, to the satisfaction of the town
of Bregenz.
The location could hardly be more beautiful:
Bregenz, the state capital of the Austrian state
of Vorarlberg, extends along the eastern bank
of Lake Constance between Germany and
Switzerland. Even the Romans, who settled
here 2,000 years ago, recognised the charm
of the region. The Middle Ages centre is preserved in the idyllic Oberstadt, which was
founded in the 12th century. Here one finds
the emblem of Bregenz, the “Martinsturm”,
with its cycle of frescoes in the chapel.
Today the town offers its 28,000 inhabitants
and the many tourists a host of culture, leisure and shopping facilities. Water sports are
very popular. The Bregenz Festival Plays, with
their top-class opera performances on and in
the lake, are famous far beyond the borders
of the region.
The Bregenz lakeside promenade is extremely popular. From the imposing playhouse with
its lakeside stage, visitors and residents can
walk to the music pavilion, via the pier and
the harbour in the direction of the town centre. The route past the ‘Nepomuk Chapel’
leads to the ‘Kunsthaus’ and the ‘Theater am
Kornmarktplatz’.
All year round, a cable-car brings guests to
the 3,500 ft. high ‘Pfänder’, the local mountain of Bregenz, where an alpine nature reserve invites visitors to observe the beauties of the local fauna. The summit of the
‘Pfänder’ is the starting point for walks and
offers a panoramic view over Lake Constance
and the surrounding mountains. With all this
on offer, it is little wonder that the population
of the town is continually increasing.
Staying competitive in the face of increasing competition
In order to stay competitive in the face of
increasing competition and to be able to
better exploit the growth opportunities in
the investment casting market, Buderus
Feinguss GmbH (BFG) established a further production location in the Czech Republic. This is in addition to strengthening its medical casting operations through
the acquisition of gb Implantat-Technologie (as reported in the last issue).
Following a development and ramp-up
period over several months, together
with our partner Immogard s.r.o., production was started on 1st July 2007
in Libavske Udoli (Liebau valley) near
Kynsperk nad Ohri (Königsberg on the
Eger). The site with 350 employees is located approx. 20 km East of the German
border, between Eger and Karlsbad.
Immogard belongs to the Albani Group,
based in Augsburg, and has been present
at the location for 12 years. Initially, textiles were produced and finished in Libavske Udoli, and contract processing
of metal components for an injectionmoulding manufacturer has been carried
out since 2002.
Thus, BFG is able to rely on a capable
partner with employees experienced in
dealing with German suppliers and customers, and with good German language
skills.
Following a two-month familiarization
phase for the Czech core team in Hirzenhain, machinery and materials were relocated and installed in Czechia within one
week. With the energetic support of the
colleagues from Hirzenhain, operations
were brought up to speed with steadily
increasing productivity.
BFG – Inv estment casting
“Buderus Feinguss” in the Czech Republic
The relocation of products from Moers
has been underway since 20th September 2007. Our partner currently employs
around 35 staff for Buderus activities,
and from 1st October 2007, parts from
Hirzenhain and Moers will go into full
scale continous production in Libavske
Udoli.
With the support of both German plants,
the aim is to provide our customers with
the known high quality and output from
the beginning of 2008.
11
Industry, trade and the beauty of nature
The Czech town of Beroun, headquarters of Buderus litinové systémy s.r.o.,
Plac e s and people
has many advantages
12
Matej, Kuba and Vojta are the stars of
Beroun. They have even appeared on TV,
although they are actually really “shy”, as
we are assured officially. But you can never be too sure of this with brown bears.
Nor is it only the tourists who have taken
the three bears in their suburban enclosure to their heart; the 18,000 residents of
Beroun also traditionally have a liking for
bears, which also feature on the coat of
arms and flag of the town.
This central Bohemian county town,
which is located about 25 km away from
Prague, has other attractions too. It also
has a rich history, which begins with its
first mention in official records in the year
1265. Due to its strategic importance, it
was declared to be a royal town. Over
the years it withstood fires, epidemics
and pillages. The town experienced an
increase in prosperity when ore was discovered here in the 19th century and the
textile industry settled in the town. Today, Beroun is a centre of light and medium-heavy industry – iron, cement, lime −
and an important hub of trade. Following
the severe flooding of 2002, the town recovered quickly – also supported by its
German partner town of Goslar. The
landmark of the town is the Town Hall
constructed in the Neo-Renaissance style, although the town is also well-known
for its old forts and the Prague and Pilsen Gate.
The craftsmanship trades also have a long
tradition in Beroun. Cobblers, wood-carvers, soap-makers, smiths, glass-blowers,
basket-makers, cutlers and brush-makers
can all be found in the markets, but in
particular, potters are to be found here.
In September every year, the potters of
the country come together at these markets in order to award prizes to the best
products during a great cultural festival.
Beroun is also interesting from a natural science point of view. The town lies
in the centre of a geologically important
area, with a sequence of strata of ancient
mountains containing rich fossil deposits.
The area around Beroun is a world natural heritage site. The town is also the
gate to the Krivoklátsko Nature Reserve, which has been named by UNESCO
as a biosphere reserve, and Český kras
(Bohemian Karst) containing unique karst
formations. In the valleys of the rivers
Berounka and Kačák are gorges, caves
and bizarre limestone rock formations.
Amongst the historic sites of the surrounding area, those worth mentioning include the Royal Castle of Karlstejn and the
memorial site of Lidice, a village which
was destroyed by the National Socialists
in 1942.
An excellent transport location, a rich
history, a town centre protected as a national monument, the beauty of its natural setting and its prospering industry all
serve to make Beroun an attractive location - not forgetting Matej, Kuba and Vojta, of course.
„Every day a new situation“
Helmut Seidel and Bernhard Prothmann
Bernhard Prothmann is practically a cornerstone of the Buderus Gießerei Wetzlar GmbH. He still knows exactly when
he started: “I began my training here as a
hand moulder on 8th August 1975.” Now
he is a master, the manager of the handmoulding shop with personal responsibility for about 45 employees.
Helmut Seidel has not been here quite so
long, although he too does not need to
think very long about his starting date: his
first day with the company was 16th October 1989. He now manages the coremaking shop with its staff of about 23 and
is also incidentally responsible for ordering such materials as hooks, screws or
pipes.
Prothmann and Seidel work in the special cast products department, and get on
well: “There must be no tension, otherwise the work process would simply collapse”, said Prothmann. One has to know
how far ahead the other is with his processes, so that everything proceeds handin-hand.
How would Seidel explain his work in the
core-making shop to a child? “I can explain that quite simply, for example by
means of a cup. There is a cavity, and cavities and channels in the casting have to
be filled with a core.”
The particular feature of special casting,
however, is that such large parts are cast
that they cannot be moulded by machine.
This is, therefore, a matter of handmoulding, of individual components.
These consist mainly of casings for gas
and steam turbines. The product range
also includes cast components for diesel engines, general engineering and hubs
and bedplates for wind power systems.
Such a hub has a casting weight, i.e. in the
molten condition, of 12.5 tonnes, and the
basic frame 14 tonnes.
Special casting products are almost always safety components, which have to
withstand high pressures, and are therefore subject to extremely strict quality
controls.
The casting systems are no longer up to
the latest state-of-the-art, so both welcomed the investment in the updating
of the special foundry, the first phase of
which has already been started. All the
measures should provisionally be completed by March 2008. “It needs to be”,
they both say, “because there are more
than enough orders there.”
Prothmann and Seidel receive the iron
from the melting works, where quality
controls are also applied. This is something they have to be able to rely on. At
five o’clock in the morning, when the early shift begins, they take their first tour
through the shops. Core boxes not in use
must be returned to the store. Then they
write up exactly what is to be done for
the night shift. The patterns must be at
the right place at the right time and the
mould pits prepared. This works smoothly because, as Seidel says, “The people
here work very independently and flexibly, mutually supporting each other.”
A mould can hold 20 cores, which means
that the production of the cores must be
started one week in advance. Sometimes
something goes wrong, a core can get
broken, and then rapid action is called for
because the customer is waiting.
Prothmann and Seidel have grown together with their profession: “We like going to work, every day is different, every
day brings new situations.”
P lac es and people
about their work in the core-making and hand-moulding shop
13
Annual plaque 2008
The most beautiful bridge in the world
News
75th Anniversary of start of construction of the Golden Gate Bridge
Due to its function of connecting people and places, this makes
a bridge something - and the concept is therefore often applied
in the figurative sense. But there are bridges which are also astounding for their sheer size and beauty. This applies particularly to the Golden Gate Bridge which, for many people, is still the
most beautiful bridge of all time, even though it lost its world
record as the world’s longest bridge several decades ago. Every
year, hundreds of thousands of visitors from all over the world
come to admire this aesthetic and technical masterpiece, making it the most-photographed bridge in the world.
The idea of building a bridge across the bay between San Francisco and the Marin Peninsula came about in the early 20th Century. Conditions, however, were difficult: the bay is frequently
covered by a dense blanket of mist, the Pacific creates strong
currents, and the load-bearing undersurface lies at a great depth
underwater. The bridge would also have to be strong enough
to withstand earthquakes. The 1906 San Francisco earthquake
was still fresh in everybody’s memory.
No easy task, therefore, for the civil engineer Joseph B. Strauss
from Cincinnati, who had been working on the design since
1917. Additional pillars in the centre of the bay were out of the
question due of shipping. Strauss and his colleague Charles Ellis finally put forward a proposal which surpassed every other
bridge built up to the time: a suspension bridge which would
cross the whole bay with a single span of almost 1,300 m in
length.
14
The construction work began on 5th January 1933. The two pillars are 227 m high and consist of hollow steel cells stacked one
on top of the other. These were joined together using approximately 1.2 million rivets, the last rivet made of pure gold. Over
27,000 individual strands were wound together to make each of
the two enormous steel cables with a diameter of 92.4 cm and
then attached to the banks in huge concrete anchoring points.
But in addition to the technical superlatives, it is perhaps even
more astounding how harmoniously the bridge blends in with
the magnificent panorama of the bay.
The construction work was completed in early 1937. On
27th May, the population of San Francisco was given the opportunity to cross the bridge on foot and over 200,000 people took advantage of this to closer inspect this miracle of
technology. Today the bridge is used by an average of over
100,000 vehicles per day, with the volume of traffic increasing.
Maintenance is a costly business, which is carried out by a team
of specialists, all naturally with a good head for heights. The
striking red paint coating has to be continually renewed, requiring huge quantities of the patented colour “International Orange”. In the year it was introduced, the Golden Gate Bridge,
with its span of 1,281 m, was the longest bridge in the world.
Although now only No. 8 in the ranking today, it still remains the
best-known bridge in the world.
This landmark of San Francisco was named after the natural entrance to the bay. This entrance (the Golden Gate) is 1.6 km
wide, and takes its name from the California gold rush of 1846.
European Sales Meeting 2007
On 7th September, the International Sales department of BGWGussrohrtechnik hosted the “European Sales Meeting 2007”.
The invitation met with a very positive response amongst European sales partners, and Sales Manager Manfred Hoffmann and
Sales Director Ulrich Päßler were therefore able to welcome to
Wetzlar delegations from the Czech Republic, Poland, Lithuania, Latvia, Sweden, Norway, Great Britain, the Netherlands,
France, Spain and Switzerland.
Ulrich Päßler first explained to the partners the changes introduced within the company over the last few months. The
focus of his presentation however was the description of the
changed sales strategies in the area of cast iron pipe technology. Amongst other things, he presented the remarkably positive
developments in a range of markets, without failing to mention
the targets set for the year 2008. The meeting however was
primarily directed at enabling the sales partners of BGW to report on their experiences in different markets and “segments”,
and to enable them to benefit from each other’s experiences by
means of intensive exchange.
Per S. Egeberg from the Norwegian sales partner DAHL was
able to report many positive results from the entry into the turbine pipe business. These robust pipe made of ductile cast iron
are perfectly suited for use under extreme conditions, as was
confirmed by some impressive illustrations. Just as decisive for
success in this market segment are the corresponding personnel and qualification requirements, which are ensured by DAHL
throughout the company.
Alain Garrido from the French sales partner SOVAL then talked
about the necessary activities required not only to survive in
this market, which is dominated by a strong competitor, but
to stand out positively from the competition. This urgently requires a great deal of convincing and persuasion work with regard to authorities, planners and other decision-makers. It is
also essential to ensure comprehensive supply coverage of the
market. SOVAL is fully equipped for further positive developments of this business “in the lion’s den”.
Thomas Hagenbucher from the firm of TMH THOMAS
HAGENBUCHER in Switzerland, now a contract partner of
Buderus for almost 60 years, described in his presentation the
changing overall conditions in winter tourism brought about
by climatic change. While artificial snow-making on ski slopes
had long been prohibited in Switzerland, the cancellation of the
world-famous “Lauberhorn” downhill race due to lack of snow
led to a rethink. Water supply pipe for snow cannons are operated as a pressure of up to 100 bar. The high-pressure BLS®
pipe joints, in combination with the ductile cast iron pipe, are
ideally suited to such challenges. The ease of installation is also
emphasised by the lift companies, meaning that it can be carried
out by their own personnel. Today, almost 100% of snow-making systems in Switzerland are fed by ductile cast iron pipe.
To round off the presentation session, Francisco Dominguez
Siemens from the Spanish sales partner CONSTRUTEC introduced the participants of the “European Sales Meeting” to the
special conditions of the Spanish market. Due to cheap imports
from the Far East, the marketing strategy for Buderus cast iron
pipe had to be completely reorganised. CONSTRUTEC now
considers itself as “THE” quality supplier on the Spanish cast
iron pipe market. CONSTRUTEC has successfully taken up the
cause of larger-dimensional pipe – in combination with the BLS®
joint system – together with special applications such as trenchless laying techniques. With a BLS® pipe of approx. 460 m length
and a diameter of DN 900 mm drawn-in using the horizontal
directional drilling process (HDD), a new European record for
this laying technique was set up in spring of this year at Alzira
near Valencia.
News
Sales partners of BGW-Gussrohrtechnik meet in Wetzlar
After enjoying lunch together, the guests were given a presentation on the changes applied in cast iron pipe production since
the last meeting.
The programme was
rounded off by a “mystery tour” in the beautiful Rheingau area – an
exciting day which provided some enduring
memories and many
new experiences – a
convivial ending.
15
News
Czech water management specialists
in Berlin
16
Exhibition “Ville San Tranchée”
At the request of Buderus litinové systémy s.r.o., our Czech
sales company, a practical technical training session lasting
two days was held in June at selected trenchless construction sites in Berlin.
“Ville San Tranchée” is a small but very specialised exhibition held in Roisny sur Bois, a location only a few kilometres
from Paris, where Buderus Gussrohrtechnik this year presented itself with its own stand for the first time.
With the kind assistance of the “Berliner Wasserbetriebe”, staff
of the Application Technology Department of Buderus Giesserei
Wetzlar GmbH were able to give a practical demonstration to
the interested specialists from Prague, Ostrawa, Brno and Plzen
of the frequently used press-pull procedure at several construction sites in the Berlin city area. All the process steps were able
to be shown, from pressing out of
the old pipe, to assembly of the
new BLS® ZMU pipe and the pulling-in process. Also the recovery
of now valuable scrap material
was being shown.
Michael Schneider of the “Berliner Wasserbetriebe” answered
all the questions arising from the
point of view of the customer,
and also explained the specific,
special features of the construction work. Wolfgang Rink, Application Technology Department
of Buderus Giesserei Wetzlar
GmbH, provided information on
the pipe material, the permissible
traction forces and also the applicable European standards for the material and the construction
process. Juraj Barborik, Technical Manager of Buderus litinové
systémy s.r.o. and an interpreter ensured that all questions and
answers were properly translated and understood. Construction Manager Jörg von Malottki from Tesch finally explained he
layout of the machine and assemblies, the traction head with
traction force measurement and the adapter to the water management specialists on the construction site. The visitors from
the Czech Republic left convinced of the advantages of this installation procedure, and the excellent versatility of the ductile cast iron pipe with cement mortar coating and BLS® socket
joint for trenchless installations, and their versatile use by the
“Berliner Wasserbetriebe”.
The exhibition was being held for the seventh time, and with
2,800 visitors was able to record an increase of 11%. This confirms that the subject of trenchless pipe-laying is gaining increasingly in importance for both ecological and economic reasons.
In line with the slogan “Une solution pour le développement
durable” (“A solution for sustainable development”) by the new
French President Sarkozy as the title of a brochure produced
especially for this exhibition, Buderus Gussrohrtechnik demonstrated the easy assembly of the BLS® connection, which
is ideally suitable for trenchless laying, using a BLS® demonstration unit, which has already been successfully exhibited several times.
In the shape of a cement mortar-coated (ZMU) pipe, Buderus also presented a form of external protection still largely
unknown in France, which due to its high mechanical strength
represents the ideal protection for pipe which have to be
drawn-in during trenchless laying.
The interested specialist public proved to be very impressed by
a video illustrating the laying of DN 900 ductile cast iron pipe
using the horizontal directional drilling process in Alzira in eastern Spain. (A comprehensive report on this project was given
in the last issue of inFORM.) This “European premiere” easily
eclipsed the previous “nominal width record” of DN 700 cast
iron pipe.
Ductile cast iron pipe are still used relatively rarely in France for
trenchless laying. With its cement mortar coating and the BLS®
connection, Buderus Gussrohrtechnik offers the optimum technical solution for almost all application areas.
Only one week after the “Ville sans Tranchée”, Buderus Gussrohrtechnik received an inquiry for a project in Lyon, which was
to include the trenchless laying of 130 m of DN 100 pipes using
the burst lining process. This project has now been successfully completed.
Exhibition marathon
On the safe side
From WOD-KAN
in Poland to the
„Bregenzer Rohrleitungstage“
Replacement of a
long-distance pipe
in a mining subsidence area
From 29th – 31st May Buderus Gussrohrtechnik traditionally
presented itself at Poland’s most important exhibition on water
and waste water, WOD-KAN in Bydgoszcz. The company was
also represented at the warehouse celebration and exhibition of
the firm Horne in Magdeburg on 31st May. The reason for the
event was the 100th anniversary of the company. Another company jubilee, this time the 10th anniversary at the Meiningen location, was the occasion for the staging of an in-house exhibition by HTI-Thüringen Handel KG on 4th June 2007. The Pro
Aqua exhibition took place in Bern from 5th – 8th June 2007.
Buderus Gussrohrtechnik attended the exhibition with the current BLS® range on the TMH stand. The programme continued with the Infrastructure Conference 2007 and the 5th Central German Specialist Conference “Drainage construction and
renovation”, which was held by the Saxony Building Academy in
the Leipzig Training Centre from 20th – 21st June. A little later,
on 28th June, Buderus Gussrohrtechnik attended the HTI Open
Day at the Halle location. This was followed by the BWK 2007
Annual Conference with a specialist exhibition at the “Hotel am
Kurpark” in Bad Hersfeld on 28th and 29th June and simultaneously the BWK/DWA/EVS State Association Conference in Bad
Homburg/Saar, at which Harald Oster from the Koblenz sales
team gave a presentation on the subject “Trenchless laying of
ductile cast iron pipe for water supply and waste water disposal”. According to information from the organiser, over 600
main exhibitors took part in the 24th FILDA Business Exhibition
in Luanda/Angola from 5th – 10th July, the exhibition area covering 23,000 m². On the combined stand “German expertise
for the infrastructure of Angola”, Buderus Gussrohrtechnik presented the proven BLS® system of a series of display stands.
Following a “marathon break” in August, the programme continued on 12th and 13th September with the 2nd German Symposium, “Trenchless Pipe Renovation” at the University of Siegen. In his presentation, Steffen Ertelt of Buderus Giesserei
Wetzlar Application Technology explored the subject of “Record
premiere with DN 900 ductile cast iron pipe using the horizontal directional drilling (HDD) process in Alzira, Spain”. On
21st September, Buderus Gussrohrtechnik presented at the inhouse exhibition of Schulte Tiefbauhandel in Wiesbaden and on
20th and 21st September at the DVGW/DELIWA 2007 Regional Group Conference Nordrhein-Westfalen in Münster. From
25th – 26th September, Buderus Gussrohrtechnik presented
at the “Bregenzer Rohleitungstage” together with the Tiroler
Röhren und Metallwerke AG.
The “Wasserverband Gruppenwasserwerk Fritzlar-Homberg”, a regional water supply company based in Homberg
(Efze), has been supplying 11 member towns and communities with high-quality fresh water from three waterworks
since 1957. The supply network of the association covers a
total piping length of approx. 660 km, of which about 180
km consists of purely transport or long-distance sections.
Most of the piping comprises ductile cast iron pipe supplied
by Buderus Giesserei Wetzlar GmbH.
Following a comprehensive long-distance pipe renovation programme in the mid-1990’s, the renovation of the last section is
now imminent in the form of the main long-distance pipe from
the Haarhausen waterworks to the first main WBH Batzenberg
control tank.
The old DN 350 pipe approx. 7 km long and made of grey cast
iron, was replaced by a new DN 400 pipe of ductile ZMU cast
iron pipes, partly with BLS® sleeve connections. The ZMU coating is absolutely essential, since the pipe will be laid in acidic
clay soils.
During the preparations for this work, consideration had been
given to seeking alternatives to the cast iron material previously used. During the course of this planning, however, the company, together with the engineers of Unger from Homberg, established that in one section of the pipeline, only a longitudinal
positive locking pipe system could be considered, since former
deep mining locations in the Borken-Stolzenbach brown coal
mining area constitute an incalculable risk of mining subsidence.
In order to exclude the possibility of damage to the long-distance pipe, a clear decision was made in favour of ductile
Buderus pipe with BLS® sleeve connections.
The installation company Feickert of Witzleben had no problems with laying the pipe. Minor course changes with angles of
up to 3° were made without impeding the course of the construction work. Concrete supports were not necessary and all
shaped components, which are also equipped with the BLS®
sleeve system, were integrated into the section.
The “Wasserverband” is certainly “on the right side” in choosing this piping system because the highest pressure stages (max.
14 bar) also occur in the area subject to the greatest risk. The
board and company management are convinced, with the decision for the BLS® system, that they have installed a sustainable
element to ensure a continual fresh water supply.
News
From May until the end of September, Buderus Gussrohrtechnik once again featured heavily on the circuit of specialist exhibitions, conferences and trade fairs. We will be reporting on the autumn events starting from October in the
next issue of inFORM.
17
Buderus Spezialgießerei receives Supplier Award
Easier, cleaner, more efficient: the new
chamber filter press
News
On 8th August, Siemens Power Generation not only celebrated
the 80th Anniversary of the Mühlheim works, but also the delivery of the largest steam turbine in the world for the Finnish
nuclear power station Olkiluoto 3.
The main suppliers of this mega-project were also invited to
join in the celebrations. In recognition of the reliability and quality, Siemens Power Generation granted a Supplier Award. The
special foundry of BGW had supplied bearing casings and covers
for the huge turbine.
Karlheinz Bangel, Managing Director of BGW, accepted the
award from Helmut Schmitt, Manufacturing Director of Siemens Power Generation.
18
Special Casting continues investment
As part of a total investment of around €7 million for the extension of the special foundry, work on the first phase has now
begun. This initial work includes the construction of a new sand
preparation plant.
All the work will provisionally be completed in the first quarter of 2008.
A comprehensive report on the investment measures will be
published in the next issue of inFORM.
The hot air cupola furnace of TRM produces approx. 75,000
tonnes of basic iron for spheroidal iron per year for GKG and
TRM.
Since the foundry is located in the middle of a residential area,
perfectly functioning furnace extraction is essential. The extracted furnace gas is cooled by water after the coarse separator. At the same time, dust particles carried along in the gas flow
are also sprayed. The dirty water is separated from the gas in
the disintegrator – a rotor which produces the suction for the
extraction – and then transported by pumps to a sludge container. The exhaust gas is cleaned of remaining water in the drip
catcher and then burnt in the recuperator. The energy obtained
is used for heating the hot air for the cupola furnace. Energy is
also fed back into the company’s own heating system by means
of heat recovery.
The gas washing is designed as a circulatory system, i.e. the dirty water has to be cleaned of sludge, which was previously carried out by means of a rapidly rotating centrifuge, a decanter.
Since the existing decanter had reached the end of its service
life, it had to be replaced. The choice of the system fell on a
chamber filter press. Because this reduces the moisture content
of the sludge by up to 30%, less water has to be transported
when transporting the sludge to the disposal unit. The costs for
the recycling of the furnace sludge are also reduced. A new decanter would also have been more expensive than a comparable press, and would have incurred repair costs during ongoing
operation. The dry sludge now falls directly into a large box under the press, where it is stored until being transported away by
truck. Previously, the sludge had to be collected in a crate and
taken to an intermediate dump on the works site every four to
five hours.
The order for the manufacture of the chamber filter press went
to Wistorf Umwelttechnik GmbH. The installation of the piping
and electrical cables progressed quickly, with the result that the
first pressing was able to take place on 18th August. The removed sludge now reaches a dry substance content of over 70%.
Internal transport has also been simplified, and the cleanliness
of the sludge handling area significantly improved.
BUDATOP: A new product line for the
company jubilee
The mould system is the core element in the production of cast
components. For the actual casting, the negative moulds are
pressed at high pressure out of a sand-clay mixture.
Over the course of the years, various components are subject
to particular wear – specially in the case of the hard-working
mould system at GKG. During the course of its operation, this
complex machine has already produced around 4 million mould
boxes.
In order to be able to better plan future preventive maintenance measures and to produce more reliable maintenance and
repair schedules, GKG has commissioned BERNARD + Partner, an engineers’ office in Hall, to examine the highly-stressed
steel frame of this mould system in order to determine its current condition and expected service life.
In order to do this, drawings of the steel construction which had
previously existed only on paper had to be converted into electronic form (CAD). The system was also equipped with inductive travel sensors, expansion measurement strips and vibration
sensors in areas subject to high stresses, and every single movement recorded and monitored by computer over a period of
about three months.
The result is a clear description of the critical stress areas, which
will form the basis for preventive maintenance measures. The
objective will be to keep this already 20-year old “lady” (once
lovingly christened “Helga” by the management at the time) up
to the latest state of technology for at least as long again.
Just in time for its 100-year company anniversary, Buderus Kanalguss GmbH has extended its range by including the new BUDATOP cover series. This is a multi-functional and innovative
product line which offers the user decisive advantages with regard to weight, handling and safety. Thanks to the design of the
stainless steel locking device, the cover can only be removed
after first unlocking it. Environmental effects such as moisture
and temperature no longer have any effect on the functionality
of the cover retention for light shaft covers.
The product has many striking features, some of which deserve
special mention: the easy-to-install multi-functional frame, for
example, levels covers with guide rings of cast iron or concrete. The concrete/cast iron frames can also be supplied. The
centred guide ring also provides benefits for installation, enabling roads to be opened for use more quickly. The possibility
of a large inclination angle facilitates installation on sloping sections. The spring lock is replaceable. The cover is permanently secured by positive locking, since it does not age under traffic conditions in the same way as a force-fit. The blockage of
the lock and opening recesses are prevented by bevelling. The
damping insert with horizontal and vertical impact damping is
easily replaceable. Weighing only approx. 40 kg, this light cover
can be opened and lifted out using standard tools, despite the
above innovative elements. Standard covers can also be used in
the frame at any time. And: if required, the cover and frame can
also be supplied with designs or special inscriptions.
N ews
Long life for “Helga”: Test of the mould
system at GKG
19
BGWDay
zieht
Bilanzof
imthe
STOPschild-Prozess
Open
onpositive
the occasion
100-year Jubilee
A bout us
On 18th August the great day arrived – in brilliant sunshine the organisers were also able to beam with joy, because all their efforts had been worthwhile – a wonderful
festival was celebrated by Buderus Kanalguss GmbH in
Staffel to mark the 100-year Jubilee of the company.
20
Old and young had come to share in the celebrations and there
was something to see, do, smell, hear and taste for one and all.
The interest in the guided works tours was great, with several
groups doing the rounds simultaneously, and visitors were also
able to take the designated routes on their own. For those who
had never seen a foundry from the inside, it was a great experience to see the production of drainage covers live. The sparks
flew, the molten iron flowed into the moulds. The fire, water,
noise and smell gave the visitors a first-hand impression of the
realities of a foundry.
“I will see the drainage covers that I step on everyday in a completely new light in future,” said one visitor from Elz.
Manfred Künze, Managing Director of BKG, was gratified by
the series of official congratulations, accepting amongst other
things the best wishes of the town of Limburg, delivered by the
1st Councilwoman Babette Täpper, and the DGV, represented
by Dr. Norbert Wichtmann.
All the visitors were pleasantly surprised by the varied accompanying programme. The musicians from Oberzeuzheim with
their brass band music ensured a festive mood in Hall 4, which
had been decked out as the “party tent”. Rock, pop and hits
were provided by DJ MSW, and there was, of course, also plenty for the children and young people. In addition to the bouncy
castle which was climbed again and again, there was also the
popular face-painting, the designs most in demand being butterflies and dolphins. Badges could be made, and the fire services, represented by the Buderus Works Fire Brigade and the
voluntary services of Staffel, Hadamar and Dorndorf were a real
attraction for both the adults and the children. Up went the
turntable ladder, so that the Staffel works and the animated celebrations could also be seen from a bird’s-eye view. The raffle
was very successful, thanks to some very tempting prizes. The
first prize, a set of garden furniture from the product range of
Buderus Kanalguss GmbH, was presented to the lucky winner
from Hadamar by Manfred Künze. The proceeds of the raffle
went to the kindergartens in Elz and Staffel.
Opinions at the end of the celebrations were unanimous: “That
was a successful jubilee celebration.”
From the “Carlshütte” to the Staffel works
Former apprentices’ meeting in Wetzlar
50 years ago, 33 young men took their apprentices’ examination in the former Wetzlar works of the “Buderus’sche Eisenwerke”, and on the same day, exactly half a century later, 24 of
them met up again on the very same spot. One of them – Herbert Leonhardt – had devoted a great deal of effort to arranging this meeting of former colleagues. Joy abounded as Karlheinz Bangel, Managing Director of BGW, welcomed the “journeymen” who had arrived from all parts of Germany, and in a
brief overview told them about the many changes that had taken place in the former Buderus group since 1957. The guests
found the current situation of Buderus Giesserei Wetzlar GmbH
particularly interesting. Information was provided on the product range, turnover and personal situation; a grin went through
the ranks when the guests learnt that the company was today
once again desperately looking for hand-formers. Many of them
had learnt this trade here, including Karlheinz Bangel himself.
This was of course known in “insider circles”.
This was followed by the “active” part of the meeting. Equipped
with smocks, helmets and radio systems, the former apprentices set out on a works tour, finding out during its course that:
“Yes, a great deal has changed”.
In conclusion, Karlheinz Bangel presented each of the guests
with a plaque designed especially to commemorate the occasion – naturally made from cast iron.
For the rest of the day, Herbert Leonhardt had put together
a programme which, amongst other things, included a stroll
around the town and a visit to the “Jägerstollen”.
A bout us
The Staffel works was founded on 30th May 1900 by the
factory owner Carl von Schlenk zu Barnsdorf. The foundry
business was given the name of the “Carlshütte” and went
into operation in 1901. For the surrounding communities,
this heralded a new era: good economic possibilities and the
prospect of jobs created hope of better living conditions. In
the early years, the factory produced shaft covers, gullies
and drainpipes.
On 8th August 1907, the “Carlshütte” was taken over by
the “Buderus’sche Eisenwerke”. The works was then renamed the “Buderus’sche Eisenwerke, Carlshütte Dept.”.
Immediately following the acquisition, Buderus began with
the extension of the ironworks. Manufacture of cast drainage equipment for the water supply and disposal of towns
and cities was instituted in 1911. The water tower with its
capacity of 150 m³ – today the landmark of the works – was
erected in 1928. After the Second World War, the works underwent further major expansion, producing light and heavy
cast drainage components, shaped components, drainpipes
and also petrol and fat separators.
Buderus Kanalguss GmbH today produces high-quality and
durable function components for road and bridge drainage,
tree protection systems and for the equipment of pedestrian
areas; the Staffel works, thanks to the very latest production
equipment and the know-how of its employees, is a technological location characterised equally by tradition and power
of innovation.
21
A bout us
Plenty of fun at the 1st Buderus Giesserei Wetzlar GmbH Family Day
22
The weather was not too
unkind, the rain stayed
away and the good mood
at the 1st BGW Family Day
was more than enough to
replace the sometimes
lacking sunshine. Around
1,000 employees and their families accepted the invitation of
the company management on Saturday 8th September, to celebrate together on the meadow in front of the Technology Hall,
which had been converted into a stylish festival setting.
After Rolf Glessing, Karlheinz Bangel and Ulrich Päßler had welcomed the employees and their families, the full programme
got underway.
The eagerly anticipated Gaudi football match of the Management against the Works Council was held on a huge, inflatable “table football” pitch. In a lively but fair meeting, victory went to the “Black Devils” over the “Red
Socks” during extra time by means of the “Golden
Goal” rule, after finishing in normal time as a draw.
After the men had left the “pitch”, the children took
over control of the huge “table football game” and
carried on playing happily. The day offered plenty to
do for children and young people; bouncing, climbing, face-painting and, in the wax-hand factory, they
could even make wax models of their own hands.
And as is only appropriate for a foundry, some
proper casting could also be practised – not turbine housings or pipes of course, but tin smilies.
Sascha Furtner had made
a casting device especially for the Family Day, and
throughout the day could
hardly save himself from
the crush – not only from
the children. The works
tours through the halls of the pipe works and the special foundry were also a popular attraction.
“We work together, and this work in the foundry places high demands on our employees, so it is important that we also sometimes celebrate together and offer our employees the possibility of getting to know the background of our business”, said
Karlheinz Bangel.
The trainees who had taken over the sale of tickets for
the raffle also had plenty to do: Around 1,200 tickets
changed hands.
Excitement mounted as the two lucky fairies,
Emilie and Mimmi, reached into the ticket barrel at
around 4 pm. The two main prizes, balloon trips,
were cheered and supported by a fanfare from the
Victoria-Combo, who provided rhythmic entertainment throughout the whole day.
The proceeds of the raffle went to the “Lebenshilfe
Wetzlar-Weilburg e.V.”. Günther Berghäuser, treasurer of the charitable organisation, expressed his
thanks for the donation, not failing to mention that
the future investments of the organisation were financed largely by donations.
Action days in Wetzlar and Staffel
In the Staffel works, 33 volunteers had their hands full on 28th
July to complete two major projects. The complete concrete
production and mechanical processing were whipped into
shape, thorough cleaning carried out, machinery painted and
traffic routes marked out clearly again. After all that hard work,
the lunch tasted particularly good.
This was followed on 11th August by the second action day in
Staffel: 25 employees turned up to clean out the fully automatic
mould system and the melting shop for the forthcoming Open
Day on the occasion of the 100-year company jubilee.
The communal lunch was sponsored by a caterer who also purchases grill and paella pans from BKG, meaning that the quality
of the products supplied could also be tested at the same time.
During the concluding tour on both days, everyone was able to
see for themselves: the “after” was a significant improvement
on the “before”.
People were satisfied with their efforts, and that was the main
thing!
A bout us
As part of the “STOPschild” process, action days have been
held at BGW and BKG, during which the “physical effort” of
employees was applied to do everything possible in order to
make the working environment prettier.
Under the slogan “Our clean factory”, 117 employees pulled
on their blue overalls on 30th June in Wetzlar to paint production halls and floors and plant flower boxes in order to make
the works site look more colourful and friendly. Plenty of clearing out, tidying up and cleaning also went on. Trainees, employees from administration and production work side-by-side; the
company management also got stuck in.
During the following lunch, there was plenty to talk about, and
people also asked when the next action day was being planned.
The excellent mood was amply demonstrated by the fact that
the last volunteers only left the works at 17:00, although the official end had been announced at 13:00.
Action days will be held again in Wetzlar next spring and autumn.
23
New classic „STOPschilder“
As part of the “STOPschild” process, two further suggestions
have been implemented, which met with general approval as
classic “STOPschilder”, and will bring about an annual saving
of € 21,000.
Under the classic system, the two employees submitting the
suggestions will receive a total amount of € 6,200.
A bou t us
Karl-Dieter
Zimmermann
addressed the problem of
the residual iron collecting in
casting machine 1. This residual iron caused damage to
the sealing rings, causing the
machine to leak.
The resulting repair meant
that the machine had to be
shut down for an extended
period. This problem was
permanently rectified by an
extension of the intrusions
at the iron chill and redesign
of the tip end housing section with the spray protection hood.
Georg Martinetz looked at
the question of the previous
practice of sending cast components to an outside company to be sand-blasted on
the inside and subsequently coated. This not only incurred higher costs for the
coating, but also substantial
transport costs.
Georg Martinetz suggested
purchasing a mobile sandblasting machine in order to
be able to sand-blast the inner area and coat the components in-house.
We thank both these gentlemen for their suggestions and
hope to receive many more
good suggestions from our employees because getting involved
is well worthwhile.
24
A cast iron pipe worth looking at
Buderus Giesserei Wetzlar GmbH
joins the Optic Course Project
Wetzlar will become richer by one more attraction this year:
as a sort of experimentation field extending over a length of
around two kilometres, an Optic Course will demonstrate optical phenomena to people of all age groups in a playful and entertaining way. The project originated from the co-operation
of the town of Wetzlar with almost 30 companies, schools and
interested residents. The idea goes back originally to a town
marketing concept. Dr. Jürgen Erbach, a professor of property
management and urban development from Wetzlar, suggested
making Wetzlar even more attractive to visitors by means of
an “experience course”. The course was to be devoted to the
theme of optics. The idea was applauded, although it was not
basically self-evident, since although the optics industry has long
formed an important part of the economy of Wetzlar, its actual
importance has declined, particularly in comparison to heavy
industry.
Consisting of around two dozen stations, the course will invite
visitors to make the complete circuit – from the physical principles of light to the marketplace of the future, a forum for innovations in the optics industry. Visitors will be able to stage a laser show themselves, create moving images with a “camera obscura” or see themselves again and again in the hall of mirrors.
Another special feature: Together with Buderus, the Optic
Course is being sponsored by another company not belonging
to the optics industry. An imposing installation is being created
in co-operation with the firm of Feldmann GmbH, a specialist
in precisions cuttings and thin coating technology: In an 8-metre
long cast iron pipe with a diameter of 2 m, Feldmann will install
a technology financed by the company, the so-called “opto-kinetic balance”, which demonstrates how the eye as an organ of
the brain acts on the mechanics of the body, and what role light
plays in this process. The gigantic construction will soon be on
display in the Wetzlar Colchester complex. The preparations
are going ahead at full speed.
The “sprayers” examine the cast iron pipe, which will soon be turned into a
glowing work of art
As part of a graffiti campaign, the pipe will be transformed by
sprayers into a glowing work of art. The theme of light will thus
be taken up by the outer decoration of the pipe, while it will
also be shown how a cast iron pipe looks as it comes out of the
centrifugal casting machine, i.e. glowing.
50-year anniversary of the Berlin-Marienfelde construction training site
Foundry mechanic – a career with a future!
BGW donates cast iron pipe
Without investment in training, any company quickly loses the
link to the future, and this particularly applies to trainee specialists in foundries.
The employment market poses risks for school-leavers, but
also offers them opportunities: training as a foundry mechanic
in particular is a job with a guaranteed future. Investment in the
extension of the foundry and the associated increased production creates a growing demand for qualified personnel. A further motivation to invest in in-house training is, of course, the
serious shortage of specialists prevailing in Germany at the moment.
At Buderus Giesserei Wetzlar GmbH, 5 new trainees began
their apprenticeship on 1st August 2007, joining the existing 13
trainees. Three of them will be learning the profession of foundry mechanic. BGW is thus primarily covering its own personnel requirement. A similar number of trainees will also be taken
on next year.
On 18th June 2007, the Vocational Training Works of the “Fachgemeinschaft Bau” celebrated
its foundation of 50 years ago.
This important jubilee for the
city and the construction industry was attended by high-ranking Berlin politicians and representatives of the construction business.
They emphasised the importance of the training facilities for the
training of qualified specialist personnel for the construction industry. In the quickly developing capital, in particular, the renovation and maintenance of the infrastructure by motivated and
well-trained specialist workers was of crucial importance. The
field of civil engineering/piping installation is being faced by ever
new challenges, and the variety of materials used require ever
new skills and abilities.
There was, therefore, no question that BGW would hesitate to
Our 4 trainee foundry mechanics, from left: Dennis Weiser, Danny Silva-Serafim, Burak Vural and Carl Bonarius
support the training and examination of trainees by providing
ductile cast iron pipe of the new “blue generation”.
Friedhelm Kleinblotekamp, Sales Manager Germany, and Wolfgang Rink, Application Technology Manager, also included in the
package the required fittings and accessories, TYTON® sealing
rings, BRS® thrust locking rings and laying equipment.
“Understanding requires hands-on experience” is the motto. In
order to make the training as realistic as possible, trainees must
also be able to work with the materials which represent the latest status of the technology, and are also used by the “Berliner
Wasserbetriebe”. In the interests of the cast iron pipe industry,
it is therefore also ensured that competent training in pipeline
installation is carried out using products made of this ductile
material. The trainees must develop confidence in the material, but above all also in their own capabilities, in order to be
ready for practical civil engineering. In view of the current difficult situation in the construction sector, it is particularly important to ensure the adequate training of motivated, well-trained
young people, who can fulfil the requirements placed on them
quickly and carefully. Thanks to this donation of materials by
Buderus, the construction training site will be in a better position to achieve its training objectives and use its restricted funds
for further important materials and test equipment.
Due to their training, foundry mechanics specialising in
hand-form casting are employed in the production of
casting systems and cast components, insertion of model
devices and permanent moulds, operation of equipment
and devices for the control and regulation of melting systems and for manual and automatic mould production.
Focal areas of the practical and theoretical training:
Reading, application and production of technical documentation
Planning of working procedures, checking and assessment of the results
Cutting, moulding and jointing
Basic techniques of moulding, melting and casting
Fusion welding and thermal cutting
Use of casting systems
Production of cast components
Heat treatment of metallic materials
Insertion of mould materials for moulds and cores
Maintenance and quality assurance
A bout us
Foundries need specialist
workers
25
A bout us
Cast iron pipe technology
Sales force conference, this time with
excursion
This year’s Buderus Giesserei Wetzlar GmbH sales force conference took place on 3rd and 4th April in Willingen. The first
day was dominated by information for the field staff of cast iron
pipe technology sales. After Ulrich Päßler, Managing Director of
BGW, and Friedhelm Kleinblotekamp, Sales Manager Germany,
had welcomed the team, Thomas Rosbach, Product Manager,
cast iron pipe Systems, once again clearly emphasised the advantages of ductile cast iron pipe in comparison with competitor materials.
Bruno Solenthaler, Managing Director of the company of Thomas Hagenbucher, then reported on the successful introduction
of the new generation of pipe (with BLS® restrained / blue pipe)
into the Swiss market.
A very interesting video showed the laying of 11.5 km of DN
100 - DN 250 ductile cast iron pipes (including 1,000 m of underwater piping, 270 m laid in rock with a 100 m vertical installation and 260 m pipes in a tunnel) for the Oldenkessel snowmaking system. (See pages 4-5 of this issue of inFORM for a
more detailed description of this project).
Following a presentation with training on the operation of
the construction database for tenders and submission results,
which is recently been available to our external sales force, the
participants set out on an excursion. The destination was the
Mühlenkopfschanze (Mühlenkopf ski-jump) newly erected in
the year 2000, following the demolition of the existing ski-jump
near Willingen in the Waldeck-Frankenberg district, which at
145 m is the longest ski-jump in the world. A total of 11 World
Cup events have been held here since 1995.
After the journey by cable car (from 615 to 738 m), followed
by a further 28 m by lift, the participants were able to enjoy a
view from the so-called Adlerhorst (Eagle’s nest) over the complete ski-jump and down into the 35,000-capacity stadium. It is
a fascinating (and sometimes also frightening) feeling, to sit high
up here like Martin Schmitt, Janne Ahonen, Alexander Herr or
Michael Uhrmann.
On the return to the valley station, Ulrich Dietz of the Willingen
Municipal Works took over the expert tour.
Since the snow reliability cannot be assured in Willingen, the
organisers also have to rely on artificial snow. The supply of
the system (the water is taken from a nearby stream) and feed
for the snow cannons is carried out by a pipeline of ductile cast
iron pipe supplied by Buderus. The water arrives at the nine
outlet points with a maximum pressure of 15 bar. At this high
pressure, a water-air mixture is blown high into the air at correspondingly low outside temperatures. The mixture then falls
This is where the jumpers usually warm up
26
back to earth, crystallised as artificial snow. The snow cannons
are equipped with 312 individual nozzles, which are arranged in
four rings. The outer ring transports the water-compressed air
mixture, while the others atomise clean water which has been
filtered several times. The nozzles are heated to prevent them
freezing shut. In addition to inspecting the water system and
the operating centre, the visitors also took a close look at some
snow cannons located on the site of the biathlon arena.
By the way: All ski areas in Willingen are to be provided with artificial snow-making systems. Around 14 km of BLS®/ZMU TZ
DN 80 - DN 250 pipes was supplied for this purpose in the 3rd
quarter of 2007. A report on this ambitious project, in this case
from the Ettelsberg, was published in the “Hessenschau”on
15th August.
On the second day, the members of the sales force reported on
their activities in the individual sales territories.
For information: Guided tours of the Mühlenkopfschanze take
place every Tuesday and Friday.
Further information can be found at:
www.weltcup-willingen.de
Buderus Foundry Management sells
cast iron pipe division
Buderus Foundry Management S.àr.l., Luxemburg, will sell
its cast iron pipe division to the Austrian Buy_Out Central
Europe II Beteiligungs-Invest AG. The corresponding contracts have now been signed. The cast iron pipe division
comprises Buderus Giesserei Wetzlar GmbH in Wetzlar and
the Tiroler Röhren- und Metallwerke AG (TRM) in Austria,
Buderus litinové systémy s.r.o. in the Czech Republic and
the sales companies in the United Arab Emirates and the
USA. After the sale, BFM will still retain a share of 25.1%
of the cast iron pipe business. The takeover is subject to
the agreement of the monopolies commission. The sale is
planned to come into effect at the end of the year.
Buy_Out Central Europe is a shareholding company founded in spring 2007, which concentrates on investments in
medium-sized companies in the German-speaking area. The
objective of the new investor is to strengthen the existing
locations and take advantage of existing opportunities in the
eastern European market.
BFM will also retain its share in Buderus Kanalguss GmbH
(Staffel), Buderus Feinguss GmbH (Moers and Hirzenhain),
gb Implantat Technologie GmbH, Buderus Separatory Polska (Rybnik), Guss Komponenten GmbH (Hall in Tirol) and
the special casting business (Wetzlar).
Jubilees
40-year Jubilees
Buderus Giesserei Wetzlar GmbH
Irmtraud Hahn, 1.8.
Manfred Hoffmann, 1.9.
Rainer Menke, 26.9.
Alfred Goß, 12.10.
Buderus Kanalguss GmbH
Dietmar Groh, 15.8.
Jürgen Böing (42) has been appointed as Managing Director of
Buderus Feinguss GmbH with effect from 1st October 2007,
and has also joined the management of gb Implantat Technologie GmbH.
After training as a machine fitter, Jürgen Böing then completed
his studies to obtain degrees as “Dipl.-Ing.” and “Dipl.-Wirt.Ing. (FH)” (“Graduate Engineer and Business Manager”).
He began his professional career with an engineering company
as Assistant to the Sales and Marketing Manager. After various
posts and responsibilities within the company group – including Regional Sales Manager, Sales Centre Manager in Germany,
Worldwide Sales Manager and Product Management of Standard Products – Jürgen Böing was responsible for the North
American business as Executive Vice President.
This also included responsibility for local manufacturing, installation and service. This position required a three-year stay in
the United States of America. Subsequently responsible for the
North and South American business, he supervised the company as Business Development Manager during the course of a
take-over through its integration into a German-based, multinational concern.
Jürgen Böing is married and has two children.
Change in the
Works Council of BGW
As the Chairman of the Works Council of Buderus
Giesserei Wetzlar GmbH, Uwe Dzewas, resigned
from his post for personal reasons, Norbert Lewalter
was elected Chairman of the Works Council and Jürgen Menger as Vice-Chairman at the meeting of the
Works Council held on 28th August 2007.
25-year Jubilees
Buderus Giesserei Wetzlar GmbH
Karl-Heinz Bastian, 2.8.
Michael Diehl, 2.8.
Dieter Ludwig, 2.8.
Thorsten Uhrhan, 2.8.
Peter Schlicht, 1.9.
Buderus Kanalguss GmbH
Axel Herber, 2.8.
Andreas Jung, 2.8.
Mario Kuhmann, 2.8.
Dirk Metz, 2.8.
Guss Komponenten GmbH
Markus Eberl, 1.9.
Franz Pichler, 1.9.
Manfred Unterlerchner, 1.9.
Imprint
Publisher:
The management of Buderus Foundry Management S.àr.l.
Editorial:
Dietmar Fischer, Andrea Heddrich, Iris Reinhardt, Elvira Sames-Dickopf
Contributors to this issue:
Thomas Ammon, Jürgen Böing, Hans-Werner Demel, Ivana Drozdová,
Steffen Ertelt, Rolf Glessing, Silke Hackl, Horst Herbst, Manfred Hoffmann, Tilo Kühn, Sigrid Lettau, Ursula Mandler, Stefan Pohl, Lutz Rau,
Karl-Wilhelm Römer, Hanno Schmidt-Gothan, Bruno Solenthaler, Uwe
Strich, Harald Tschenett, Christian Walden, Alexander Wilhelm, Hermann Zeilinger
Graphic design, setting and lithography:
K13 Werbung und Medien, Wetzlar
Pictures/sources:
Page 8 and 9: www.rwe.com, Siemens Power Generation, picture press
Unless otherwise specified, the rights to photos, drawings and other illustrations are the property of Buderus Foundry Management S.àr.l.
Print:
Druckerei Nejedly GmbH, Friedrichsdorf
Address of the editor:
inFORM
Sophienstraße 52-54, 35576 Wetzlar
Telephon: (0 64 41) 49 22 16 Telefax: (0 64 41) 49 16 22
E-mail: [email protected]
© Buderus Foundry Management S.àr.l.
A bout us
Jürgen Böing –
New Managing Director
of Buderus Feinguss GmbH
Next issue: 15. März 2008
27
The finishing touch
Design
for public
facilities
Design creates harmony and gives the material expression:
Cast iron conveys security and tranquillity
Buderus Kanalguss GmbH
Elzer Straße 23-25 D-65556 Limburg
Telephon: 0 64 31 - 29 10 Fax: 0 64 31 - 29 11 68
e-mail: [email protected]
www.buderus-kanalguss.de