A BRUGG GROUP COMPANY
Project
In the French twin municipality of Veigy-Foncenex, a reliable pipe system was to be laid for a biogas plant near Lake Geneva. The biogas site was founded five years ago, and a new building was added in 2023. A local heating pipeline with our FLEXSTAR UNO pipes was installed to ensure a flawless energy supply for the new part of the building.
Execution
Two rings of FLEXSTAR UNO, each 200 metres long, were supplied and laid for this construction project. The aim was to connect the pre-pit of the biogas plant with the boiler room. The construction work took a total of two months, whereby the actual laying of the pipes was completed within two days.
The most important construction stages were the construction of a new building and the laying of the pipes under the floor slab. In the first stage, the pipes were laid in the new building before the concrete slab was poured. The next stage involved laying the trench to the boiler room. Thanks to the good weather and the easy handling of the FLEXSTAR pipes, the installation was simple and uncomplicated. Now the biogas plant can supply the region even better with renewable energy in the future.
Project
An innovative district heating project was completed for Centro Manutenzioni in San Bernardino in the canton of Grisons. The project consisted of the installation of CALPEX and CASAFLEX lines to supply the new fire brigade building with sustainable energy.
Execution
The construction work started in September 2024 and was carried out in several stages.
The CALPEX PUR-KING was laid in dimensions 75+75/202 (DN 65) and 63+63/182 (DN 50) over a length of 48 metres. These CALPEX lines are responsible for supplying the building with heat, hot water and cooling air by two heat pumps.
The CASAFLEX UNO, with a length of 86 metres and dimension DN 65, was used for the regeneration of probes that are heated by solar collectors. These probes were specially designed for the use of renewable energies. One of the greatest challenges of this project was the precise coordination of the installation work due to the demanding topography and the specific requirements of the solar collectors and heat pumps. Thanks to the close collaboration with the engineering office and the partners involved, it was possible to complete the project on schedule.
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Project
We installed our highest-quality PEX pipe system CALPEX PUR-KING in the Swiss municipality of Lostorf for our customer, the building technology association suissetec. Together with our partner, we installed a district heating network with the best thermal insulation, which now connects the existing local heating network with the new building.
Execution
The construction site took place at the suissetec Campus, the suissetec training centre, on Grundstrasse in Lostorf. We installed a total of four pipes for the new building. We installed two pipes each for the flow and return of the district heating network in the dimension DN 100 with an inner diameter of 110 mm and an outer diameter of 202 mm.
The coordination between logistics and assembly went smoothly and without any loss of working time, despite two drums. While the first drum was being delivered and unwound, the transport lorry drove back to Kleindöttingen to pick up the second load. Meanwhile, our fitters aligned the pipes in the trench and prepared the house connections. The second drum was then delivered, the pipes unloaded, aligned in the trench, connected to the existing pipes and insulated.
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Project
In the Swiss municipality of Aeugst on Albis, we installed our highly insulated CALPEX PUR-KING pipe system for the Götschihof energy network. Together with our partner Builcon Energie AG, we installed an efficient district heating network for the future operation of the local energy systems and residential properties of the Swiss National Donation and the Solvita Foundation's residential home.
Execution
An energy network will be created at Götschihof. This will consist of a biogas plant, a combined heat and power plant, several photovoltaic systems and a wood chip heating system. We constructed the necessary district heating pipeline in rural Aeugstertal to connect these individual energy generators.
Our fitters laid four CALPEX PUR-KING pipes in the shortest possible time. The dimensions installed were DN 40, DN 50, DN 63 and DN 68. The longest section was 113 metres from the woodchip heating system to the second-largest heat distributor with photovoltaic system. Another shorter pipe was installed between the two almost completed photovoltaic systems. Our team then successfully installed four house entry bends under the floor slab in the new central building.
Projekti
Etusijalla elinkaarikustannukset ja vastuullisuus, Kuunsilta 10 Kuopio
RP-Karmi Oy toteutti juuri 21 rivitaloasunnon kohteen Kallaveden rannalle Kuopioon, asunto-osakeyhtiön omistamalle rantatontille.
Haaste
Brugg-Pema Oy oli mukana projetissa ja toimitti vajaan kilometrin verran aluelämpöputkia (CALPEX, COOLFLEX) työmaalle. ”Kohteesta halusimme tehdä elinkaarikustannuksiltaan järkevän omistusasuntokohteen”, kertoo Hannu Haaranen, RP-Karmi Oy:stä. Kohteen elinkaarikustannuksia tarkasteltiin lämmönaluejakoverkoston osalta ja haluttiin maksimoida lämmönsiirtyminen maalämpöjärjestelmästä asuntoihin.
Project
In the canton of Basel-Stadt, an efficient pipe was laid in the village of Riehen for the Fondation Beyeler, the internationally renowned museum of modern and contemporary art. Our best-insulated CALPEX pipe was used to supply the new museum building with district heating and cooling in the future.
Execution
Construction work began in November 2023 and extended over three stages. A total CALPEX pipe length of approx. 800 metres was installed in the project. The aim of the work was to connect the new museum building with the pavilion and connect it to an existing district heating network. A special feature of the project was the production of a special part. This was a ventilation system, which was agreed with the customer before construction work began and installed accordingly. During the construction work, the customised part had to be slightly adjusted on site by the regional welder.
One of the biggest challenges in the CALPEX project, in addition to the complex construction of the customised product, was the terrain next to the new museum building. In order to protect the large old trees, the pipes had to be laid carefully in the trench - which our fitters mastered in exemplary fashion.
Projekti
Attiswilin kunnassa Bernin lähellä 3 kerrostaloa yhdistetään yhdeksi lämpöverkoksi. Raaka-aineen keskitettyyn lämmitysjärjestelmään toimittavat itse kuntayhteisön jäsenet – he käyttävät lähimetsien puuta.
Haaste
Talon lähestyvien harjannostajaisten takia CALPEX-putki pitää asentaa nollakelillä. CALPEX-putken esilämmittämisen kaltaisilla lisätoimenpiteillä asennus saatiin suoritettua ongelmitta. Alpiq AG:n tiiminvetäjä Rolf Steffen on CALPEX-putken onnistuneen asennuksen jäljiltä erittäin tyytyväinen. ”Projekti osoitti, kuinka hyvin yhteistyö putkiasentajien, Meier Tobler -yhtiön ja Brugg Rohrsystem AG:n välillä toimi projektivaiheesta toteutukseen asti. Juuri tällaista kunnon tiimityön pitääkin mielestäni olla.”
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Project
For the world-famous Swiss municipality of St. Moritz, we installed a connecting line in a quick night operation. Our flexible and cost-effective CASAFLEX pipe was successfully installed between the Scala cinema and the Kulm Hotel, which has a heat generator.
Execution
Since the road could not be closed during the day, the installation had to be moved to the night. From 8:00 PM to 2:00 AM, our installers were actively working in the trench and laid the CASAFLEX pipe in record time.
After installation, the trench was immediately closed so that the road could be reopened to traffic the next day.
Project
For the client Hans Brun AG, our installers implemented an efficient district heating pipeline in the Swiss municipality of Bassersdorf in September 2023.
In seven construction phases, our flexible CASAFLEX and rigid PREMANT pipe systems were used to connect a residential area with several highrise buildings to an existing heating.
Execution
Within six weeks, we installed a district heating pipeline for 14 highrise buildings for the client. Given the limited time available for this project, we are particularly proud that our installers were able to complete all pipe installations within the allotted timeframe successfully.
Our PREMANT pipes were used for long, straight sections, while our CASAFLEX pipes were used for house connections. The tight space constraints onsite did not pose an obstacle. With skill and experience, our team overcame these challenges, allowing the pipes to be easily uncoiled from the drum and aligned in the trench.
Project
In Carona, a small village in the popular Swiss canton of Ticino, an extensive district heating pipeline was laid from the heating plant to the centre of the village. Our reliable PREMANT UNO and CASAFLEX DUO pipes were used to optimise the supply of heat energy to the residents.
Execution
The main heating network for Carona was built twelve years ago. Over the years, it has been repeatedly extended and expanded. In the course of these expansions, the largest construction phase was completed in 2019. We laid an extensive district heating pipeline from the heating centre to the village centre. Our rigid PREMANT UNO pipe was used for the straight pipeline. The flexible and bendable CASAFLEX DUO pipe, on the other hand, was mainly used in the centre of the village.
The biggest challenge on site was the limited space in the old town centre. As the streets were not passable by lorry, our fitters parked the lorry outside the village centre and then pulled the CASAFLEX pipe over the winding streets to the trench. The laying of the pipes themselves has been a complete success so far.
Project
In the diverse Swiss municipality of Sachseln, a district heating pipeline was laid near Lake Sarnersee for the local heating network. Our efficient CASAFLEX and PREMANT DUO pipes were used for the Flüelistrasse to ensure that the residents are supplied with sustainable energy in the future.
Execution
Construction work began in March 2023 and is still ongoing, as the construction project is part of a larger heating network. As a pipe constructor, we have already realised several projects for the customer together with the engineering office. The aim of this project was to connect Flüelistrasse to an existing district heating network. The energy released for the district heating pipeline is obtained from the combustion of wood chips.
As the Flüelistrasse connects the village of Sachseln with Flüeli-Ranft and the pilgrimage site there, it was important to minimise damage to the road. Our CASAFLEX and PREMANT DUO pipes have two inner pipes of the same size for the flow and return of thermal energy. As only one pipe was required per line instead of two, our fitters were efficient when laying the pipes. The biggest challenge in the construction project was installing the pipe at the Salzbrunnen bridge. Because the pipeline could not be installed above or below the bridge, it was necessary to attach it to the side of the Salzbrunnen bridge with special fastenings.
Project
In the popular sports and recreation centre in Bürglen, a reliable and robust local heating pipeline from BRUGG Pipes was laid for Klausenstrasse for the local community. Our perfectly matched CASAFLEX and PREMANT pipes were used in this project to provide residents with a reliable supply of sustainable energy in the future.
Realisation
Construction work began in March 2023 and lasted until July 2023. The aim was to lay a local heating pipeline for the school building and the surrounding residential buildings. The flexible CASAFLEX and the rigid PREMANT pipe system were used in several construction stages. In total, the fitters installed a route length of 400 metres during this construction phase. Approx. 1,700 metres are planned for the final expansion.
Important steps in this project included parking the lorry with the material, pulling and aligning the pipe in the trench and fitting the couplings. Our resistant PREMANT pipes were used for the transport line and the flexible CASAFLEX pipes were used for the house connections. A considerable challenge in the project was laying the pipeline from the power station up the steep mountainside to the main road. Despite the demanding gradient on site, our fitters mastered the individual construction stages with aplomb.
Project
In the foothills of the Swiss Alps, the municipality of Rothenthurm has decided to install a district heating pipeline. Many public and private buildings in the town are to be heated sustainably with a central heat source. Our compatible CASAFLEX and PREMANT pipes were used to provide the residents with an optimum energy supply in the future.
Realisation
The construction project started in summer 2019 and involved laying a total length of up to six kilometres. Not only existing buildings, but also new flats will be connected to the heating network. Our rigid PREMANT pipes were used for long and straight sections. Flexible CASAFLEX pipes were used for the house connections.
In the first construction phase, the district heating pipeline was built from the new heating centre to the primary school building. The energy for the heating centre is supplied by an enormous wood boiler, in which heat is generated by burning wood chips and transported to the buildings through our pipes.
When carrying out the project, the trench along the roads had to be cleared in such a way that it caused as little disruption to road traffic as possible. Another challenge for the workers on the project was the electrical and water pipes already laid in the ground. The altitude of the construction site posed an additional challenge in winter, as the construction pits had to be kept clear of snow.
Project
We have successfully completed the expansion of the district heating network for our customer EBL (Genossenschaft Elektra Baselland) in the Swiss capital of Bern. With our extremely heavy-duty FLEXWELL DHC district heating pipeline, we have completed a crucial construction phase. Namely the connection between the municipality of Ittigen and the city of Bern. Our pipes were laid under the River Aare to supply the Worblental heating network with sustainable heat in the future.
Execution
The project began immediately after Easter with the delivery of two of our FLEXWELL DHC pipes in the largest available dimension DN 150, which weighed an impressive 7.5 tons per pipe. With a casing diameter of 310 millimetres, a pipe length of 226 meters each was transported to Bern on two drums. Thanks to the use of a special transport with extra width, the pipes were also transported over narrow stretches of land.
The construction site was managed thanks to the use of heavy machinery and six experienced fitters. A special mobile crane with a lifting capacity of 130 tons was used to unload the pipes. Another 60-tonne pneumatic crane lifted the drums into the pipe-laying trolley. Two of the FLEXWELL DHC district heating pipes were pulled from the starting trench on Arastrasse in Ittigen into the empty pipes and laid from there under the river up to Tiefenaustrasse in Bern using cable winches.
Project
The Burgergemeinde and the municipality of Lengnau in the Swiss canton of Bern are focussing on ecological and economical heating with their joint heating network called WärmeLengnau - with the aim of producing heat sustainably. Our durable FLEXWELL DHC steel casing pipe system was used in Moosstrasse to ensure that the town is optimally supplied with heat energy.
Execution
Since 2020, many new district heating pipes from BRUGG Pipes have already been reliably laid for the construction projects of the heating network in Lengnau. In September 2023, a district heating pipe was installed in Moosstrasse as part of these construction projects. The aim was to connect the flexible steel casing pipe to an existing heating centre in the shortest possible time so that public traffic was affected as little as possible.
The short time frame was a considerable challenge for our fitters on site, especially as a total of two FLEXWELL DHC pipes, each 134 metres long, were to be laid. Due to the time constraints, our workers had to unwind the pipes from the reel, straighten them, pull them into the trench and align them particularly quickly and efficiently. As the trench was very close to the road, it was also important to work extremely carefully within the cordoned-off areas when laying the pipes. Another challenge was finding the space for the bogie and ensuring access for the lorry with the drum. Despite the challenges, the installation went smoothly thanks to the hard work of our fitters.
Project
In Zurich, the city with the highest population in Switzerland, a flexible and resistant district heating pipe from BRUGG Pipes was laid for Nürenbergstrasse under narrow conditions. Our FLEXWELL DHC steel casing pipe system was used to provide the residents of the building block with an optimum and sustainable supply of heat.
Execution
The construction project began in September 2023. The aim was to connect the flexible steel casing pipe to an existing pipeline and connect it to the building. The construction work took just three days, with the most important steps being the challenging pulling of the pipe into the trench and the pipe laying itself. Two FLEXWELL DHC pipes were used for this project. As the trench was close to a garden plot, it was important to lay the pipe extremely carefully.
At the construction site, there was hardly any parking space on Nürenbergstrasse for the lorry carrying the material, which is why the workers parked the lorry on the other road and then pulled the pipe across a green area to the trench. Another challenge was that no tractor unit could be used for digging. The fitters on site therefore worked increasingly with deflection pulleys to align the pipes underground and master the narrow bends - which they did perfectly.
Project
Insulated pipe systems at the Swiss Museum of Transport
At Switzerland’s largest and most famous museum – the Swiss Museum of Transport located directly on Lake Lucerne – BRUGG Pipes collaborated on an amazing project together with Energie Wasser Luzern (ewl) in March 2022. The district heating and cooling lines connect the new energy centre of the new “House of Energy” multi-purpose building to the existing exhibition buildings through the outdoor area.
Execution
Use of lake water as a modern and ecological source of heating and cooling in Lucerne.
The system is located in the outdoor area of the museum, which is also open to visitors, so fast and efficient execution of the project was of utmost importance and central for all involved parties. Thanks to detailed project planning and coordination, the project went smoothly and was completed on schedule. Installation was carried out by our own installation team to the complete satisfaction of the customer.
A special feature of this project was that the lake water in the immediate vicinity was used as an energy source and distributed with a heat pump. The lake has large heat and cold reserves that can be used ecologically. This is an inexpensive and renewable source of energy with low investment costs and low maintenance. Thanks to the energy from the lake, the use of fossil fuels can be greatly reduced, thereby minimising CO2 emissions. Since the energy is produced locally, long transport routes are not necessary and the added value stays in the region
Project
Near the Swiss municipality of Inwil, we laid our high-quality PREMANT pipes under the river and the motorway in order to provide the residents with an optimum supply of thermal energy in future and to drive forward the extensive expansion of the Ennetsee heating network.
Execution
The construction project went through several stages. Together with the civil engineering department and the pipe installer, we expanded the 2.5-kilometre section. The energy for the heat supply comes from the Perlen waste incineration plant. The special feature of the construction site was that there was a section where the PREMANT pipes had to be laid under the A14 motorway and the Reuss. This was made possible using empty pipes, which were laid 350 metres under the motorway and the river using the flush drilling method. Our pipes were then pulled through these empty conduits, giving them optimum protection from external environmental influences.
In this flush drilling process, two of our DN 250 pipe rods with a length of 16 metres were always transported onto a ramp and then gradually pulled into the empty pipes of the starting pit. The biggest challenge on the construction site was not only the time-consuming pulling of the supply and return pipes into the empty pipes, but also the welding and fitting of the sleeves. After the 16-metre pole had almost disappeared into the ground, the next pole was loaded onto the ramp at the same time. Connecting the two poles together was a challenging job that took over 20 days, especially as only four sleeves with welded seams could be created in one day. However, despite the challenges on site, our fitters successfully mastered these construction sites.
Project
In the popular sports and recreation centre in Bürglen, a reliable and robust local heating pipeline from BRUGG Pipes was laid for Klausenstrasse for the local community. Our perfectly matched CASAFLEX and PREMANT pipes were used in this project to provide residents with a reliable supply of sustainable energy in the future.
Execution
Construction work began in March 2023 and lasted until July 2023. The aim was to lay a local heating pipeline for the school building and the surrounding residential buildings. The flexible CASAFLEX and the rigid PREMANT pipe system were used in several construction stages. In total, the fitters installed a route length of 400 metres during this construction phase. Approx. 1,700 metres are planned for the final expansion.
Important steps in this project included parking the lorry with the material, pulling and aligning the pipe in the trench and fitting the couplings. Our resistant PREMANT pipes were used for the transport line and the flexible CASAFLEX pipes were used for the house connections. A considerable challenge in the project was laying the pipeline from the power station up the steep mountainside to the main road. Despite the demanding gradient on site, our fitters mastered the individual construction stages with aplomb.
Kaukolämpöä Itämeren rannalle
Itämeren rannalla kohoavat näyttävät valkoiset rakennukset ovat tuoneet Heiligendammille epiteetin ”Valkoinen kaupunki meren rannalla”. Valkoisten rakennusten muodostama ”helminauha” on saanut lämpönsä vuodesta 2017 vasta-asennetun kaukolämpöputken toimittamana. Täällä kulkee vanhoja ja uusia kaukolämmön syöttöputkia, joihin on investoitu yhteensä 1,1 miljoonaa euroa. Lähellä Molli-kylpyläradan kiskoja muovivaippaputki DN 200 liitettiin valmiiksi paikalla olleeseen DN 250 -muovivaippaputkeen. German Pipe toimitti ja asensi PREMANT-putkia ja muotokappaleita noin 250 metrin pituudelta.
Kuten tavallista, linjat ristesivät muutaman muun syöttöjohdon kanssa. Staattisen mitoituksen perusteella paineen arvoksi tuli 16 bar. Kühlungsborner-kadulla U- ja Z-laajennukset saatiin sijoiteltua suhteellisen mukavasti. 1 x 2 m:n kulmapaloilla asennusmuhveja ei tarvittu. PREMANT ja FLEXWELL Kylpylärakennuksen ja Grand Hotelin välillä tilanne muuttui. Työmaata rajaavat rakennukset ja tiet olivat lähempänä, ja käytettäviä menetelmiä piti rukata. Täällä jopa 110 °C:n lämpöinen vesi kulkee jopa neljän metrin syvyydessä. BRUGGin FHK-kaukolämpöputki mahdollisti tämän osuuden valmistuksen vaakaporauksella teitä, puistoalueita ja niittyjä kääntämättä. Tässä kohdin siirtymä PREMANTista FLEXWELLiin on olennaista. 16 barin sisäpaine aiheuttaa päissä noin 45 kN:n venytysvoiman. Jotta järjestelmä kestäisi tämän kuorman, liittyville PREMANT-putkille ja -muotokappaleille suoritettiin staattinen mittaus.
Osan voimasta kumoaa vaippakitka, jonka suuruus on noin 4 kN/m. Suurin osa vastavoimasta perustuu kuitenkin muovivaippaputken kulmakappaleiden sivuttaiseen puristumiseen maaperää vasten. Apua tässä on myös FLEXWELL-kaukolämpöputken teräsvaipasta, joka luo ja siirtää osan vastavoimasta. Rakennusvaiheet 3 ja 4 kulkivat vuonna 2013 täydellisesti kunnostetusta Villa Perlestä asuntohotellin taakse. Maahan asennettiin vain liitoskohtien ja luistiventtiilien katkaisemat 600 lisämetriä FLEXWELL 200/310 -putkea. Liitäntä valmiiseen muovivaippaputkeen valmistettiin suluilla. Myöhemmän vaihtokytkennän mahdollistamiseksi 20m²:n alueelle asennettiin peräti 6 palloventtiiliä. ”Heiligendammin kaukolämpöverkon päivitys, rakennusvaiheet 1–4” – (projektin virallinen nimi) osoittaa, kuinka optimaalinen linja voidaan luoda taitavasti suunnitellulla jäykkien ja joustavien putkistojen yhdistelyllä. Staattiset laskelmat laati German Pipe. Virtauslämpötila: 110 °C Nimellispaine: PN 16
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Tehtävä:
Jätteenpolttolaitoksen ja paperitehtaan välille rakennettiin höyryputki. 836 metrin pituisen välikappaleen maanpäällinen asentaminen ei tullut maisemallisista syistä kyseeseen. Käytettävissä ollutta maanpäällistä putkea ei voinut asentaa maaperään. Tarvittiin ratkaisua. Vaatimus: 220 °C:n käyttölämpötila DN 500, siirtomäärä 45 tonnia tunnissa
Ratkaisu:
Asennettiin teräsvaippaputki. Lauhteen paluuputkena toimii Flexwell DN 100 teräksen materiaalinumerolla 1.4404. 836 metrin pätkä koottiin enimmäkseen 12 metrin osista. Erikoisosia tarvittiin suunnanmuutoksiin. Joustava lauhdeputki DN 100 saatiin asennettua yhtenä kappaleena kaivojen välille.
