Brugg Pipes, a leading provider of flexible and rigid pipe systems and complete solutions in the field of local and district heating, successfully completed the connection of Vaduz Castle in the Principality of Liechtenstein to the district heating network in spring – a technically and logistically challenging project that even involved the use of a helicopter.
In future, the castle grounds and adjoining buildings will be supplied with sustainable heat via the district heating network of VfA Buchs (Switzerland) – largely generated from the waste heat of a waste-to-energy plant.
As Brugg Pipes announced on April 28, the company was responsible for the entire project around the princely palace: from the structural calculations and technical planning to the production of special components, installation and final quality control.
The special topographical conditions – steep mountain slopes and limited space – placed high demands on the planning. The castle is located around 120 m above the municipality of Vaduz, which meant that a height difference of over 100 m had to be overcome for the 300-metre-long district heating pipeline.
Flexible, pre-insulated FLEXWELL-FHK pipes were used for around 120 m of the middle section. These do not require any additional expansion bends and adapt perfectly to the difficult terrain, according to the company.
The installation in the steep forest section was particularly spectacular: Here, the pipes were transported by helicopter and installed at fixed points previously anchored in the rock – a safe, fast and efficient solution, even under challenging conditions, according to Brugg.
Project video: https://www.youtube.com/watch?v=Ewqb4QVZisU
