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Here you can find the answers to frequently asked questions. We are always working on extending this area for you. If you cannot find the answer to your issue, do not hesitate to get in touch with us.
The FLEXWELL FHK district heating cable is a flexible, double-walled stainless steel pipe system with PUR insulation for district heating, district cooling and domestic hot water. It impresses with its 100 % diffusion tightness, high energy efficiency, long service life and quick and easy installation. Particularly suitable for demanding installations in a wide variety of district heating projects.
The FLEXWELL-FHK is laid trenchlessly or conventionally. The high flexibility allows flexible routing over roads, railway tracks or waterways. Horizontal directional drilling (HDD) enables minimally invasive installation, especially in urban or sensitive areas.
The FLEXWELL-FHK can be monitored with the WIREM system. This measures resistance values, detects moisture or leaks at an early stage and localises damage precisely. This ensures maximum operational reliability.
FLEXWELL-FHK is ideal for district heating pipes, district cooling and domestic hot water. The pipe system is particularly suitable for renovations, urban areas and routes that are difficult to access.
Compared to conventional district heating pipes, the flexible FLEXWELL-FHK is generally quicker to install, especially in demanding ambient conditions. It is 100 per cent diffusion-tight, low-maintenance and energy-efficient.
The CASAFLEX district heating pipe is a flexible, self-compensating pipe system with a spirally corrugated stainless steel inner pipe and high-quality thermal insulation. It is designed for high temperatures and pressures and is ideal for house connections and complex pipe runs.
CASAFLEX offers a maximum operating temperature of 150 °C (briefly up to 180 °C), operating pressures of 16 or 25 bar and is available in the UNO (one carrier pipe) and DUO (two carrier pipes) versions. The carrier pipe is made of spirally corrugated stainless steel and the thermal insulation is made of PIR rigid foam.
Thanks to its high flexibility, CASAFLEX can be laid directly from the drum without additional welding work or joint installation. This enables fast and cost-effective installation, even in narrow routes or difficult ground conditions.
CASAFLEX is ideal for house connections or as primary supply lines in local or district heating networks. Their flexibility and robustness make them the ideal solution for a wide range of applications.
FLEXSTAR is a highly flexible, pre-insulated pipe system that has been specially developed for connecting heat pumps and for use in local heating networks or house-to-house connections. Thanks to the small bending radii, installation is possible in the tightest of spaces and without house entry bends.
FLEXSTAR is designed for operating temperatures up to 95 °C (short-term) and operating pressures up to PN 6. The carrier pipe is made of PEXa with an EVOH oxygen barrier, the thermal insulation is made of PUR foam with a lambda value of 0.024 W/m-K. The system is longitudinally watertight in accordance with DIN EN 15632-2.
Thanks to its high flexibility and small bending radii, FLEXSTAR can be easily transported by just one person. The small dimensions of the compact ring mean that FLEXSTAR takes up very little space in the warehouse. It can also be transported quickly and easily using small transport vehicles, which massively reduces the effort required to bring the pipe to the construction site.
FLEXSTAR impresses with its high degree of flexibility, which makes installation and connection much easier.
The high-quality PUR insulation with a lambda value of 0.024 W/m-K significantly reduces heat loss. Compared to conventional PE insulation, up to 40 % better insulation values can be achieved, resulting in increased energy efficiency.
BIM stands for Building Information Modeling, which means building data modeling in German. It is a method of digital planning, execution and management of buildings. All relevant information about a building is recorded and managed in a digital model. This includes not only geometric data, but also information about materials, costs, schedules and other relevant aspects. BIM enables more efficient collaboration between all those involved in construction and better planning and control of construction projects.
BRUGG Pipes has its own BIM library, which can be accessed via this link: https://www.bruggpipes.com/bim
District heating is the term for the delivery of heat to supply buildings with space heating and hot water. Thermal energy is transported in thermally insulated pipe systems, which are primarily laid underground.
Go to our district heating products
The difference between local and district heating is generally a linguistic one. The term local heating is used to describe smaller, decentralised heating networks, whereas district heating refers to larger networks that generally have large transport pipes. Go to our district heating products.
The name refers to our low-temperature flexible pipe system. It is a combination of the Italian word calore (heat) and PEX. In our product range, the carrier pipe is made from PEX plastic (cross-linked polyethylene).
Go to the CALPEX product range.
PE is the abbreviation for polyethylene and the X refers to cross-linking.
This makes a particularly robust plastic pipe, which we use as an inner pipe in our CALPEX range.
The name refers to the PUR foam, which is used in the CALPEX product range and ensures exceptionally low thermal losses. The lambda value is currently an outstanding 0.0199 W/m*K.
Go to the CALPEX PUR-KING product range.
The lambda value describes the thermal conductivity of a material and is one of the most important values for assessing the suitability of a substance for energy-efficient construction and renovation.
Go to the CALPEX PUR-KING product range.
The U value is a thermal transmittance coefficient used to specify the thermal insulation in pipe construction. The thermal transmittance unit is: W/m2K. This indicates how much heat (in watts W) per square metre (m2) flows through a component between the inside and outside for each degree of difference in temperature (in kelvin K).
Main types of insulated pipes for local and district heating
The insulated pipes needed for transporting hot water can be divided into two broad categories: rigid and flexible pipe systems. Both have their advantages and disadvantages, and the decision about which pipe system should be used in each individual case depends on the specific technical requirements.
Cryogenic media such as LNG (Liquefied Natural Gas) are used in various ways in the industry. LNG is often used as a fuel in heavy-duty vehicles and ships, as it has a higher energy density and produces fewer emissions than diesel fuels. It is also used as a fuel for power plants and for generating steam and heat in the industry. Additionally, cryogenic media such as liquid nitrogen and liquid oxygen are used for cooling machinery and equipment, as well as for storing materials that need to be kept at low temperatures, such as biological samples or food. Cryogenic media can also be used in the production of semiconductors and other electronic components to control temperature and improve product quality.
Flexible pipe systems for cryogenic applications
