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Vacuum-insulated piping

Vacuum-insulated system

The vacuum-insulated system can be used for both steam and hot water pipelines anywhere the soil is waterlogged or where groundwater is present. It is also suitable for underpasses running under roads and deeper pipeline installations. During production, the requirements set by ČSN EN ISO 9001-2001 are met and after production is finished, the piping undergoes a series of tests. The system can withstand temperatures up to 400 °C. The piping is insulated against radiant heat and the space between the service pipe and the protective metal pipe is vacuumed.

What are the benefits of a vacuum-insulated system?

  • Robustness of the entire system
  • Reliable construction
  • Quick assembly without using concrete
  • Insulation does not age thanks to vacuum, pipeline operating parameters remain the same
  • Heat loss is reduced by up to 40 % compared to the channel design
Vakuované potrubí

What is the difference between open and closed system?

  • In an open system, the piping is not equipped with vacuum-insulated end caps, so ambient air, i.e. ambient humidity, enters the space between the service and casing pipe.
  • In contrast, a closed system has end caps fitted to close the space between the service and casing pipe. They are equipped with plugs, used for vacuuming and removing moisture.

What happens during vacuuming?

During vacuuming, the end cap sucks out the air between the service and the casing pipe, including any moisture contained in the air. This virtually eliminates heat transfer by convection between the insulation and the outer casing pipe.

Interested in vacuum-insulated piping? Get in touch!

We perform several types of testing after production begins

Specifically, we check the insulation condition, dimensional stability, absorbency of the PUR foam, and, in the case of integrating the alarm system into the piping, we perform a moisture test in the insulation of each component. All systems are manufactured according to the requirements of standard ČSN ISO 9001-2001. The systems must be laid and installed by a qualified company. Training in laying and installation work, including jointing, can be completed at our company.