Polytechniek BV since 1980 has an excellent reputation in the field of refrigeration, especially in the agricultural and horticultural sector. We supply various cooling systems on which the control isadapted to the project and that the installation is running as energy efficient as possible.
Examples are weather dependent condensation temperature control, hot gas defrost, electronic expansion valves and inverters for compressors en condensers. This integration ensures perfect alignment and efficient operation.
The different cooling systems we build are:
- Separate dx-cooling systems
- Central dx-cooling systems with expansion valves
- Central pump refrigeration systems
- (In)direct central pump refrigeration (ammonia)
As of January 1, 2015 refrigerant R22 it is no longer allowed to fill in existing installations or to service the installations mixed with refrigerant R22. Studies show that many hundreds of thousands of installations are still running with refrigerant R22. Many of these units will have to be replaced by installations with R22 replacement refrigerants.

  • Central pumping systems
  • Indirect central pumping systems (chillers)
  • Natural refrigerants (ammoniak/CO2/isobutaan/propaan)
  • Heat and cold storage
  • Cells Construction


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With Polytechniek you get more than 40 years of experience.

Polytechniek supports you in each and every step in the realization and maintenance of your technical installation.

Latest projects

Below is a selection of our recent projects. Polytechniek advises, designs, installs and maintains all technical installations.