NEN-EN 12178:2003 en

Koelsystemen en warmtepompen - Vloeistofniveau-indicatoren - Eisen, beproeving en merken


Over deze norm

Status Definitief
Aantal pagina's 14
Commissie Koelinstallaties en warmtepompen
Gepubliceerd op 01-12-2003
Taal Engels
This European Standard specifies safety requirements, safety factors, test methods, test pressures and marking of liquid level indicating devices, referred to throughout this standard as "level indicators", for use in refrigerating systems and heat pumps. It applies to devices connected to refrigerant vessels (e.g. on high-pressure liquid receivers, intercoolers and low-pressure separators) and to devices connected to other parts of a refrigerating system (e.g. oil-level sight glasses on a compressor). This standard applies to those types of level indicators that are direct and indirect reading devices (e.g. sight glasses, frosting tubes), and includes electrical and pneumatic indicators. This standard describes the procedure to be followed when designing (by calculation or by an experimental design method) level indicator parts subjected to pressure as well as the criteria to be used for the selection of materials. This standard applies to the design of level indicators with respect to pressure containment and describes methods by which the reduced impact values at lower temperatures may be taken into account in a safe manner. It also gives guidance on some aspects of application and installation.


ICS-code 27.080
Nederlandse titel Koelsystemen en warmtepompen - Vloeistofniveau-indicatoren - Eisen, beproeving en merken
Engelse titel Refrigerating systems and heat pumps - Liquid level indicating devices - Requirements, testing and marking
Wordt vervangen door
Normatieve verwijzingen
  • 2014/68/EU,
  • 97/23/EG, Drukapparatuur (PED)



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