NEN-EN 1491:1994 Ontw. en

Kranen in gebouwen - Expansieklep - Eisen en beproevingen

  • Deze norm is ingetrokken sinds 01-04-2000


Over deze norm

Status Ingetrokken
Aantal pagina's 14
Commissie Drinkwatervoorziening
Gepubliceerd op 01-07-1994
Taal Engels
This standard specifies: - materials, surface coatings and finishes of the product. - dimensions, hydraulic characteristics, tightness and mechanical properties, which shall be fulfilled by the expansion valves. - tests to determine that the characteristics and properties are met. - marking and presentation. of a hydraulic expansion valve of nominal sizes DN 15 to DN 40 and with working pressures from 0,1 MPa (1 bar) to 1,0 MPa (10 bar) for fitting to storage water heaters and heating circuits with a distribution temperature of 95 °C, for all energy sources. The expansion valve controls and limits the fluid pressure contained in a hot water heater. The expansion valve does not control the temperature and does not constitute alone the protection required for storage water heaters.


ICS-code 91.140.60
Nederlandse titel Kranen in gebouwen - Expansieklep - Eisen en beproevingen
Engelse titel Building valves - Expansion valve - Characteristics and tests
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Normatieve verwijzingen
  • 89/106/EEG, Bouwproducten



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