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National standards and national normative documents

Publication date

July 2011

Number of pages

36 p.

Reference

NF EN 16084

ICS Codes

27.080 Heat pumps

27.200 Refrigerating technology

Classification index

E35-424

Print number

1 - 16/06/2011

European kinship

EN 16084:2011

Sumary

Refrigerating systems and heat pumps - Qualification of tightness of components and joints

Le présent document décrit le principe et les méthodes d'essai à suivre pour la qualification de l'étanchéité des différents composants dans les systèmes de réfrigération et les pompes à chaleur définis dans la série des normes NF EN 378.

Replaced standards (2)

XP E35-424-1

February 2006

Standard Cancelled

Refrigerating systems and heat pumps - Qualification of tightness of static components - Part 1 : static components (fittings, bursting discs, flanged or fitted assemblies)

Le présent document fait partie d'un ensemble de normes traitant de la qualification de l'étanchéité des différents composants présents dans les systèmes de réfrigération et pompes à chaleur. Il décrit le principe et la méthode d'essai à suivre pour la qualification de l'étanchéité des composants statiques.

XP E35-424-2

December 2007

Standard Cancelled

Refrigerating systems and heat pumps - Qualification of tightness of components - Part 2 : semi-static components (expansion valves, valves, filling valves, pressure switch, safety valves against excessive pressure)

Le présent document fait partie d'un ensemble de normes traitant de la qualification de l'étanchéité des différents composants présents dans les systèmes de réfrigération et pompes à chaleur. Il décrit le principe et la méthode d'essai à suivre pour la qualification de l'étanchéité des composants semi-statiques.

Standard replaced by (1)

NF EN ISO 14903

August 2017

Standard Cancelled

Refrigerating systems and heat pumps - Qualification of tightness of components and joints

ISO 14903:2017 provides the qualification procedure for type approval of the tightness of hermetically sealed and closed components, joints and parts used in refrigerating systems and heat pumps as described in relevant parts of ISO 5149. The sealed and closed components, joints and parts concerned are, in particular, fittings, bursting discs, flanged or fitted assemblies. The tightness of flexible piping made from non-metallic materials is dealt with in ISO 13971. Metal flexible piping are covered by this document. The requirements contained in this document are applicable to joints of maximum DN 50 and components of internal volume of maximum 5 l and maximum weight of 50 kg. ISO 14903:2017 is intended to characterize their tightness stresses met during their operations, following the fitting procedure specified by the manufacturer, and to specify the minimal list of necessary information to be provided by the supplier of a component to the person in charge of carrying out this procedure. It specifies the level of tightness of the component, as a whole, and its assembly as specified by its manufacturer. It applies to the hermetically sealed and closed components, joints and parts used in the refrigerating installations, including those with seals, whatever their material and their design are. ISO 14903:2017 specifies additional requirements for mechanical joints that can be recognized as hermetically sealed joints.

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