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Normas DIN – AENOR
DIN EN 1254-20:2019-07

DIN EN 1254-20:2019-07

Copper and copper alloys - Plumbing fittings - Part 20: Definitions, thread dimensions, test methods, reference data and supporting information; German and English version prEN 1254-20:2019 / Note: Date of issue 2019-06-14

Cuivre et alliages de cuivre - Raccords - Partie 20: Définitions, dimensions de fil, méthodes d'essai, données de référence et renseignements d'appui; Version allemande et anglaise prEN 1254-20:2019 / Attention: Date de parution 2019-06-14

Kupfer und Kupferlegierungen - Fittings - Teil 20: Definitionen, Gewindeabmessungen, Prüfverfahren, Referenzdaten und entsprechende Informationen; Deutsche und Englische Fassung prEN 1254-20:2019 / Achtung: Erscheinungsdatum 2019-06-14

Fecha:
2019-07 /Active
Equivalencias internacionales:

prEN 1254-20 (2019-06)

Resumen:
This European Standard contains definitions, thread dimension, reference data (minimum bore), supporting information (assembling instructions) and describes the test methods referenced by other parts of the EN 1254 series.Thread dimensions comprise: wall thickness at threaded portions of fittings, dimensions of tail pipe ends for swivel fittings, dimensions of gas union connectors, thread dimensions and thread profile.Test methods comprise: leak tightness under internal hydrostatic pressure, leak tightness under internal pneumatic pressure, resistance of joints to static flexural strength, resistance to pull out of joints, leak tightness of joints under vacuum, the resistance of joints to temperature cycling, resistance of joints with metallic tube to vibration, integrity of fabricated fitting bodies or having an 'as cast' microstructure, resistance to stress corrosion, detection of a carbon film on the surface of copper fittings, determination of mean depth of dezincification, resistance of joints to pressure cycling, disconnection and re-use, determining if the diameter and/or the length of engagement of a capillary end is/are within the specified tolerance, determining the minimum length of engagement of an integral solder or brazing ring socket having a formed groove.
Keywords:
Bending stress, Copper, Copper alloys, Corrosion resistance, Cross sections, Definitions, Dimensions, Fittings, Information, Internal pressure, Metal pipes, Metal tubes, Mounting instructions, Pipe couplings, Resistance, Soldered joints, Soldering, Stress corrosion, Testing, Thermal shock endurance, Threaded components, Threads, Tightness, Vibration resistance, Wall thicknesses
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