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Choix des robinets et des serpentins.

Selecting valves and piping coils.

Auteurs : AVERY G.

Type d'article : Article

Résumé

When the design of variable flow hydronic systems was initiated 30 to 40 years ago, little emphasis was placed on the selection of the modulating two-way coil control valves. In many instances the valves that were used were not constructed to meet the high differential pressures encountered in variable flow systems. As a result many variable flow chilled water systems experience Delta Ts that are below design and have chillers that operate inefficiently. This low Delta T is often caused by valves leaking due to either insufficient close-off capabilities or erosion of the seat or plug.

Détails

  • Titre original : Selecting valves and piping coils.
  • Identifiant de la fiche : 2001-0984
  • Langues : Anglais
  • Source : ASHRAE Journal - vol. 42 - n. 4
  • Date d'édition : 04/2000
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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