ShareSelecting valves and piping coils.
Author(s) : AVERY G.
Type of article: Article
Summary
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.
Details
- Original title: Selecting valves and piping coils.
- Record ID : 2001-0984
- Languages: English
- Source: ASHRAE Journal - vol. 42 - n. 4
- Publication date: 2000/04
- Document available for consultation in the library of the IIR headquarters only.
Links
See the source
Indexing
- Themes: Other air-conditioning equipment
- Keywords: Variable volume; Design; Automatic valve; Air conditioning; Chilled water; Water circuit
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